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Books > Professional & Technical > Agriculture & farming > Pest control

Ecological Management of Agricultural Weeds (Hardcover): Matt Liebman, Charles L. Mohler, Charles P Staver Ecological Management of Agricultural Weeds (Hardcover)
Matt Liebman, Charles L. Mohler, Charles P Staver
R3,100 Discovery Miles 31 000 Ships in 7 - 11 working days

This volume provides principles and practices for ecologically based weed management in a wide range of temperate and tropical farming systems. The authors describe how tillage and cultivation practices, manipulations of soil conditions, competitive cultivars, crop diversification, grazing livestock, arthropod and microbial biocontrol agents, and other factors can be used to reduce weed germination, growth, competitive ability, reproduction, and dispersal. Special attention is given to the evolutionary challenges that weeds pose and the roles that farmers can play in the development of new weed management strategies.

Nature Wars - People vs. Pests (Paperback, New edition): Mark L. Winston Nature Wars - People vs. Pests (Paperback, New edition)
Mark L. Winston
R386 Discovery Miles 3 860 Ships in 7 - 11 working days

On our side, a vast arsenal of chemical pesticides. On their side? They don't have a side, the pests who must do nature's bidding. This is our war, and should we win it, ours would be a sorry planet. With disturbing news from the front, "Nature Wars" sounds the alarm against our dangerous tactics for controlling the pests that are an annoying but integral part of our world.

Thirty years after "Silent Spring" woke us to the devastation wrought by DDT, chemical pesticides are as pervasive as ever, deployed at a rate of 4 pounds a year for every man, woman, and child in this country. This ongoing commitment to pesticides, Mark Winston argues, reflects our sense of place in nature: embattled, beleaguered, driven to aggression. His book, as sensible as it is wise, seeks to change this mindset, to show how a more measured and discriminating approach to pests, one based on management rather than eradication, might serve us and the natural world far better than our ill-fated all-out war.

Winston backs up this approach with a full battery of case studies that take us from lawns and kitchens to farms and orchards, from insects and weeds to rats and coyotes. Here we see the complex political, biological, economic, social, and personal interactions that lie behind each pest management decision. Against this background Winston considers diverse instances of past pest management that reveal a consistent pattern of mistakes and problems--and lead to realistic, workable proposals for reducing pesticide use.

A compelling book about ethics and choices, "Nature Wars" shows us the difference between protecting ourselves from real pests and poisoning ourselves and the planet. It turns usfrom our war on nature to our task as stewards of the environment.

Dynamics of Weed Populations (Hardcover): Roger Cousens, Martin Mortimer Dynamics of Weed Populations (Hardcover)
Roger Cousens, Martin Mortimer
R3,296 Discovery Miles 32 960 Ships in 7 - 11 working days

What are the ecological attributes of weeds that confer the ability to interfere with human activities? Roger Cousens and Martin Mortimer place weed management within an ecological context, with the focus on the manipulation of population size. The dynamics of abundance and spatial distribution are considered at both geographic and local scales. The basic processes of dispersal, reproduction and mortality are described, together with the factors that influence them. Management is shown to modify patterns of behaviour that are intrinsic to populations. Attention is given to the evolution and management of resistance to herbicides. This book provides weed science with the conceptual basis that has previously been lacking. It also gives ecologists access to the extensive database on the population ecology of weeds.

Dynamics of Weed Populations (Paperback): Roger Cousens, Martin Mortimer Dynamics of Weed Populations (Paperback)
Roger Cousens, Martin Mortimer
R1,596 Discovery Miles 15 960 Ships in 7 - 11 working days

What are the ecological attributes of weeds that confer the ability to interfere with human activities? Roger Cousens and Martin Mortimer place weed management within an ecological context, with the focus on the manipulation of population size. The dynamics of abundance and spatial distribution are considered at both geographic and local scales. The basic processes of dispersal, reproduction and mortality are described, together with the factors that influence them. Management is shown to modify patterns of behaviour that are intrinsic to populations. Attention is given to the evolution and management of resistance to herbicides. This book provides weed science with the conceptual basis that has previously been lacking. It also gives ecologists access to the extensive database on the population ecology of weeds.

