Adoption of integrated pest management(IPM) practices in the Guatemalan highlands has beenlimited by the failure of researchers andextensionists to promote genuine farmer participationin their efforts. Some attempts have been made toredress this failure in the diffusion-adoptionprocess, but farmers are still largely excluded fromthe research process. Understanding farmers'agricultural knowledge must be an early step toward amore participatory research process. With this inmind, we conducted a semi-structured survey of 75Cakchiquel Maya farmers in Patzún, Guatemala, tobegin documenting their pest control (...) practices. Theirresponses revealed that their understanding ofbiological and curative pest control is limited.However, their broad knowledge of cultural preventivepest control practices could explain why they hadfaced few pest problems in their traditionalmilpa (intercrop of corn, beans, and other edibleplants). The majority of these preventive practicesare probably efficient and environmentallyinnocuous. (shrink)

Global food security challenges demand an understanding of farmers’ gendered practices and perspectives. This research draws on data from a quantitative survey and qualitative methods to explore gender differences related to farmers’ practices, perceptions, and knowledge of pesticides and other pest management practices in tomato growing regions of Ghana and Mali. A pathways approach based on participatory mapping integrates findings and reveals gender differences in labor and knowledge at different stages of tomato production. Farmers in both countries are (...) heavily reliant on pesticides, but there are also differences in pest management knowledge and practices between them. In Mali, farmers are more familiar with Integrated Pest Management practices, but less aware of potential health risks of pesticides and more likely to engage in dangerous agro-chemical practices. In both countries, women are significantly less aware of pesticide dangers and IPM techniques than men and exposed to pesticides though a variety of pathways. We argue that the gender division of labor and differences in access to resources, information, and power between the two sites leads to gendered pesticide exposure pathways that are often unseen by the biological scientists who tend to focus on the field. Gender inequalities in knowledge and unsafe practices were particularly apparent in Mali compared to Ghana, possibly due to the lower literacy rates and decision making power of women and their narrower range of involvement in tomato production. The article concludes with gender sensitive recommendations to improve IPM research methods, trainings, and technology diffusion. (shrink)

Enhancing the environmental soundness of agricultural practices, particularly in high input systems, is of increasing concern to those involved in agricultural research and development. The Integrated Pest Management Farmer Field School, which is based on farmer participatory environmental education, is compared to the No Early Spray intervention, which is a simple rule approach. A research methodology was developed and tested in the Philippines to document farmers' pre- and post-intervention knowledge of rice field insects, insect/plant interactions, and pesticides. The (...) results indicate that increased knowledge from education is linked to better pest management behavior. It is proposed that the methodology may also be useful for documenting other areas of knowledge, in the design of educational interventions for farmers and in assessing their impact. (shrink)

Integrated pest management has emerged as an important means of managing agricultural pests. Since the mid-1980s, the emphasis in IPM has shifted toward biologically-intensive and participatory research and extension approaches. Finding better means for solving pest problems is high on the agenda for most farmers, and farmers often have significant pest management knowledge and interest in IPM experimentation. This paper describes an approach to participatory IPM research that is being implemented by the IPM Collaborative Research (...) Support Program (IPM CSRP). The approach emphasizes on-farm research with an extrapolation domain beyond the single farm, and in some cases beyond the local region or country. It considers many factors beyond the farm and research station that influence the generation and adoption of IPM technologies and strategies. It emphasizes linkages among farmers, scientists, consumers, bankers, marketers/processors, and policy makers in IPM research priority setting, conduct, and evaluation. The interdisciplinary approach described in the paper is illustrated with a case study from the Philippines. Lessons and conclusions draw on its recent application in other sites as well. (shrink)

Integrated pest management (IPM) has been widely promoted in the developing world, but in many regions its adoption rates have been variable. Experience has shown that to ensure IPM adoption, the complexities of local agro-production systems and context-specific folk knowledge need to be appreciated. Our research explored the linkages between farmer knowledge, pest management decision making, and ecological attributes of subsistence maize agriculture. We report a case study from four rural communities in the highlands of southeast (...) Honduras. Communities were typified by their agro-environments, IPM training history, and levels of infestation by a key maize pest, the fall armyworm (Spodoptera frugiperda Smith). Although variable, infestation levels generally did not justify pest management intervention. Consequently, crop losses from this pest were considered of low importance and most farmers proceeded in a rational fashion by refraining from action in their fields. Farmers attributed the low degree of pest infestation predominantly to abiotic causal factors (rainfall, temperature). The role of natural enemies in controlling this pest (i.e., biological control) was deemed of low importance by farmers; nevertheless, a broad array of such organisms was mentioned by farmers as operating in their maize crop. Farmers’ knowledge of natural enemies only partially matched scientific knowledge and was associated with the ecological features of their respective field settings. Local knowledge about natural enemies was mainly restricted to abundant and easily observable predatory species. Farmers who were knowledgeable about biological control were also familiar with a larger variety of pest management alternatives than uninformed farmers. Management options covered a wide range of curative techniques, including conservation biological control. Farmers who relied on insecticides to manage pest outbreaks knew less about biological control and pesticide alternatives. In contrast, farmers who received IPM training mentioned more types of natural enemies and were familiar with a broader range of alternative pest management tactics. Our research suggests that IPM training modifies local knowledge to better fit its environmental context. This paper provides insights in the environmental context of local agro-ecological knowledge and its linkage with pest management decision making. It also constitutes a basis for modifying IPM extension programs to deliver locality-specific technologies while strengthening the local knowledge base. (shrink)

