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Jain, D. K.
- Bioefficacy of Different Biopesticides against Major Foliage Feeders on Soybean [Glycine max (L.) Merrill]
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Authors
Affiliations
1 Department of Entomology, Maharana Pratap University of Agriculture and Technology, Udaipur - 313001, Rajasthan, IN
2 Krishi Vigyan Kendra, Badgaon, Udaipur - 313001, Rajasthan, IN
1 Department of Entomology, Maharana Pratap University of Agriculture and Technology, Udaipur - 313001, Rajasthan, IN
2 Krishi Vigyan Kendra, Badgaon, Udaipur - 313001, Rajasthan, IN
Source
Journal of Biological Control, Vol 33, No 4 (2019), Pagination: 378-381Abstract
Field experiments were conducted to evaluate the efficacy of different biopesticides, viz., Nomuraea rileyi @ 1 × 108 conidia/lit, Beauveria bassiana @ 1 × 109 CFU/ml minimum @ 5 ml/lit, Metarhizium anisopliae @ 1 × 109 CFU/ml minimum @ 5 ml/lit, dipel @ 1 kg/ha, spinosad 45 SC @ 0.5 ml/lit, neem seed kernel extract (NSKE) @ 5% and neem oil @ 2% against foliage feeders of soybean namely, semi looper (Chrysodeixis acuta) and tobacco caterpillar (Spodoptera litura) during Kharif, 2016. The result revealed that all treatments were significantly superior over control. The mean larval population of C. acuta and S. litura ranged from 1.29 to 9.37 and 0.92 to 6.98 larvae per meter row length (mrl) at 3, 7 and 10 days respectively after the application of treatments. The treatments comprising Spinosad 45 SC @ 0.5 ml/lit proved highly effective in reducing the population of C. acuta and S. litura with lowest overall mean larval population of 4.71 and 3.02 larvae per mrl, respectively. Against C. acuta NSKE @ 5% was least effective and against S. litura neem oil was observed as least effective with maximum over all mean larval populations of 7.75 and 4.97, respectively.Keywords
Biopesticides, Chrysodeixis acuta, Foliage Feeders, Soybean, Spodoptera lituraFull Text
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