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Ramanagouda, S. H.
- Current Status of Eucalyptus Gall Wasp and its Native Parasitoids in Karnataka
Abstract Views :305 |
PDF Views:128
Authors
S. H. Ramanagouda
1,
A. S. Vastrad
1,
T. C. Narendran
2,
K. Basavanagoud
1,
Viraktamath Shashidhar
1
Affiliations
1 Department of Agricultural Entomology, University of Agricultural Sciences, Dharwad, 580005, Karnataka, IN
2 T. C. Narendran Trust for Animal Taxonomy, Calicut, Kerala, IN
1 Department of Agricultural Entomology, University of Agricultural Sciences, Dharwad, 580005, Karnataka, IN
2 T. C. Narendran Trust for Animal Taxonomy, Calicut, Kerala, IN
Source
Journal of Biological Control, Vol 25, No 3 (2011), Pagination: 193-197Abstract
Roving survey was conducted during 2010-11 to assess impact of native parasitoids on eucalyptus gall wasp in Belgaum, Dharwad, Haveri, Davangere, Chitradurga, Tumkur and Bengaluru Rural districts of Karnataka, India. It was observed that the gall incidence declined drastically since its outbreak in 2007 due to the activity of native parasitoids. Activity of native parasitoids was more in southern districts. Among the native parasitoids Megastigmus dharwadicus Narendran et al was the most dominant. The eucalyptus gall wasp which had become a production constraint during 2007 threatening the productivity of paper and pulp industry is efficiently kept under check by the native parasitiods.Keywords
Eucalyptus Gall Wasp, Leptocybe invasa, Megastigmus dharwadicus, Aprostocetus gala.Full Text
References
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- Gelatin Capsules To Enhance The Efficacy Of Lecanicillium lecanii Against Myzus persicae
Abstract Views :127 |
PDF Views:76
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
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