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Predatory efficiency of mirid bug (Cyrtorhinus lividipennis) on eggs and nymphs of brown planthopper (Nilaparvata lugens) in resistant and susceptible varieties of rice (Oryza sativa)



Predatory efficiency of mirid bug (Cyrtorhinus lividipennis) on eggs and nymphs of brown planthopper (Nilaparvata lugens) in resistant and susceptible varieties of rice (Oryza sativa)



Indian Journal of Agricultural Sciences 60(4): 285-287



The impact of varietal resistance and predation by Cyrtorhinus lividipennis on the delphacid Nilaparvata lugens on rice was determined. The level of predation on eggs differed between varieties, being 23.6, 17.7, 15.5, 15.3 and 13.5% on PTB 33, IR 64, CO 42, IR 36 and TN 1, resp. Apparently high predation on resistant varieties could be attributed to fewer eggs being laid on these varieties and equal predation occurring on all varieties.

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Accession: 002191168

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