Efficacy of dinotefuran 20% sg against major planthoppers of rice Sarao Preetinder Singh, Randhawa Harpal Singh1,* Department of Plant Breeding and Genetics, PAU, Ludhiana 1PAU, Regional Research Station, Gurdaspur *Corresponding author Email: harpals_randhawa@pau.edu
Online published on 23 July, 2019. Abstract The efficacy of dinotefuran 20% SG was evaluated against white backed planthopper (WBPH) and brown planthopper (BPH) in rice during 2016 and 2017. Doses of 30, 40 and 50 g a.i. along with imidacloprid 17.8 SL and quinalphos 25 EC @ 20 and 500 g a.i. ha−1, respectively were compared. The results revealed that dinotefuran @ 40 and 50 g a.i. ha−1 proved significantly better(1.70–2.04 WBPH/hill; 2.02–2.61 BPH/hill) at 5, 7 and 10 days after spray as compared to imidacloprid (2.75–4.29 hoppers/hill), quinalphos (3.32–4.91 hoppers/hill) and untreated control (17.78–26.67 hoppers/hill) across all locations evaluated. The grain yield ha−1 was also significantly more with these treatments. Top Keywords Dinotefuran 20% SG, efficacy, white backed planthopper, brown plant hopper, basmati rice, imidacloprid, quinalphos, spider. Top |