Evaluation of Biointensive IPM Modules against Pests of Rabi Sorghum
Keywords:Sorghum, azospirillum, Trichoderma, vermicompost, intercropping, Lecanicillium lecanii, Atherigona soccata, Rhopalosiphum maidis, Peregrinus maidis, seed treatment, cypermethrin, imidacloprid, yield
Some biointensive IPM modules against sorghum pests explored in the present study revealed that seed treatment with imidacloprid 48%FS @ 12ml/ kg- cypermethrin @ 2ml/ l spray at 45 days after emergence (DAE)- treatment T5) and soil application of carbofuran 3G (25kg/ ha) -seed treatment with chlorpyriphos 20EC @ 5 ml in 20ml of water- spray of cypermethrin @ 2.0ml/ l at 25DAE (treatment T5- Recommended package of practices of UAS, Dharwad) were significant and on par against shoot fly Atherigona soccata (Rondani) (13.70 and 14.59% deadhearts), aphid (Rhopalosiphum maidis (Fitch) (20.94 and 17.36 aphids/ 5cm2 leaf) and shoot bugs (Peregrinus maidis Ashmead) (9.77 and 10.62 shoot bugs/ plant). In case of stem borer Chilo partellus (Swinhoe) incidence was less with treatment T6: soil application of carbofuran 3G (25 kg/ ha)- seed treatment with chlorpyriphos 20EC @ 5 ml in 20 ml of water spray of cypermethrin @ 2.0ml/ l at 25 DAE (3.43% deadhearts) followed by T1 (seed treatment with imidacloprid 48%FS @ 12ml/ kg + intercropping with chickpea: sorghum (4:2)- NSKE (5%) spray at 45 DAE). The yields were superior with T5 and T6 (2200 and 2317 kg/ ha, respectively).
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