ធនធាន ដាក់ស្លាក: Insect Resistence
4 items found (Showing 1 - 4)
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01 មករា 1981 It is concluded that interplanting may influence insect populations. However, some insects may not be repelled by interplantings but may in fact be attracted to them. It must not be assumed that because a plant species smells aromatic to humans that it will be effective in pest control....
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01 មករា 2004 Part of the NOFA Guides. Includes information on: Basic concepts of pest control (host susceptibility, soil health, genetic resistance, ecosystem factors) Practical approaches (crop cultural practices, rescue treatments, special section on mammals and birds, food safety) Farm design for pest...
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01 មករា 1978 This book reveals the vast array of troubles which can affect the vegetable plot. Some of them are pests and diseases, but not all--split tomatoes, blown sprouts and bolted onions do not appear in the pest charts but they are nevertheless important vegetable troubles. The purpose of the guide is...
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01 មករា 1993 This manual is intended to be an educational tool, providing the reader with the necessary information to appreciate the concept and practice of biological control of insects. For those with little training in biological control, the manual provides the fundamentals; descriptions of the natural...