Abstract
A field study was carried out to see the comparative efficacy of conventional insecticides viz. curacron, larvin, lorsban and a
newly introduced insecticide tracer (spinosad) applied @ 400 g, 380 g, 400 g and 288 g per acre respectively against
Helicoverpa armigera on cotton. Tracer gave significantly better control of Helicoverpa armigera as compared to
conventional insecticides.