Pest and Vector Control (Paperback, New): H.F.Van Emden, M.W. Service Pest and Vector Control (Paperback, New)
H.F.Van Emden, M.W. Service
R1,589 Discovery Miles 15 890 Ships in 7 - 11 working days

As ravagers of crops and carriers of diseases affecting plants, humans and animals, insects present a challenge to a growing human population. In Pest and Vector Control, H.F. van Emden and Mike Service describe the available options for meeting this challenge, discussing their relative advantages, disadvantages and future potential. Methods such as chemical and biological control, host tolerance and resistance are discussed, intergrating--often for the first time--information and experience from the agricultural and medical/veterinary fields. Chemical control is seen as a major component of insect control, both now and in the future, but this is balanced with an extensive account of associated problems, especially the development of pesticide-tolerant populations. The authors are leading authorities in their respective fields and two of the best known entomologists of their generation.

Natural Remedies for Pest, Disease and Weed Control (Paperback): Chukwuebuka Egbuna, Barbara Sawicka Natural Remedies for Pest, Disease and Weed Control (Paperback)
Chukwuebuka Egbuna, Barbara Sawicka
R2,442 Discovery Miles 24 420 Out of stock

Natural Remedies for Pest, Disease and Weed Control presents alternative solutions in the form of eco-friendly, natural remedies. Written by senior researchers and professionals with many years of experience from diverse fields in biopesticides, the book presents scientific information on novel plant families with pesticidal properties and their formulations. It also covers chapters on microbial pest control and control of weeds by allelopathic compounds. This book will be invaluable to plant pathologists, agrochemists, plant biochemists, botanists, environmental chemists and farmers, as well as undergraduate and postgraduate students.

Future Harvest - Pesticide-free Farming (Hardcover): Jim Bender Future Harvest - Pesticide-free Farming (Hardcover)
Jim Bender
R957 Discovery Miles 9 570 Out of stock

From his own farming experience in Weeping Water, Nebraska, Jim Bender addresses in "Future Harvest" the crucial issues involved in developing a viable commercial pesticide-free farm with emphasis upon soil and water conservation. He examines the context of contemporary alternative agriculture, provides a rationale for the goal of complete freedom from pesticides, and offers a detailed description of practical steps for farmers wishing to do the same.

Bender's comparative analysis of alternative and conventional farming systems focuses on convenience, management, conservation, productivity, and economic performance. He also identifies and responds to several central arguments against pesticide-free farming. A central objective throughout the book is to demonstrate both the practical and the conceptual plausibility of pesticide-free farming.

The author also addresses the crucial role of livestock in pesticide-free farming. The discussion combines practical and theoretical topics, such as whether alternative farming would require too much livestock.

Die Tierischen Schadlinge Unserer Gewachshauspflanzen, Ihre Lebensweise Und Bekampfung (German, Hardcover): E Fromming, H-P... Die Tierischen Schadlinge Unserer Gewachshauspflanzen, Ihre Lebensweise Und Bekampfung (German, Hardcover)
E Fromming, H-P Plate
R1,061 Discovery Miles 10 610 Out of stock
Illustrations of Quarantine Pests for Europe (Paperback): I.M. Smith, Anne Roy Illustrations of Quarantine Pests for Europe (Paperback)
I.M. Smith, Anne Roy
R2,095 Discovery Miles 20 950 Out of stock

