Effect of Rate and Carrier on Clomazone Movement Off-site

Abstract

Field studies were conducted in 1985 and 1986 to determine the influence of herbicide rate, carrier, and carrier volume on off-site movement of clomazone {2-[2-chlorophenyl)methyl]-4,4-dimethyl-3-isoxalidinone} using sunflower (Helianthus annuusL. ‘HY-894’) and wheat (Triticum aestivumL. ‘Caldwell’) as indicator plants. Clomazone applied at the lowest rate (0.56 kg ai/ha) had less off-site movement than higher rates. Off-site movement was similar among water carrier volumes applied at each clomazone rate but was less when clomazone was impregnated onto dry fertilizer.