Abstract

Carbofuran granules incorporated as a preplant soil treatment at rates from 0.25 to 1.00 lb active ingredients per acre resulted in mortality of adults of Lissorhoplrus ozyzophilus Kuschel up to 6 weeks. The toxicant was translocated to the rice leaves, and mortality resulted from feeding. Relatively little toxic effect on eggs or first-instar larvae in the leaves was noted at 1.0 lb preplant or post-oviposition treatments. Preplant surface application, soil incorporation, and a post-oviposition treatment at the 1.0-lb rate caused high mortality of larvae which may have been due to systemic or contact action.

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