This book is a companion volume to "Quarantine Pests for Europe," published originally in 1992 by the European and Mediterranean Plant Protection Organization (EPPO) and CAB INTERNATIONAL (CABI) for the European Union. The previous book provides information on identity, hosts, geographical distribution, biology, detection and identification, means of movement and dispersal, pest significance, phytosanitary measures and a bibliography for all the quarantine pests listed by EPPO and the European Union, but does not contain any illustrations. A second edition of "Quarantine Pests for Europe" will be published at the end of 1996. The present book contains approximately 400 color illustrations, most of them new in relation to the very first illustrations of the EPPO Data Sheets which appeared in "Bulletin OEPP/EPPO Bulletin" in the 1980s. The book covers most of the quarantine pests listed by EPPO and the European Union, including those which have been added to the quarantine lists since 1992. Thus it will be compatible with the second edition of the volume of text data sheets. The quarantine pests concerned are either not present in the Euro-Mediterranean region, or only present to a limited extent and submitted to official control measures. The sequence of presentation is as for the text volume, (i.e. insects, nematodes, fungi, bacteria, viruses, parasitic plants). Within each chapter, the pest illustrations appear in alphabetical order. An index including scientific names and synonyms is included at the end of the book. Accompanying text is presented in both English and French. Although it has not been possible to illustrate every listed quarantine pest, this book provides a unique collection that will help phytosanitary inspectors, plant health officers, and others working in the field of plant quarantine, or plant protection in general, to recognize and identify quarantine pests. The book is published by EPPO in association with CABI, and is available for sale exclusively through CABI.

Immunology of Host-Ectoparasitic Arthropod Relationships (Hardcover): Stephen K. Wikel Immunology of Host-Ectoparasitic Arthropod Relationships (Hardcover)
Stephen K. Wikel
R3,343 Discovery Miles 33 430 Out of stock

Host immune responses to ectoparasitic arthropods are critical elements in determining the nature of animal host-arthropod relationships, including transmission of vector-borne pathogens. This is the first book to provide a comprehensive analysis for both the student and specialist of the emerging field of immunoentomology . Our fundamental understanding of this topic has increased dramatically in recent years. Chapters prepared by specialists from the USA, UK and Australia provide comprehensive reviews of key subjects. The book concludes with a consideration of the application of fundamental knowledge about the immunology of the host-arthropod interface to the development of anti-arthropod vaccines. It is aimed particularly at medical and veterinary entomologists and acarologists, as well as immunologists."

Pest Control Simplified for Everyone - Kill, Repel, or Mitigate Pests with or Without Pesticides (Hardcover): Danny LeDoux Pest Control Simplified for Everyone - Kill, Repel, or Mitigate Pests with or Without Pesticides (Hardcover)
Danny LeDoux
R1,302 Discovery Miles 13 020 Out of stock
Pesticide Profiles - Toxicity, Environmental Impact, and Fate (Hardcover): Michael A. Kamrin Pesticide Profiles - Toxicity, Environmental Impact, and Fate (Hardcover)
Michael A. Kamrin
R5,570 Discovery Miles 55 700 Out of stock

Pesticide Profiles: Toxicity, Environmental Impact, and Fate is like three books in one-it is a profile containing specific information about 137 pesticides, a primer of environmental toxicology, and an extensive trade name index. Profiles of each pesticide contain regulatory information, toxicity assessments, environmental fate data, physical properties, and acceptable exposure limit values. What these values and data mean in terms of human toxicity is clearly interpreted as well. The book also describes the meaning of carcinogenicity and how it is assessed in non-technical terms the non-expert can understand. Readers with a technical background are provided with the data to make their own judgments.
In addition to information about specific pesticides, there are sections on general classes of pesticides, such as organophosphates. This information allows readers to make inferences about any pesticide in a class, even if a profile is not provided. Pesticide Profiles: Toxicity, Environmental Impact, and Fate goes beyond the usual listings of toxicity values or environmental half-lives to offer a broad understanding to readers of various backgrounds and interests.