Insecticide resistance management (IRM) programme was launched in 26 cotton-growing districts of India in 2002 to rationalize the use of pesticides. The IRM strategy is presented within a full Integrated Pest Management (IPM) context with the premise that unless full-fledged efforts to understand all aspects of resistance phenomenon are made, any attempt to implement IPM at field level would not bear results. Unlike earlier IPM programmes, this programme is directly implemented by the scientists of state agricultural universities; (...) thus the information flow is directly from research subsystem to farmers. The extension methodology is different from IPM-farmer field school model, but much the same information is provided in didactic form, through active participation of the farmers throughout the cotton-growing season, by deploying scouts in villages. The knowledge gain of the farmers covered under IRM programme was measured by employing before/after quasi-experimental research design. The overall knowledge gain was significant in terms of identification of insect pests and natural enemies of cotton crop, proper use of insecticides and timely sowing of the crop, but farmers did not reach the desired level of knowledge with respect to other cultural practices, which result in suppression of pest buildup. In the absence of any effective bio-agents, the level of IPM integration is limited to cultural practices, thresholds, agro ecosystem analysis and use of insecticides according to good agricultural practices. (shrink)

The hazard of postharvest pest losses is ubiquitous in peasant farming systems; as a result, farmers invariably have some response to the threat of these losses. Responses to postharvest pests may be more extensive than to field pests, even when, by statistical measures, the usual levels of losses are comparable. In studies of pest management practices in three contrasting areas in Kenya, it was found that farmers virtually always rely on an array of techniques and strategies, usually (...) including both older and more modern practices. There is considerable variation among regions in the techniques used, due not only to climatic and socioeconomic factors, but also to variations in cultural history and preferences. The ways in which management practices have changed over time also vary by region. The major changes have been related to overall system change. Four main sources of change have been paramount: (1) population growth and the intensification of land use; (2) the introduction of new cash crops; (3) the introduction of new marketing infrastructure; and (4) the perception of increased environmental risk. Their effect on the replacement of older practices by newer ones is often interrelated. Traditional techniques are often based on materials derived from bushland, but increasing population density makes these difficult to continue as bushland and its common property resources disappear. Simultaneously, tolerance for losses is reduced as land availability is constrained. With the introduction of a cash crop infrastructure, new methods of pest management, especially pesticide use, become more readily available and may spread rapidly. Areas with good market infrastructure but varying population density may still differ considerably because with abundant land it is possible to compensate for expected losses by additional planting.A study of an FAO project to improve postharvest management through earlier harvesting and a redesigned storage crib indicate some reasons for its lack of widespread acceptance. Little or no attempt was made to adapt techniques to varying circumstances; instead, a single “solution” was meant to be applied across areas of vastly different conditions. In many cases, this project represented a radical response to a problem farmers considered they were coping with acceptably using existing methods. Although it probably represents an improvement over traditional storage methods in purely technical terms, the new technique also often involved major costs, readjustments, and cultural disruptions that may not have been anticipated by its designers. More likely to succeed would be a strategy that begins with some of farmers' existing practices and whose objective is to develop and offer a range of possible improvements from which farmers could select individual components appropriate to their conditions and needs. (shrink)

The concept of community integrated pest management (IPM), which is well developed in Indonesia and Vietnam, was recently introduced in Nepal. However, it has not been widely practiced, due mainly to lack of financial and technical support. This study determined an individual’s willingness to pay (WTP) for community IPM training. Determinants of WTP were identified; and sample average estimates, opportunity costs of training, and probability values were used to estimate WTP for a group of households. Estimated WTP revealed (...) that individuals were in favor of community IPM, hence it could be implemented with the support of local villagers. Community IPM demand functions showed that individuals’ knowledge and awareness of pesticide pollution are crucial for implementation. The annual welfare gained by providing five days community IPM training was calculated to be US $25.23 per household. (shrink)

