US approval for BASF's Zidua
BASF has received US approval for its new residual maize herbicide, Zidua (Kumiai Chemical’s pyroxasulfone 85%). The EPA proposed the approval of pyroxasulfone in January ( Agrow No 632, p 17). Registration applications for use on soybeans and wheat were withdrawn due to data deficiencies, the EPA noted at the time. These are expected in early 2013, BASF points out. Use of pyroxasulfone on other crops, including sunflowers and peanuts, is being evaluated.