Heliothine Moths of Australia - A Reference Guide to Pest Bollworms and Related Noctuid Groups (Hardcover, Illustrated Ed):... Heliothine Moths of Australia - A Reference Guide to Pest Bollworms and Related Noctuid Groups (Hardcover, Illustrated Ed)
Marcus Matthews
R4,770 Discovery Miles 47 700 Out of stock

Heliothine moths are major agricultural pests worldwide attacking a wide range of food and fibre crops. The direct costs to farmers of crop damage and control measures are enormous - Helicoverpa and Heliothis species account for billions of dollars lost worldwide each year. This book is a base-line resource for research into new Helicoverpa/Heliothis control methods. Written for the non-taxonomist, purely taxonomic information is separated from that more widely required by most researchers. This work is relevant to everyone involved in Helicoverpa/Heliothis control. General, concise summaries of the agricultural importance of heliothines, their biology, systematic, and morphology are given. An up-to-date summary of heliothine phylogeny - based on morphological and molecular information - provides a framework for organizing and interpreting biological information about all heliothine moths and has worldwide relevance. The 38 Australian heliothine species are detailed with identification information and individual species treatments. All species are illustrated in color, and there are many color photographs of immature stages and live adults. Additionally, there are 351 black and white images. Nomenclatural information of interest to taxonomists appears in an appendix, and includes a full checklist and detailed information of type specimens. A CD-ROM packaged with the book contains a searchable database of all 14,800 Australian heliothine specimens examined; this is a major research tool in itself. The CD-ROM also carries nomenclatural information suitable for loading into bioinformatics packages, and images of type specimens.

Sustainable Management of Invasive Pests in Africa (Hardcover, 1st ed. 2020): Saliou Niassy, Sunday Ekesi, Lorna Migiro,... Sustainable Management of Invasive Pests in Africa (Hardcover, 1st ed. 2020)
Saliou Niassy, Sunday Ekesi, Lorna Migiro, Washington Otieno
R3,434 Discovery Miles 34 340 Out of stock

Invasive species, generally, affect economically important crops, thus affecting the livelihoods of millions of people along crop value chains. Typically, invasive species have high migratory capabilities and, because of plant material exchanges made during trade, they cannot be contained by one country. Usually, African countries react after a pest has invaded and established itself in the country, making the cost of mitigating the pest even more expensive. This book presents a pan-African view of the impacts of invasive insect pests on agriculture and of how invasive species impact on productivity in Africa. It not only describes their importance, but also presents a diversity of research findings in the field, ranging from the use of early warning and monitoring systems for quarantine purposes, agricultural extension, all the way to control strategies. The IPM arsenal presented in this book includes the use of botanical bioactive compounds, semiochemicals, resistant varieties, biological control agents such as entomopathogens, endophytes, predators, and natural enemies. Aspects of technology transfer strategies, regional coordination, and farmers' perceptions have not been overlooked, because these affect the adoption of mitigation strategies. The book also presents measures that would help agricultural research services to estimate the damage and take actions for preparedness and readiness to face invasive insect pests. This starts with a basic knowledge of taxonomy to enable concerned persons to describe the insects and the vast inventory of affected crops. Physiological and ecological aspects of invasive pests are strongly highlighted to strengthen Integrated Pest Management Strategies. The threat of invasive species will remain permanent; therefore, the book encourages knowledge exchange and collaboration between researchers and scientists on the continent, while encouraging the establishment of a platform or a fund for preparedness and rapid response.

Pests of Field Crops and Pastures - Identification and Control (Hardcover): P. T. Bailey Pests of Field Crops and Pastures - Identification and Control (Hardcover)
P. T. Bailey
R4,425 Discovery Miles 44 250 Out of stock

This comprehensive handbook on economic entomology for Australian field crops and pastures is the first of its kind. It encompasses pests and beneficial insects as well as allied forms of importance in Australian agriculture.Organized by commodities such as cereals, sugar and tropical pasture legumes it examines all the pest species for a particular commodity across Australia. Identification, distribution, damage, host range, biology, risk period and monitoring techniques are described for each entry, accompanied by useful illustrations. The book also describes introduced biological control agents that effectively control crop pests. "Pests of Field Crops and Pastures" will be a useful tool in crop management for progressive farmers, agronomists, agricultural consultants and academics alike. FeaturesCovers all significant field crops, legumes and grasses in AustraliaTables show the various product growth periods at which the insect is most activeProfusely illustrated with colour photographs and line drawings"