Theoretical and experimental studies on prey–predator systems where predator is supplied with alternate sources of food have received significant attention over the years due to their relevance in achieving biological conservation and biological control. Some of the outcomes of these studies suggest that with appropriate quality and quantity of additional food, the system can be steered towards any desired state eventually with time. One of the limitations of previous studies is that the desired state is reached asymptotically, which makes the (...) outcomes not easily applicable in practical scenarios. To overcome this limitation, in this work, we formulate and study optimal control problems to achieve the desired outcomes in minimum (finite) time. We consider two different models of additional food provided prey–predator systems involving Holling type IV functional response (with inhibitory effect of prey). In the first scenario, additional food is incorporated implicitly into the predator’s functional response with a possibility of achieving biological conservation through co-existence of species and biological control by maintaining prey at a level that is least harmful to the system. In the second, the effect of additional food is incorporated explicitly into the predator’s compartment with the goal of pest management by maintaining prey density at a very minimal damaging level. For both cases, appropriate optimal control strategies are derived and the theoretical findings are illustrated by numerical simulations. We also discuss the ecological significance of the theoretical findings for both models. (shrink)

Our study in China of two Integrated Pest Management (IPM) training programs for farmers shows that one is more effective than the other in reducing pesticide applications as well as in imparting to farmers an understanding of the rice ecosystem. The two training programs are based upon two different paradigms of IPM. This article uses a triangulated method of measuring concept attainment among farmer trainees in China as one measure of the effectiveness of training. Concepts of insect ecology (...) brought about by training, as well as persistence of concepts one year after training, are measured. This information is compared to farmer data on pesticide applications and yields in order to determine the comparative effectiveness of two models of IPM farmer training in Sichuan Province. Results indicate that the Farmer Field School (FFS) model of training, based upon a new Ecology-Based IPM paradigm, is more effective than the 3 Pests 3 Diseases (3P3D) model based upon an older Economic Threshold IPM paradigm. Crop yield results and pesticide applications by farmers after training are also used to indicate which of these paradigms of insect pest control is more effective, hence scientifically accurate. (shrink)

This article addresses the value of information that affects the ambiguity faced by a decision maker. Our analysis is applied to the case of a farmer whose production can be damaged by a pest attack with unknown probability, this damage being reduced if the farmer decides to use a pesticide. Early warning systems have precisely been implemented in many countries to help farmers avoid inappropriate decisions in terms of pesticide use. We investigate, both theoretically and experimentally, how farmers value (...) these systems. We propose a two-state self-insurance model in which an α\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\alpha$$\end{document}-MaxMin Expected Utility farmer may use pesticides that reduce the loss in the accident state while incurring a cost in both states. Her decision to self-insure or not depends on risk and ambiguity attitudes. We compile and compare the value of two types of information leading to a reduction of ambiguity and analyze their properties with respect to ambiguity attitude. Both types of information are valued positively if the farmer is ambiguity averse. We conduct a framed field experiment in which farmers and agricultural students have to decide whether or not to apply pesticides depending on risk, ambiguity and the associated monetary gains resulting from pesticide cost. The experimental findings support the theory. The average value of information among all participants is between €0.9/ha and €3.3/ha depending on the information gain. (shrink)

The 1989 National Integrated Pest Management Program in Indonesia is a case of a breakthrough in national policy to enhance the ecological balance by conserving natural enemies and diminishing the indiscriminate use of pesticides in the protection of food crops. The Program provided training to agricultural officials and farmers to shift their perspectives in pesticide use through “knowledge transmission” rather than the transferal of “technological packages.” This paper examines how farmers, with the novel understanding they had, responded to (...) the persisting top-down policy of the “complete credit packages” from the government rice intensification agencies and the recurrent outbreak of pests in 1990–1992. IPM knowledge and training provided initial understanding of, and the stimulus to discover, unknown phenomena on the basis of which farmers improved their knowledge and learning capacity. Constraints largely came from the inflexibility of the subsidized scheme of inputs and the inadequate explanation and extension services provided to farmers. (shrink)

