EFFECT OF CERTAIN NATURAL PLANT EXTRACTS ON ' THE RICE STEM BORER, CHILD AGAMEMNON BLES. AND RICE WHORL MAGGOT, HYDRELL1A PROSTERNALIS DEEMING INFESTATION

Document Type : Original Article

Authors

Plant Protection Research Institute, Agricultural Research Centre, Dokki, Giza, Egypt.

Abstract

Six water plant extracts compared to Furadan granules 10% were applied to rice in 1991 and 1992 to study their efficiency in controlling the rice whorl maggot, Hydrellia prosternalis and the rice stem horer Chilo agamemnon. Giza-176 variety was chosen for, its susceptibility to Hydrellia prosternalis, and Giza-180 was selected for its susceptibility to Chilo aga-memnon. Plant extracts were used as spraying, and Furadan 10% was applied as broadcasting once after 30 days from trans-planting to Giza 176 and 50 days to Giza 180 for the control of the rice whorl maggot and rice stem borer, respectively. Concerning rice whorl maggot infestation, Furadan and onion ex‌tracts gave the best control, while the extracts of wormwood seed of chinaberry seeds, wormwood, onion, garlic and chinaberry leaves were the least effective. Regarding rice stem borer infestation, Furadan and extracts of coriander seeds gave the highest control followed by the extracts of chi‌naberry seeds, wormwood, onion, garlic and chinaberry leaves in the two

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