RELATIVE TOXICITY OF FIVE INSECTICIDES TO RED COTTON BUG, DYSDERCUS KOENIGII (FABRICIUS)
D. K. NAGIA *
CENTRAL INSECTICIDES LABORATORY, DIRECTORATE OF PLANT PROTECTION, QUARANTINE AND STORAGE, NH-IV, FARIDABAD-121001, INDIA.
SANJAY KUMAR *
CENTRAL INSECTICIDES LABORATORY, DIRECTORATE OF PLANT PROTECTION, QUARANTINE AND STORAGE, NH-IV, FARIDABAD-121001, INDIA.
PAMMI SHARMA *
CENTRAL INSECTICIDES LABORATORY, DIRECTORATE OF PLANT PROTECTION, QUARANTINE AND STORAGE, NH-IV, FARIDABAD-121001, INDIA.
M. L. SAINI *
CENTRAL INSECTICIDES LABORATORY, DIRECTORATE OF PLANT PROTECTION, QUARANTINE AND STORAGE, NH-IV, FARIDABAD-121001, INDIA.
*Author to whom correspondence should be addressed.
Abstract
The relative toxicity of five insecticides studied in the laboratory against red cotton bug D. koenigii (Fabricius) revealed cypermethrin to be most effective insecticide followed by fenvalerate, monocrotophos, acephate and triazophos with their LCs values as 0.000152. 0.000972, 0.001071, 0.003308 and 0.004026 per cent respectively.