Farmers have always played a key role in developing and testing agricultural technology. Scientist initiated agricultural research models and methods that explicitly include the participation of farmers principally have been developed and implemented in the Third World. Recently, these strategies have begun to receive attention in the US sustainable agriculture research community. This paper presents a case study where scientists collaborated with farmers in developing, implementing, and revising research in peach insect pest management in sustainable agroecosystems in California. (...) A theoretical framework constructed from emerging epistemological and philosophical premises is used to point out the imperative of including participatory strategies in US sustainable agriculture. Methods drawn from Rapid Rural Appraisal were adapted to fit the local circumstances of working within intensive peach production systems and with a US farmer or ganization, California Clean Growers Association, in developing a research agenda. Farmer-scientist participation continued throughout the research implementation phases via individual and group meetings. A mid-project workshop provided a forum where farmers had explicit decision-making power over the course of the research project. Selected natural science research results are presented to illustrate the value of merging farmers' and scientists' knowledge in achieving relevant and scientifically interesting information. It is argued that the adoption and innovation of participatory research strategies in US sustainable agriculture will require confronting philosophical and methodological issues at individual and institutional levels. (shrink)

Investment in agricultural extension, as well as its design and practice, are usually based on the assumption that agricultural science generates technology (“applied science“), which extension experts transfer to “users“. This model negates local knowledge and creativity, ignores farmers' self-confidence and social energy as important sources of change, and, in its most linear expression, does not pay attention to information from and about farmers as a condition for anticipating utilization.In practice, farmers rely on knowledge developed by farmers, reinvent ideas brought (...) from outside and actively integrate them into complex farming decisions. Effective extension seems based on checks and balances that match intervention power with farmers' countervailing power, and mobilize farmers' creativity and participation in technology development and exchange.Alternative models for informing extension investment, design, and practice stress adult learning and its facilitation. The farmer is seen as an expert and farm development as driven by farmers' energy and communication. The article is a case study of a rare large scale attempt to use such an alternative model. It suggests that a shift to knowledgeintensive sustainable practices requires a learning process based on participation and empowerment. (shrink)

The Cuban government has undertaken the task of transforming insect pest and weed management from conventional to organic and more sustainable approaches on a nationwide basis. This paper addresses past programs and current major areas of research and implementation as well as provides examples of programs in insect and weed management. Topics covered include the newly constructed network of Centers for the Reproduction of Entomophages and Entomopathogens (CREEs), which provide the infrastructure for the implementation of biological control (...) on state, cooperative, and private farm operations. CREE programs include the mass rearing and release of Trichogramma spp. to manage insect pests of cassava, tobacco, sugarcane, and improved pasture. The entomopathogens, Bacillus thuringiensis, Beauveria bassiana, Metarhizium anisopliae, and Verticillium lecanii, are being mass produced in the CREEs and applied to control a number of key insect pests. A traditional method employed by peasant farmers of using the predatory ant Pheidole megacephala (Fabricius) in the biological control of sweetpotato and banana insect pests has been further developed and implemented. Efforts are underway to rear nematode species that attack insect pests and identify plant extracts with insecticidal qualities as potential management tools. Weed management has moved away from dependence on herbicides and toward alternative techniques that include weed suppression based on rotation schemes, limited use of selective herbicides, and new tillage equipment and practices. (shrink)

Multiplicity and continual change characterize the Peruvian agricultural knowledge and information system (AKIS), reflecting changes in the agricultural sector as a whole. The evolution of these changes can be traced back to the pre-Columbian era when a relatively stable and well-organized system based on indigenous knowledge prevailed. During colonial (1532–1821) and early Republican times (beginning 1821) several changes affecting the agricultural sector contributed to a weakening of indigenous knowledge systems. During the 20th century extension services provided by the government and (...) a variety of private organizations began to play an important role in the dissemination of information, albeit in an erratic way. Since the 1970s the system increased in complexity with the emergence of non-governmental institutions. Today government participation is limited and there is a more important participation by a number of NGOs and private organizations. This diversity of actors using different approaches has generated disarray in the information system owing to the lack of coherent policies to guide the interaction among actors. This paper uses the case of potato pest control-related information to illustrate changes in local knowledge systems. It differentiates pest control based on indigenous knowledge, chemical control, and integrated pest management (IPM) and explains how changes in the system have influenced the use of these three types of information in AKIS. Currently, the coexistence of different types of potato pest control information promoted and used by diverse and usually unconnected sets of organizations and individuals presents a challenge and requires inter-institutional action guided by clear policies to promote sustainable agriculture. (shrink)

