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, Venkateshalu
- Gelatin Capsules To Enhance The Efficacy Of Lecanicillium lecanii Against Myzus persicae
Abstract Views :129 |
PDF Views:77
Authors
Affiliations
1 Department of Entomology, College of Horticulture, Bagalkot 587104, Karnataka, IN
1 Department of Entomology, College of Horticulture, Bagalkot 587104, Karnataka, IN
Source
Indian Journal of Entomology, Vol 84, No 1 (2022), Pagination: 54-58Abstract
Evaluation of gelatin capsule-based formulations of indigenous isolate of Lecanicillium lecanii (Zimm.) Zare and Games was carried out at the College of Horticulture, Bagalkot during 2018-19. The gelatine capsules filled with different ratios of spore and talc powder (1:0, 1:1, 1:2 and 1:3) were evaluated in the laboratory for their efficacy against aphid Myzus persicae. The results indicate that equal quantity of spore and talc powder showed better efficacy than other two combinations and next best to spore alone. The gelatine capsules containing the spore powder alone though proved better with maximum mortality when it was used fresh and immediately after their formulation; the efficacy decreased drastically after 30 days after storage. Evaluation of their storability, under varying storage conditions revealed that refrigerated condition is the best in maintaining the virulence of the spore after four months of storage period. The pot culture experiment revealed that significantly more mortality of aphid was obtained with gelatine capsules formulations of local isolate of L. lecanii as compared to commercial formulation.Keywords
Lecanicillium lecanii, capsule formulations, gelatin, virulence, spore, talc powder, Myzus persicae, mortality, storage, period, refrigeration, pot cultureFull Text
References
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- Improving the Efficacy of Pongamia Oil with Combinations of Botanical Oils Against Sucking Pests of Chilli
Abstract Views :74 |
PDF Views:62
Authors
A. S. Gadge
1,
Venkateshalu
2,
J. B. Gopali
3,
H. P. Hadimani
4,
V. P. Singh
5,
Raghavavendra
6,
Vijaymahantesh
7
Affiliations
1 Department of Entomology, College of Horticulture, Bagalkote 587104, Karnataka, IN
2 Department of Entomology, College of Horticulture, Bagalkote 587104, Karnataka,, IN
3 Department of Vegetable Science, College of Horticulture, Bagalkote 587104, Karnataka, IN
4 Department of Entomology, RHREC, Dharwad 580001, Karnataka, IN
5 Department of PSMA, College of Horticulture, Bidar 585401, Karnataka, IN
6 Department of Biochemistry, College of Agriculture, Shimoga 577201, Karnataka, IN
7 Directorate of Extension, University of Horticultural Sciences, Bagalkote 587104, Karnataka, IN
1 Department of Entomology, College of Horticulture, Bagalkote 587104, Karnataka, IN
2 Department of Entomology, College of Horticulture, Bagalkote 587104, Karnataka,, IN
3 Department of Vegetable Science, College of Horticulture, Bagalkote 587104, Karnataka, IN
4 Department of Entomology, RHREC, Dharwad 580001, Karnataka, IN
5 Department of PSMA, College of Horticulture, Bidar 585401, Karnataka, IN
6 Department of Biochemistry, College of Agriculture, Shimoga 577201, Karnataka, IN
7 Directorate of Extension, University of Horticultural Sciences, Bagalkote 587104, Karnataka, IN
Source
Indian Journal of Entomology, Vol 84, No 3 (2022), Pagination: 622-626Abstract
The study evaluated the efficacy of various oils and combinations against sucking pests of chilli. The concentration of emulsifier for efficient emulsification of oils was also studied. Detergent powder @ 0.3% effectively emulsified pongamia oil @ 2.5, 5.0 and 10%. Combination of pongamia oil + neem oil + cotton seed oil + citronella oil (50:25:15:10 ratio) @ 2.0% was superior in management of sucking pests followed by pongamia oil + neem oil (50:50 ratio) @ 2.0%. Botanical oils and their combinations had no direct impact on pollinators and natural enemies except citronella oil. Pongamia oil + neem oil + cotton seed oil + citronella oil (50:25:15:10 ratio) and pongamia oil + neem oil (50:50 ratio) yielded significantly higher yield over other treatments.Keywords
Helicoverpa armigera, Chickpea, Genotypes, Infestation, Phenols, Proteins, Malic Acid, Reducing Sugars, Pod Damage, Correlation Coefficients, Relationships.Full Text
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