Natural variability in susceptibility of field collected rice yellow stem borer (Scirpophaga incertulas) and rice leaffolder (Cnaphalocrocis medinalis) to Bacillus thuringiensis (Bt) δ-endotoxins was investigated to establish a geographic baseline for comparison of future population responses to the increased use of Bt based insect control products like Bt transgenic rice and commercial formula...

Tolerant rice accessions were identified from a field study involving 196 at Pandit Jawaharlal of Agriculture and Research Institute, Karaikal for yellow stem borer, Scirpophaga incertulas. in along with the susceptible check (TN1) considered analyzing biochemical parameters viz., chlorophyll content, total sugars, reducing phenols, soluble protein, proline. Higher amounts moderate lesser sugar...

Rice is the major staple food in Jharkhand India and threatened by various biotic abiotic stresses. Among insect pests that imperil rice cultivation Jharkhand, yellow stem borer (Scirpophaga incertulas Wlk.) one of most notorious ones. The present investigation was conducted Kharif 2018 to study bioefficacy certain chemical insecticidal treatments against borers measured terms mean values dead ...