Agriculture has long struggled to reconcile production with biodiversity conservation. Industrial farming practices that erode structural complexity within crop fields and across entire landscapes, as well as widespread pesticide use, have resulted in declining insect abundance and diversity globally. Recognition of socio-environmental consequences have spurred alternative pest management paradigms such as integrated pest management (IPM) and conservation biological control (CBC), which emphasize ecology as the scientific foundation for a sustainable agriculture. However, adoption of these approaches at (...) scales large enough to impact biodiversity has been slow, particularly in industrialized countries. Landscape-scale management is an integral component of ecological agriculture, making pest control and biodiversity conservation collective problems that require coordination among multiple stakeholders. The extent to which farmers recognize and act upon this perspective is not well studied. Through literature synthesis and a case study of Southern Wisconsin, I analyze factors shaping farmer adoption of insect and landscape management practices through the lens of constrained choice. I argue that multiple overlapping institutions (social networks, market forces, science and technology, and political-legal systems) co-produce farmer behaviors and landscape structure, largely to the detriment of ecological pest control and biodiversity. Wisconsin farmers' entomological concerns largely overlook beneficial insect species and eschew landscape thinking. Ultimately, slowing agricultural drivers of insect biodiversity declines will likely require large-scale coordination and political-economic change. (shrink)

This paper reports on action research that evaluated local perceptions and knowledge of indigenous tree planting and management in the Romwe catchment, Chivi District, southern Zimbabwe. The species tested were the overexploited Afzelia quanzensis, important for timber and carvings of sculptures and utensils; Sclerocarya birrea, the marula tree used for wood, bark, and fruit; and Brachystegia glaucescens, the dominant miombo tree species, used for firewood, fiber, and fodder. Participants volunteered to plant and manage the test seeds, while a research (...) team monitored their activities and results for 26 months. For Afzelia quanzensis, the germination rate was 81%, and 69% of the seedlings were still alive after one year. In the case of Sclerocarya birrea, the germination rate was 69%, and the one-year survival rate was 50%. For Brachystegia glaucescens, the germination rate was only 30%, and the survival rate was 31%. The main reasons for planting were to provide shade, to serve as a windbreak, and to conserve and gain individual control over dwindling natural resources, particularly Afzelia quanzensis. Women were generally more active and innovative than men. For instance, they searched for their own seeds or seedlings in the bush when there weren’t sufficient plants. Some participants tried out various indigenous methods of pest and disease control, water conservation, and moisture retention. Group feedback sessions and informal interactions provided the opportunity to share experiences. The participants learned that indigenous trees can be purposefully planted and were not simply a gift from God. Despite the droughts and political instability of recent years, a growing number of people became involved in tree planting during 2002–2003. As a result, there is now greater awareness among the local population of dwindling resources and their future potential. (shrink)

Sodium monofluoroacetate (1080) is a mammalian pesticide used in different parts of the world for the control of mammalian pest species. In New Zealand it is used extensively and very successfully as a conservation management tool for the control of brushtail possums (Trichosurus vulpecula) – an introduced marsupial that has become a substantial agricultural and conservation management pest. Possums pose a threat to cattle farming in New Zealand as they are a vector for bovine tuberculosis. In (...) protected natural areas, possum browsing is responsible for large scale defoliation of native vegetation. As with many other pesticides, there has been some degree of popular concern about the use of this toxin and its safety, with particular reference to non-target effects. These concerns have been associated with potential non-target effects on human health, and the health of animals of recreational value (e.g., hunting dogs and game animals). This has led to the development of a strong “anti-1080” lobby in New Zealand. In contrast, this study encompasses a science-based risk analysis focusing on the potential risks to non-target native wildlife with a particular focus on chronic toxicity. It finds that there is evidence that 1080 may have endocrine disrupting capabilities (with potential relevance for non-target wildlife) but that this still needs more detailed investigation. This can be clarified by further targeted research. Further research is also needed to test the degradation rates of 1080 and its breakdown products at ecologically-relevant temperatures (i.e., winter stream temperatures – below 11 °C). Such research may demonstrate that some adjustment to 1080 risk management is warranted in New Zealand, or it may help to put to rest the current controversy over the use of this cost effective conservation management tool. (shrink)

This paper addresses the motivations behind farmers’ pesticide use in two regions of Bangladesh. The paper considers farmers’ knowledge of arthropods and their perceptions about pests and pest damage, and identifies why many farmers do not use recommended pest management practices. We propose that using the novel approach of classifying farmers according to their motivations and constraints rather than observed pesticide use can improve training approaches and increase farmers’ uptake and retention of more appropriate integrated pest (...) management technologies. (shrink)

