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Hemasree, E.
- Testing the Pathogenecity of Nomuraea rileyi (Farlow) Samson against Castor Semilooper, Achaea janata Linnaeus
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Authors
Affiliations
1 Department of Entomology, S.V. Agricultural College, Tirupati 517 502, IN
1 Department of Entomology, S.V. Agricultural College, Tirupati 517 502, IN
Source
Journal of Biological Control, Vol 27, No 4 (2013), Pagination: 349–353Abstract
The larvae of II, III and IV instars of Achaea janata treated with subculture I, II and insect cultures of Nomuraea rileyi indicated larval mortalities to be positively correlated with the concentrations of all the three cultures. First subculture and insect culture were almost equally efficacious in causing the disease. Slightly lowered mortality were recorded with subculture II. Reduction in larval mortality was noticed with advancement of the age in A. janata larvae. Almost 100 per cent larvae were dead with 1x108 spores ml-1 concentration when treated in II intar and it was 5-15 per cent when treated in III and IV instars. However, relatively lower concentrations like 1x104 - and 1x105 spores ml-1 also recorded mortality of 50 per cent and above. The lowest concentration of 1x102 spores ml-1 resulted in 20-30 per cent larval mortality.Keywords
Nomuraea rileyi, Subculture, Insect Cultures, Achaea janata, Pathogenicity, Larval Mortality.Full Text
References
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