Abstract
s: Effectiveness of three insecticides, monocrotophos(Azodrin 60EC), Cypermethrin(Cymbush 10EC) and Carbaryl(Vetox 85WP) at specified spray schedule, were evaluated in comparison to untreated control treatment for the management of common upland rice sucking bugs, Aspavia armigera and Stenocoris claviformis. . Cypermethrin at the rate of 15kg a.i./ha was most effective at reducing the population of of the sucking bugs, 24 and 72 hrs after application while carbaryl at 1.5kg a.i./ha was observed to be most effective in producing residual effect on the sucking bugs. Carbaryl at 1.5kg a.i./ha provided better reduction in the population of rice bugs. The application of the selected insecticides did not result in increase in yield of upland rice. Application of insecticides to control sucking bugs in upland rice should strictly be based on damage threshold of the insect pest.
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