Evaluation of Sequences of Insecticides, Biopesticides and Bioagents Against Major Insect Pests of Brinjal, Solanum Melongena Linn.

Periodic Research (P: ISSN No. 2231-0045 RNI No. UPBIL/2012/55438 VOL. -5, ISSUE-4, May - 2017 E: ISSN No. 2349-9435)


Abstract


 S.R. Yadav 

Research Scholar, Deptt.of Entomology, S.K.N. College of Agriculture S.K.R.A.U., Jobner, Rajasthan


K.C. Kumawat 

Professor, Deptt.of Entomology, S.K.N. College of Agriculture S.K.R.A.U., Jobner, Rajasthan


B. L. Naga 

Research Scholar, Deptt.of Entomology, S.K.N. College of Agriculture S.K.R.A.U., Jobner, Rajasthan


S.K. Khinchi 

Assistant Professor, Deptt.of Entomology, S.K.N. College of Agriculture S.K.R.A.U., Jobner, Rajasthan

Out of ten sequences of insecticides, biopesticides and bioagents tested at S.K.N. College of Agriculture, Jobner (Rajasthan), the T3 (imidacloprid 0.05%+ Beauveria bassiana 1 g l-1 + spinosad 0.01%+ two inundative releases of Chrysoperla zastrowi arabica 75,000 eggs ha-1 + destruction of infested shoots and fruits), T9 (dimethoate 0.03% with alternate spray of endosulfan 0.005% (check), and T7 (acephate 0.037% + Metarhizium anisopliae 1 g l-1 + spinosad + Chrysoperla.zastrowi arabiba + destruction of infested shoots and fruits) afforded highest protection in controlling jassid, Amrasca biguttula biguttula (Ishida) and whitefly, Bemisia tabaci (Genn.) and found at par one another. The sequences T2 ( Beauveria bassiana + NSKE 5% + spinosad+ two inundative releases of Trichogramma chilonis 1.5 lac ha-1 + destruction of infested shoots and fruits), T9 (dimethoate with alternate spray of endosulfan (check), T4 ( Beauveria bassiana+ NSKE+ acephate + Bacillus thuringiensis var. kurstaki, Btk 1 ml l-1 + destruction of infested shoots and fruits), T6 (M. anisopliae + NSKE+ acephate + T. chilonis + destruction of infested shoots and fruits), and T8 ( Metarhizium anisopliae + NSKE+ spinosad + Btk +destruction of infested shoots and fruits) revealed low shoot and fruit damage of 4.58-5.04, 6.11-7.52 per cent, respectively due to shoot and fruit borer, Leucinodes orbonalis Guen., formed a nonsignificant group and differed significantly over other treatments. The highest fruit yield of 188.93 q ha-1 was observed in T2 which was found at par with T4, T9, T6 and T8. The benefit cost ratio was highest in the sequence T9 (30.46) followed by T6 (21.39) and T4 (18.21). 

for full paper please visit below link :

http://www.socialresearchfoundation.com/upoadreserchpapers/2/153/1707010510401st%20k.c.%20kumawat.pdf

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