Die Spuren Der Gesundheits- Und Wohnungsschadlinge in Ihrer Bedeutung Fur Schadlingskunde Und Schadlingsbekampfung (German,... Die Spuren Der Gesundheits- Und Wohnungsschadlinge in Ihrer Bedeutung Fur Schadlingskunde Und Schadlingsbekampfung (German, Paperback)
Heinrich Kemper
R860 Discovery Miles 8 600 Out of stock
Outwitting Deer - 101 Truly Ingenious Methods and Proven Techniques to Prevent Deer from Devouring Your Garden and Destroying... Outwitting Deer - 101 Truly Ingenious Methods and Proven Techniques to Prevent Deer from Devouring Your Garden and Destroying Your Yard (Paperback)
Bill Adler
R312 R267 Discovery Miles 2 670 Save R45 (14%) Out of stock

I once believed all those myths about Bambi. I saw the movie, Adler admits. Now a homeowner and a gardener, he has changed his tune. 'Deer are a scourge. They invade our yards and eat our precious plants, shrubs, fruits, and vegetables.' They carry dangerous diseases. And the worst part is, they're nearly impossible to keep out of backyard gardens. As adaptable as squirrels, deer will jump fences, trample flowers, even enter your house - all in search of a good meal. Adler offers over one hundred truly ingenious methods for outwitting these voracious ungulates. With Outwitting Deer, you'll learn how to: identify deer presence in your yard; make homemade repellents; buy commercial deterrents that work; landscape your garden to repel deer; protect yourself and your family from Lyme disease; prevent deer-vehicle collisions; get involved with population-management techniques; develop long-term, successful anti-deer strategies; and more. Armed with Outwitting Deer, you will keep your gardens and backyards safe from the armies of these lovely but ravenous animals. A must for all vegetable and flower gardeners, suburban homeowners, rural residents, and anyone with a yard at stake. (51/2 X 81/4, 192 pages, b&w photos, charts)

Peroxidizing Herbicides (Hardcover, illustrated edition): Peter Beoger, Ko Wakabayashi Peroxidizing Herbicides (Hardcover, illustrated edition)
Peter Beoger, Ko Wakabayashi
R2,184 Discovery Miles 21 840 Out of stock

Experts in herbicide research and development - chemists and plant physiologists -, have written 15 chapters that review all aspects pertinent to peroxidizing herbicides, compounds of topical interest since extremely low use rates ensure high environmental safety. Topics covered include structure-activity relationships, relevant patent literature, preparative methods, modes of action, greenhouse screening, laboratory assays, plant pigment biochemistry, and enzymology of the decisive target enzyme of this class of herbicides. This comprehensive review will be welcomed as a unique and timely compilation of the current status of peroxidizing herbicide research and development. It will be of interest to professional chemists and biologists in agrochemical companies, universities and agricultural colleges.

Impact of Arbuscular Mycorrhizas on Sustainable Agriculture and Natural Ecosystems (Hardcover): Silvio Gianinazzi, Hannes... Impact of Arbuscular Mycorrhizas on Sustainable Agriculture and Natural Ecosystems (Hardcover)
Silvio Gianinazzi, Hannes Schuepp
R2,137 Discovery Miles 21 370 Out of stock

This book deals with the most widespread of root symbiosis, arbuscular mycorrhizas, an essential component of soil/plant systems occurring in the majority of plant species in natural agro-ecosystems. It is intended to aid the environmental researcher in finding relevant methods quickly, and as a general reference work it will well serve field ecologists, laboratory biologists and other workers in plant biology and soil microbiology. The volume contains the most recent advances in (I) the field of the development of biomolecular methods adapted to arbuscular mycorrhizal fungi; (II) the promotion of innovative ecological research which considers biodiversity, in order to better understand the impact of arbuscular mycorrhizas in sustainable agriculture and natural ecosystems; (III) elucidating the role of arbuscular mycorrhizas in plant development and root morphology; and (IV) defining the cellular and molecular basis of plant-fungus exchanges. An article concerning The European Bank of Glomales, an essential tool for efficient international and interdisciplinary collaboration, is also included.

