Tài nguyên được gắn thẻ với: Biological Control
62 đề mục được tìm thấy (Hiển thị 1 - 10) Tiếp theo
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01-01-1990 This book attempts, at least partially, to overcome these obstacles to information flow, and to present a specific subject within our scope in a simple and understandable, although by no means complete way. The intention is to make existing knowledge more easily accessible and to present it in a...
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19-11-1986 Integrated pest management - Nicaragua Insecticial plants Biological control Do small farmers have effective alternatives to chemical pesticides Natural crop protection based on local resources Natural enemies wanter Mexican farmers sell organic coffee
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01-01-2002 Modalidades de los Servicios que prestan IDEAS a traves del Sub programa de Agricultura Sostenible. Desarrollo de un Plan Completo de Capacitacion. Se trata del desarrollo de modulos teoricos - practicos que se lleva a cabo en las instalaciones de la Escuela Campesina de Agricultura Sostenible,...
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In this book you can learn about means of eliminating or drastically decreasing insect pests by 'biological control," that is, through the introduction of their natural enemies--other insects which act as parasites or predators and, in sufficient numbers, will destroy the enemy--or, by the...
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From a foundation in the methods and success of biological control (Chapter 1), its implementation and cost (Chapter 2) and its probability of success (Chapter 3), we have developed in this chapter specific priorities for biological control programmes in the major crops of developing countries....
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Plants and animals produce many agents which can control life processes in insects or in other plants. Among them are attractants in insects, repellants in arthropods, insecticides in pyrethrum, in turnips, and in cruciferous crops, insect toxicants in crystalliferous bacteria, biologically...
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01-01-2000 At long last, you can grow your tomatoes and eat them too with the help of this primer on gardening with fewer chemicals. Gardeners and homeowners alike need simple and safe ways to stop unwanted pests and plant diseases while allowing nature to flourish. A companion to the highly successful DEAD...
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Excerpt from Neem's Potential in Pest Management Programs: Proceedings of the Usda Neem Workshop, Beltsville, Maryland, April 16-17, 1990 In 1974-75, a group at Columbia University in New York reported the chemical identification of portions of the azadirachtin and salannin molecules responsible...
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In this concise and fascinating account, Paul DeBach traces the historical background of biological control and examines in detail some of the most famous examples of the discovery abroad of new natural enemies and their importation into the US and elsewhere to achieve successful biological...
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A complete garden reference on controlling insects and plant diseases without pesticides. Over 800 garden problems corrected, scores of garden plants considered, and many identifying drawings and helpful photographs. 2 Copies