Biological control of rice pests

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Date Issued
1988
Language
en
Type
News Item
Accessibility
Open Access
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Citation
CTA. 1988. Biological control of rice pests. Spore 13. CTA, Wageningen, The Netherlands.
Permanent link to cite or share this item: https://hdl.handle.net/10568/44786
External link to download this item: http://collections.infocollections.org/ukedu/en/d/Jcta13e/
Abstract/Description
Research aimed at developing fungal insecticides to combat the brown planthopper, Nilaparvata lugens, and the Malayan rice bug, Scotinophara coarctata, is being conducted at the International Rice Research Institute (IRRI) in the Philippines....
Notes
Research aimed at developing fungal insecticides to combat the brown planthopper, Nilaparvata lugens, and the Malayan rice bug, Scotinophara coarctata, is being conducted at the International Rice Research Institute (IRRI) in the Philippines. Conventional chemical insecticides used against these pests are expensive, toxic, and often lead to the build-up of dangerous secondary infestations as the insecticides also remove beneficial predatory insects. Therefore the research is aimed at exploiting naturally occurring fungal epidemics that attack these pests in order to produce a safe and highly specific insecticide. The fungi can be isolated on artificial media and mass produced. Already good yields are being obtained from simple bubble fermenters, and scientists estimate that the cost of the fungi produced in these small units is almost equal to the cost of carbamate insecticides in much of Asia. At present, fungal conidia are generally applied using conventional spraying equipment, but researchers are hoping to simplify application by using dry marcescent mycelium instead of conidial products. For more details, contact: Entomology Department IRRI P O Box 933 Manila PHILIPPINES
Subjects
CROPS;
Organizations Affiliated to the Authors
Technical Centre for Agricultural and Rural Cooperation
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