Persistence of Fenvalerate on Soybean

When 0.02% fenvalerate at 700 litres/ha was applied at the flowering and a repeat application at pod formation stages to control the pests of the crop. the wait-ing period of fenvalerate on green foliage and pods were 10.8 and 6.5 days. At har-vest, the terminal residues of fenvalerate during 1985, and 1986 on soybean grains straw and pod cover were 0.07 and 0.27 ppm, 1.47 and 1.27 ppm, and 1.38 and 1.47 ppm. respectively.