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Research Article Open access CC BY 4.0

Evaluation of Botanicals Insecticide against Stem Borer Scirpophaga incertulas (Walker) Leaf Folder (Cnaphalocrosis medinalis) and Green Leafhopper and in Rice

S. K. S. Rajpoot, Mahendra Singh, V. Prasad, S. Dixit, N. Parkash, R. A. Singh, D. K. Dwivedi

International Journal of Environment and Climate Change · pp. 40–45 · Published 20 Mar 2023

10.9734/ijecc/2023/v13i51743

Abstract

A field experiment was conducted during the kharif season of 2020-21 and 2021-22 at Crop Research station, Masodha, Ayodhya, India to evaluate the efficacy of insecticide-botanicals against rice stem borer, green leafhopper and leaf folder. The experiment was comprising Four combination modules/treatments consisting of three insecticides Chlorantraniliprole 20% SC, Cartap hydrochloride 50% SC and Triflumezopyrim 10% SC, one commercial neem formulation - Neemazal and two plant oils - Neem and Eucalyptus oil procured were compared along with untreated control (only water spray). The lowest stem borers incidence (1 %) of in all insecticides treatment module recorded as compared to 14.8% in untreated control. Among modules, all insecticides module was found to be the best with 1.0% mean white ear damage followed by neemazal, eucalyptus oil and cartap hydrochloride module with 5.3% WE. Green leafhopper infestation was all insecticides combination was the most effective treatment showing mean population of 110.7/10 hills followed by all botanical combination (120.7) and were superior to control (158.7/10 hills). The mean leaf Folder damage (1.8%) was recorded from all insecticides module followed by treatment with neemazl (? %), Eucalyptus oil (? %),  and Triflumezopyrim 10% SC (3.9% DL) when compared to untreated control (14.5% )4. Grain yield all insecticides treatment - Chlorantraniliprole, Cartap hydrochloride, Triflumezopyrim recorded the highest grain yield of 5212.0 kg/ha with 95.79% increase over control (IOC) followed by neemazal, neem oil and cartap hydrochloride with 4500 kg/ha (69.04% IOC). All the treatments were significantly superior to control plot which showed a yield of 2662 kg/ha.

Stem borers incidence green leaf hopper leaf folder grain yield

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