Vol. 11, Special Issue 9 (2022)

Author(s):
Anand N Warghat, SS Munje, Anoorag R Tayde and Sobita Simon

Abstract:
The current investigation was conducted to estimate the resistance level against different doses of synthetic pyrethroids i.e., Bifenthrin 10% EC was carried out during (2021-22), at Regional Research Centre (soybean), Amravati, (M.S.). Observations on the percent mortality have been observed at 24 & 72 hours after treatments. The percent mortality in C. chinensis L. was increased with higher concentration at 24HAT was 66.6 percent in 150 ppm while lower concentration was 30 ppm 48 followed by 50 ppm was 56.5 percent followed by 70 ppm was 61.6 percent followed by 90 ppm was 70 percent compared with treatment control. After 72h the most superior treatment was 150 ppm at 86 percent mortality recorded while the least treatment was 30 ppm with 65 percent mortality found as compared with the treatment control (Distilled water).