Seasonal incidence Efficacy of different novel insecticides and bio-pesticides against yellow stem borer Scirpophaga incertulus (Walker) on Rice

Abstract

The present investigation was carried out to study the efficacy of different novel insecticides and bio-pesticides against stem borer Scirpophaga incertulus (Walker) during kharif 2015-16 at Crop Research Centre of Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut. Efficacy of newer insecticides (fipronil 5 SC, cartap hydrochloride 50SP,chlorpyriphos 20 EC, imidacloprid), one biopesticide (Neemarin 1500 ppm) and one bio-control agent (Trichogramma japonicum) were evaluated against yellow stem borer Scirpophaga incertulas (Walk.) in Basmati rice. The stem borer recorded as dead heart ear heads ranged from 4.85 to 10.55 per cent and white ear head showed that it was recorded on 38th standard weak. All the treatments were found significantly effective in reducing the infestation of stem borer and increasing the yield compared with control. Application of fipronil 5 SC was the most effective treatment in reducing the stem borer infestation at all observational interval resulting highest grain yield The results of paddy yield depicted in table 3, showed that the plots treated with fipronil 0.3 GR @ 25 kg/ha gave the highest yield (45.56 q/ha).

Performance of various pesticides against Yellow stem borer, Scirpophaga incertulas (Walker) of Basmati rice and effect on yield in Northern India

“…10 th Day after spray After 10 th day of spray, data revealed that Fipronil 5 SC again found effective and it was best treatment among all the treatment of the eld experiment with 2. In the present investigation Fipronil 5 SC was found most effective against the damage of yellow stem borer, which was already reported by Kakde and Patel (2019) and also investigated that Cartap hydrochloride 4 G is less effective after Fipronil against the yellow stem borer's damage that is agreed by Singh et al (2017) and Lal (2006). Seni and Nail (2017).…”