Some models anticipate that liberalized agricultural trade will lead to increased crop diversity, while other models make the opposite claim. These positions were explored in southwestern British Columbia, Canada where, between 1992 and 1998, government subsidies and other measures designed to protect horticultural farmers were lifted, exposing these farmers to foreign competition. Public hearings on the future of agriculture provided an opportunity to tap the knowledge and experience of people affected by this transition. Analysis of transcripts from these hearings, which (...) was confirmed by industry data, shows that trade liberalization has led to the loss of the local fruit and vegetable processing industry. Stakeholders saw the loss as a major factor affecting the choice of crops grown locally. To test this assertion, crop diversity data were analyzed, differentiating crops grown for the processing industry from those grown for the fresh market. Results show that crop diversity increased for processing crops but not for fresh crops. Farmers who used to produce commodities for the fruit and vegetable processing industry seem to have been forced to find new crops to cope with the decline in the processing industry. Here then is a case where the effects of trade were indirect (they were mediated by another variable: the loss of the processing industry) and variable (they differed for the two groups of crops). This may have significant environmental implications as scientific research shows that diverse agro-ecosystems are better able to withstand pest outbreaks and require less agri-chemicals than simple systems. (shrink)

Recent trends in agriculturalresearch and development emphasize the need forfarmer participation. Participation not onlymeans farmers' physical presence but also theuse of their knowledge and expertise.Understanding potentials and drawbacks of theirlocal knowledge system is a prerequisite forconstructive collaboration between farmers,scientists, and extension services.An ethnoentomological study, conducted in aTharu village in Nepal, documents farmers'qualitative and quantitative knowledge as wellas perceptions of insects and pest management,insect nomenclature and classification, andissues related to insect recognition and localbeliefs. The study offers a basis to (...) improvepest management programs in terms of efficacyand acceptance. It demonstrates, for instance,that a concept of pests and beneficials isvirtually missing in traditional farmingcommunities and that the Tharu folkclassification profoundly differs from thescientific classification, but is not radicallydifferent from other folk entomologicalsystems. Insects belong to the taxa calledkiraa consisting of arthropods andnon-arthropods that interact with humans. Theyare classified in several overlappinghierarchies where locomotion and human impactplay major roles while morphological criteriaare almost irrelevant. Recognition ofkiraa, however, is dominated by agriculturalaspects followed by physiological-behavioral,ecological, and human-directed features.Morphological criteria play a minor role. Innomenclature, however, the insects' physicalappearance is more important than otherfeatures. The study further shows that male andfemale farmers have different perceptions ofkiraa.The insect-related knowledge system of theTharu has prevented farmers from using modernpesticides in the past. In the course ofmodernization, however, some aspects of theirknowledge system could become obsolete andprove disadvantageous to their livelihood andagro-ecosystems. (shrink)

The goal of this paper is to show how culture – shared norms and values – is challenged and used to facilitate cooperative behavior within the context of farmer field schools (FFS) in central Luzon, Philippines. The success of the FFS is primarily associated with cultural norms that encourage experiential and collective learning and eventually lead to the adoption of integrated pest management (IPM) methods among the farmers. The study was conducted in central Luzon, the rice granary region (...) of the Philippines, from 1992 to 1995 and again in 1999. Both qualitative and quantitative research methods were employed. Results indicate that a keen understanding of Filipino culture and values is essential if FFS is to be successful and if farmers are to successfully learn and practice IPM. (shrink)

The rationale for pesticide use in agriculture is that costs associated with pesticide pollution are to be justified by its benefits, but this is not so obvious. Valuing the benefits by simple economic analysis has increased pesticide use in agriculture and consequently produced pesticide-induced “public ills.” This paper attempts to explore the research gaps of the economic and social consequences of pesticide use in developing countries, particularly with an example of Nepal. We argue that although the negative sides of agricultural (...) development, for example- soil, water, and air pollution; pest resistance and resurgence; bioaccumulation, bio-magnification; and loss of biodiversity and ecosystem resilience caused by the use of pesticides in agriculture, are “developmental problems” and are “unintentional,” the magnitude may be increased by undervaluing the problems in the analysis of its economic returns. Despite continuous effort for holistic system analyses for studying complex phenomena like pesticides impacts, the development within the academic science has proceeded in the opposite direction that might have accelerated marginalization of the third world subsistence agricultural communities. We hypothesize that, if these adversities are realized and accounted for, the benefits from the current use of pesticides could be outweighed by the costs of pollution and ill human health. This paper also illustrates different pathways and mechanisms for marginalization. In view of potential and overall negative impacts of pesticide use, we recommend alternative ways of controlling pests such as community integrated pest management (IPM) along with education and training activities. Such measures are likely to reduce the health and environmental costs of pesticide pollution, and also enhance the capabilities of third world agricultural communities in terms of knowledge, decision making, innovation, and policy change. (shrink)

