Tests on the Residues of 5% Bestox in Cotton Fields
5% Bestox 乳剂在棉田内的残留动态试验

Experiments on the residual kinetics of Bestox emulsion (5%) were carried out in the cotton fields. The results showed that the half-life of Bostox emulsion (5%) was 23 to 25 days in soil, and 3 to 5 days on leaves. The residues were not observed in cotton seeds even by using dosages 1.5 to 2.0 times of the conventional ones. Bestox is low toxic to mammals and there is no systemic action. The results can give a reliable basis for rationalizing the use of Bestox in the cotton field and limting MRL value in cotton seeds.