Bio-efficacy of insecticides against rice yellow stemborer and leaf folder Thorat S S*, Gangwar R K, Parmar M B, Patel S G, Kacha D J Main Rice Research Station, Anand Agricultural University, Nawagam, Kheda-387 540, Gujarat *Corresponding author : sanjuthorat2@gmail.com
Online Published on 15 December, 2023. Abstract The experiment was conducted to test the bio-efficacy of insecticides against rice yellow stemborer and leaf folder at Main Rice Research Station, Anand Agricultural University, Nawagam during kharif 2019 and 2020 crop seasons. The experiment comprising seven treatments was laid out in randomized block design with three replications. The lowest per cent dead hearts and white earheads (3.76 and 8.91/hill) due to yellow stemborer were recorded in the plot treated with the chlorantraniliprole 18.5 SC (30 g a.i./ha) and it was at par with the cartap hydrochloride 75 SG (375 g a.i./ha) (4.0 and 10.08/hill) and flubendiamide 4 + buprofezin 20 SC (210 g a.i./ha) (4.16 and 9.10/hill). Similar trend was recorded with the infestation of leaf folder. The highest grain and straw yield (51.52 and 77.54 q/ha) was recorded from the plots treated with chlorantraniliprole 18.5 SC and it was at par with the cartap hydrochloride 75 SG (50.87 and 76.13 q/ha) and flubendiamide 4 + buprofezin 20 SC (49.28 and 74.92 q/ha). The results revealed that the chlorantraniliprole 18.5 SC, cartap hydrochloride 75 SG, and flubendiamide 4 + buprofezin 20 SC were found superior in management of yellow stemborer and leaf folder. Top Keywords Insecticides, Leaf folder, Yellow stemborer, Yield. Top |