New Strategies in Locust Control (Hardcover, 1997 ed.): S. Krall, R. Peveling, B.D. Diallo New Strategies in Locust Control (Hardcover, 1997 ed.)
S. Krall, R. Peveling, B.D. Diallo
R2,270 Discovery Miles 22 700 Out of stock

In the late eighties large-scale control operations were carried out to control a major desert locust upsurge in Africa. For the first time since the banning of organochlorine pesticides these operations relied mainly on non-persistent pesticides such as organophosphates and pyrethroids. The amount of pesticides sprayed and the area covered were probably the highest in the history of locust control and raised criticism with respect to efficacy, economic viability and environmental impact.

As a consequence, applied research into the problem was intensified, both at the national and the international level, with the goal of finding new and environmentally sound approaches and solutions to locust and grasshopper control. Emphasis was laid on developing new control agents and techniques.

Diseases of Vegetable Crops in Australia (Hardcover, Revised edition): Dennis Persley, Tony Cooke, Susan House Diseases of Vegetable Crops in Australia (Hardcover, Revised edition)
Dennis Persley, Tony Cooke, Susan House
R3,394 Discovery Miles 33 940 Out of stock

"Diseases of Vegetable Crops in Australia" provides a diagnostic guide and a key reference for diseases affecting vegetable crops in Australia.This is an extensively revised and expanded edition of a previous publication that was a standard reference for the Australian vegetable industry. Authors from across Australia provide essential information about the important diseases affecting most vegetables grown across Australia s diverse horticultural production areas.The book includes an account of the causes of plant diseases and the principles underlying their control. It provides an overview of important diseases common to many Australian vegetable crops. Causal pathogens, symptoms, source of infection, how the diseases are spread and recommended management are described for 36 major and specialty crops. Special reference is made to exoticdiseases that are biosecurity threats to Australian vegetable production.The text is supported by quality color images to help growers diagnose diseases.This handbook is for growers, their consultants and managers, horticulturists, plant pathologists, plant protection diagnosticians, integrated pest management specialists, educators, students and agribusiness representatives, as well as the enthusiastic home gardener and hobby farmer.Features Written in a straightforward style with a minimum of scientific terms Introductory chapter outlines the causes of diseases and principles of management Each disease is extensively illustrated with high quality color photographs. Over 190 pages of color plates Contains a comprehensive glossary and provides up-to-date sources of further information"

Tropical Fruit Pests and Pollinators - Biology, Economic Importance, Natural Enemies and Control (Hardcover): Jorge Pena,... Tropical Fruit Pests and Pollinators - Biology, Economic Importance, Natural Enemies and Control (Hardcover)
Jorge Pena, Jennifer Sharp, Manes Wysoki
R3,795 Discovery Miles 37 950 Out of stock

Insect and other pests cause major economic damage on fruit crops in the tropics. However, some insects are beneficial and have a role in pollinating flowers and thus enabling fruit set. This book, written by authors from around the world, reviews these injurious and beneficial organisms and how they might be controlled to enhance fruit production and quality.

