P.V.L. PRAVALIKA*, K. DEVAKI, P. LATHA AND K. MANJULA

Department of Entomology, S.V. Agricultural College, ANGRAU, Tirupati-517 502.

ABSTRACT

Seed treatment was done at the time of sowing with imidacloprid 600 FS and thiamethoxam 30 FS. Among the different treatments, seed treated with imidacloprid 600 FS @ 2.0 ml kg-1 (+ 4 ml water) seed was found more effective in reduction of thrips and leafhopper damage followed by thiamethoxam 70 FS @ 2.0 g kg-1 seed when compared to untreated control. At 35 days after sowing, foliar spray was imposed to known the efficacy of foliar spray in groundnut against sucking pests. Among the different treatments imidacloprid 600 FS seed treatment + imidacloprid 17.8 SL spray (T₈) and imidacloprid 600 FS seed treatment + thiamethoxam 25 WDG (T₆) were the best treatments with 64.3 and 63.9 per cent reduction over control against thrips. The treatments imidacloprid 600 FS seed treatment + thiamethoxam 25 WDG spray (T₆) and imidacloprid 17.8 SL spray (T₅) were the best treatments with 66.5 and 63.4 per cent reduction over control against leafhoppers.

KEYWORDS: Groundnut, Seed treatment, Sucking pests Imidacloprid, Thiamethoxam.