The traditional command and control approach and the more recent free market have proven inadequate for promoting ecological agricultural development in China. Organic certification represents a regulated market mechanism with the potential to stimulate ecologically based agricultural research, extension, and investment. Recent linkages between the global organic food industry and local agricultural development in China provide an opportunity to test this potential. The article examines China’s two largest organic certification systems for their potential to promote the adoption of integrated (...) class='Hi'>pest management (IPM) as a key component of ecological agriculture. Organic certification is providing a format for research, extension, and implementation of IPM principles and practices, and has the potential to do much more. However, possible contradictions between ecological and market rationality, inherent in organic certification and marketing systems, may be exacerbated by the authoritarian political economy of rural China. (shrink)

What are management gurus? Who are they? Why do we need them? This informative and practical guide analyses the value to be gained from reading the gurus, sets the growth of gurudom in context and traces the lines of development of the major schools of thought from their beginnings to the present day.

In order to enlarge the pool of knowledge available in the public domain, temporary exclusive rights are granted to innovators who are willing to fully disclose the information needed to reproduce their invention. After the 20-year patent protection period elapses, society should be able to make free use of the publicly available knowledge described in the patent document, which is deemed useful. Resistance to pesticides destroys however the usefulness of information listed in patent documents over time. The invention, here pesticides, (...) will have a decreased effectiveness once it enters the public domain. In some cases pesticides lose most of their efficacy shortly after temporary exclusive rights expire. Society’s share of the patent bargain—having new useful knowledge available in the public domain—is lost. Resistance can be slowed down, if pesticide use is limited by optimal compliance. Stimulating proper use is generally not compatible with existing market incentives for patent holders, since these have to be able to maximize profits in order to recoup research and development costs and satisfy obligations to the company’s stakeholders. Another incentive system is needed to ensure longevity of pesticides, which at the same time does not hamper future research. (shrink)

This article examines the construction of image recognition algorithms for the classification of plant pathology problems. Rooted in science and technology studies research on the effects of agricultural big data and agricultural algorithms, the study ethnographically examines how algorithms for the recognition of plant pathology are made. To do this, the article looks at the case of a German agtech startup developing image recognition algorithms for an app that aims to help small-scale farmers diagnose plant damages based on digital images (...) of their symptoms. The study posits that the construction of these algorithms can be grasped as a succession of layers, at each of which the startup’s employees carry out different selection practices. It is argued that these practices gradually inscribe a selective recognition of the phenomenon of plant pathology into the algorithms of the app. This selective recognition is reflected in the fact that the emerging algorithms are effective in identifying isolated plant damages on isolated crops, while ignoring most agroecosystem-related actors and relations through which plant damages arise. The article concludes that the app’s selective recognition of plant pathology is likely to perpetuate or even exacerbate the pesticide use of its users. This is because the app’s view of plant pathology as a phenomenon comprised of isolated plant damages on isolated crops is more compatible with the use of chemical pesticides than with approaches to crop protection that strive for a more moderate use of these substances (e.g., integrated pest management, agroecology, organic agriculture). (shrink)

The interest of F. Macfarlane Burnet in host–parasite interactions grew through the 1920s and 1930s, culminating in his book, Biological Aspects of Infectious Disease, often regarded as the founding text of disease ecology. Our knowledge of the influences on Burnet’s ecological thinking is still incomplete. Burnet later attributed much of his conceptual development to his reading of British theoretical biology, especially the work of Julian Huxley and Charles Elton, and regretted he did not study Theobald Smith’s Parasitism and Disease until (...) after he had formulated his ideas. Scholars also have adduced Burnet’s fascination with natural history and the clinical and public health demands on his research effort, among other influences. I want to consider here additional contributions to Burnet’s ecological thinking, focusing on his intellectual milieu, placing his research in a settler society with exceptional expertise in environmental studies and pest management. In part, an ‘‘ecological turn’’ in Australian science in the 1930s, derived to a degree from British colonial scientific investments, shaped Burnet’s conceptual development. This raises the question of whether we might characterize, in postcolonial fashion, disease ecology, and other studies of parasitism, as successful settler colonial or dominion science. (shrink)

Metaseiulus occidentalis is a representative of an important family of mites (Arthropoda: Chelicerata: Acari: Phytoseiidae) that are effective predators of pest mites in agricultural crops around the world. Like many arthropods, this mite contains multiple genomes, including the genomes of several microbial symbionts as well as its own mitochondrial and nuclear genomes. The mitochondrial genome is “mitey” large at 25 kb, due to duplication and triplication of genes. By contrast, the nuclear genome is “mitey” small at 88 Mb. This (...) mite has a parahaploid genetic system, tolerates inbreeding, and has a haploid chromosome number of 3. This predator was genetically improved for use in agriculture by developing strains that lacked the ability to overwinter in diapause or were resistant to multiple pesticides, and can be genetically modified using recombinant DNA methods. Sequencing the nuclear genome would provide useful insights that could enhance genetic improvement programs that would result in improved pest management, could provide genes needed to resolve the evolutionary relationships of this family, and could serve as a model for understanding the evolution and genetics of chelicerate arthropod predators. (shrink)

