Combined action of silicon and insecticides on white backed plant hopper, Sogatella furcifera (Horvath) and leaffolder, Cnaphalocrocis medinalis (Guenee) infesting rice

Field trial on studying the compatibility of silicon with insecticides in managing white backed planthopper (WBPH) and leaffolder (LF) infesting rice revealed effective containment of LF with a maximum of 74% decline in leaf damage when combined with acephate 75 SP spray as against 63.8% decline by the insecticide alone. WBPH could effectively be managed by combined use of dinotefuran 20 SG or (dinotefuran + buprofezin) 58 WDG with DAE with a maximum of 78% decline in hopper population. Treatments receiving acephate plus DAE resulted in 68.5% decline in hopper population compared to 41.27% by acephate alone revealing the compatibility of DAE with test insecticides. Plots with silicon amendment combined with insecticide spray contributed to effective management of LF and WBPH leading to 11 - 27 q/ha yield enhancement.