Safening of DPX-F5384 on rice by combination with thiocarbamate herbicides.

Abstract

The tolerance of rice to DPX-F5384, the active ingredient in Londax® Herbicide, has been found to be significantly enhanced by simultaneous application with the thiocarbamate herbicides, thiobencarb, MY-93, CH-83, and SC-2957. The DPX-F5384-thiocarbamate herbicide combinations provide greater rice safety to DPX-F5384. Thiobencarb and MY-93 treatment of rice plants increase the rate of DPX-F5384 metabolism by rice leaves 3-4 fold. This suggests that the dramatic increase of DPX-F5384 metabolism in rice plants is the main mode of action of the observed thiocarbamate safening effects.