Consumers are increasingly aware of the health- and safety-related implications of the food which they can buy in the market. At the same time, households have become more aware of their environmental responsibilities. Regarding the production of food, a crucial and multifunctional role is played by agriculture. The way vegetables, fruits, and other crops are grown and how livestock is raised has an impact on the environment and landscape. Operations performed by farmers, such as water management, can be dangerous (...) for the soil and the whole ecosystem. Consequently, there is a search for natural ways of sustaining the impact of agriculture on the environment. In this context, one of the most popular ideas is organic agriculture. In the literature on the subject, there are many concepts that some authors consider to be synonymous even as others argue that these terms are not interchangeable. There is, for example, "organic agriculture," "alternative agriculture," "sustainable agriculture," "ecological agriculture," "biological agriculture," "niche farming," "community-supported agriculture," and "integrated pest management." Very often, techniques and products related to organic agriculture are described by marketing experts with the use of abbreviations such as "bio" and "eco." Products with such markings and labels are increasingly popular in stores that often give them separate shelves for their sale. Despite the higher price compared to conventional products, they are increasingly sought by consumers. The entry examines the various impacts of organic agriculture with a view to these trends. (shrink)

The use of pesticides is one of the more controversial of public issues. This is so because their very widespread use produces immediate benefits to a small section of society, the agricultural industry, while the long term risks are shared by society as a whole. This discussion focuses on the contrast between benefits and risks and outlines some of the long term ecological problems that have resulted from the overuse, misuse, and injudicious use of pesticides. Detailed discussion is provided for (...) such ecological disasters as insect pest resistance to pesticides, pest resurgences and the development of secondary pests; together with contamination of food webs and general ecotoxicity. It is concluded that implementation of integrated pest management (IPM) tactics provides the only practical answer to the manifold problems arising from the sole reliance on pesticides for pest control. IPM provides an ecological oriented strategy for pest control that can maximize the benefits of pesticide use and minimize the risks. (shrink)

What kinds of ethical considerations, if any, are relevant to research, management, or conservation efforts involving insects? What limits might be appropriate for those actions? These are questions we ask as members of a profession—one that’s devoted to the study of certain organisms. We probably won’t make any progress as a discipline by beginning the way philosophers generally do: namely, by trying to assess whether insects have intrinsic value; that is, whether they have value even when we don’t value (...) them. It is better, we submit, to reflect more carefully on our own values and practices, paying special attention to the role that insects play in our scientific endeavors, whether those endeavors are basic research, vector control, integrated pest management, or insect conservation and biodiversity assessment. -/- From a professional standpoint, the goals of entomologists center around learning about, working with, and responding to insects. Because insects are living organisms, the tie that binds the many strands of entomology together, we should affirm the significant role that insects play in everyday life and encourage examination of how to relate to them. (shrink)

The rationale for pesticide use in agriculture is that costs associated with pesticide pollution are to be justified by its benefits, but this is not so obvious. Valuing the benefits by simple economic analysis has increased pesticide use in agriculture and consequently produced pesticide-induced “public ills.” This paper attempts to explore the research gaps of the economic and social consequences of pesticide use in developing countries, particularly with an example of Nepal. We argue that although the negative sides of agricultural (...) development, for example- soil, water, and air pollution; pest resistance and resurgence; bioaccumulation, bio-magnification; and loss of biodiversity and ecosystem resilience caused by the use of pesticides in agriculture, are “developmental problems” and are “unintentional,” the magnitude may be increased by undervaluing the problems in the analysis of its economic returns. Despite continuous effort for holistic system analyses for studying complex phenomena like pesticides impacts, the development within the academic science has proceeded in the opposite direction that might have accelerated marginalization of the third world subsistence agricultural communities. We hypothesize that, if these adversities are realized and accounted for, the benefits from the current use of pesticides could be outweighed by the costs of pollution and ill human health. This paper also illustrates different pathways and mechanisms for marginalization. In view of potential and overall negative impacts of pesticide use, we recommend alternative ways of controlling pests such as community integrated pest management (IPM) along with education and training activities. Such measures are likely to reduce the health and environmental costs of pesticide pollution, and also enhance the capabilities of third world agricultural communities in terms of knowledge, decision making, innovation, and policy change. (shrink)