Wetland Weeds (Paperback): Nick Romanowski Wetland Weeds (Paperback)
Nick Romanowski
R849 Discovery Miles 8 490 Out of stock

This comprehensive guide to wetland weeds covers both native and introduced species, ranging from minor or localized environmental problems to those that should not be tolerated in any situation. The author takes a pragmatic approach to weed control, recognizing that some weeds may not be possible to eradicate, and emphasizing the need to assess the extent and future potential of any infestation before taking action. Weed control should be planned in the context of the overall management goals for any type of wetland, the types of habitat weeds provide or overrun, and whether they can be replaced successfully with more appropriate plants. A range of strategies for controlling wetland weeds are considered. More than 130 species of established weeds are included with information on their origins, nutrient responses, environmental effects, habitat values, prospects for containment or eradication, and even culinary uses. Other sections look at native plants as weeds, including a number of species of uncertain origins, and potential weeds still being legally sold. KEY FEATURES * Contains a comprehensive compendium of over 130 weeds with full color photographs * Considers a wide range of strategies for controlling wetland weeds, including biological control and prevention * Covers introduced as well as native weed species * Takes a pragmatic approach to managing weeds depending on the threat they pose to the environment

Disease Transmission by Insects - Its Discovery and 90 Years of Effort to Prevent it (Paperback, Softcover reprint of the... Disease Transmission by Insects - Its Discovery and 90 Years of Effort to Prevent it (Paperback, Softcover reprint of the original 1st ed. 1993)
James Busvine
R3,001 Discovery Miles 30 010 Ships in 7 - 11 working days

About 100 years ago, it was dicovered that insects transmit grave, mainly tropical diseases - very much to the astonishment of the physicians of that time, who saw this as a new, possibly easy, way of eradicating the diseases by exterminating the vectors. For some years, DDT and other then new insecticides achieved great improvements, but subsequently serious setbacks emerged: insecticide-resistance and anxiety about toxicity to man and animals. In the past twenty years, serious efforts have been made tofind alternatives, with varying degrees of success.

The Use and Fate of Pesticides in Vegetable-Based Agro-Ecosystems in Ghana (Paperback): William Joseph Ntow The Use and Fate of Pesticides in Vegetable-Based Agro-Ecosystems in Ghana (Paperback)
William Joseph Ntow
R1,521 Discovery Miles 15 210 Ships in 10 - 15 working days

The Use and Fate of Pesticides in Vegetable-based Agro-ecosystems in Ghana reviews current knowledge on pesticides use in vegetable farming in Ghana and establishes the fate of pesticides in situ in tropical vegetable-based agro-ecosystems as well as their environmental and public health impacts on selected population groups. A field survey showed that vegetable farmers often spray pesticides on prophylactic basis due to lack of information. Although some farmers may be aware of pesticide hazards, adequate protection is hardly taken to minimize risks. About 70% of exposed farmers had a reduction of 30% or more in whole blood acetylcholinesterase activity. About 95% of the farmers interviewed reported symptoms attributable to pesticide exposure. Water, waterbed sediment, and vegetable crops were checked for residues of the pesticides monitored on the farmers? fields. Residues detected in water and waterbed sediment indicated that these have come from runoff from vegetable fields and that the measured levels were transient. Pesticide residue levels detected in five vegetable crop types (tomato, cabbage, pepper, onion, and eggplants) were correlated to the minimal risk levels (MRLs) set by the United States Agency for Toxic Substances and Disease Registry (ATSDR). Mean intakes of residues by 22- to 75-year old adult farmers were found to be low and did not seem to be associated with health risk. Data on persistent pesticide residues in farmers? breast milk and blood serum indicated the presence of DDTs, dieldrin, HCB, and HCHs. When daily intakes of DDTs and HCHs to infants through breastfeeding were estimated, some farmers accumulated these compounds in breast milk above the threshold for adverse effects, which raise concerns on children health. Evidence was found for persistence of isomers of endosulfan and its sulfate metabolite in tomato cropped soil and plant tissues. However, the residue concentration in tomato fruits decreased to a level below the Codex MRL given a two-week pre-harvest interval during which no application of the chemical is done. The publication concludes that successful action to reduce the negative impact of pesticides requires sustained, low cost, and well-targeted training interventions.

Students and scientists in the fields of environmental chemistry and/or science, farmers, agricultural extension officers and environmental and health regulatory agencies will find this book very useful.

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