Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"insect pest control"”.
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Benefit-cost analysis as applied to insect pest control programs
… the social value of on-going and proposed forest insect control programs is presented. Chapter two briefly discusses some economic concepts used in benefit-cost analysis. Those discussed are: consumer's surplus, social discount rate, shadow prices, characteristics of social costs, characteristics …
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UNDERSTANDING NON-TARGET INSECTICIDE IMPACTS AND OPPORTUNITIES FOR BIOLOGICAL CONTROL IN FIELD CORN
Natural enemies can be important regulators of pest populations, replacing chemical pesticides, or where compatible complementing them. To effectively incorporate these biological control services into crop production, we need to understand how pesticides and other management practices impact …
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LOCAL AND LANDSCAPE DRIVERS OF BIOLOGICAL PEST CONTROL IN AGRICULTURAL SYSTEMS
Biological insect pest control by natural enemies is an important component of sustainable crop production. To capitalize on the potential benefits of biological control, however, we need a clear understanding of the factors underpinning the biological and ecological relationships between pests and …
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Inactivation of Helicoverpa armigera nucleopolyhedrovirus on chickpea, Cicer arietinum L.
Insect specific viruses like nucleopolyhedrosisvirus (NPV) can provide an alternative and effective insect pest control compared to conventional chemicals; however, on certain crops like chickpea efficacy of the virus is limited. Previous studies have demonstrated that inactivation on chickpea was …
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Integration of High Residue/No-till and Farmscaping Systems in Organic Production of Broccoli
… to the improvement of soil quality and weed control. Although, during transition from chemical to organic cover-cropping production, especially with no-till systems, reduction of nitrogen availability to the main crop and increase in weed and pest pressure may occur. In 2004-2005, summer and …
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The soil ecology of Serratia entomophila, A bacterial pathogen of the New Zealand grass grub, Costelytra zealandica (White)
… currently being developed as a biological control agent for the New Zealand grass grub Costelytra zealandica (White) (Coleoptera: Scarabaeidae). The bacterium causes amber disease; the larvae stop feeding and develop a characteristic amber coloration before death. Insect pest control by …
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Field assessment of a sex attractant for control of grass grub, Costelytra zealandica (White)
During the 1973 flight season of the grass grub beetle, Coatelytra zealandica (White), an attempt was made to suppress populations on small scale field plots by mass trapping male beetles using simple water traps baited with the synthetic sex attractant, Durez 12687. Populations were monitored …