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Population growth potential of Epilachna vigintioctopunctata (F.) (Coleoptera: Coccinellidae) on some solanaceous medicinal plants

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Title Population growth potential of Epilachna vigintioctopunctata (F.) (Coleoptera: Coccinellidae) on some solanaceous medicinal plants
Not Available
 
Creator Saravanan, L.
Chaudhary, V.
 
Subject Withania somnifera
Solanum surattense; Datura metel
host plants
development
fecundity
survival
population parameters
 
Description Not Available
The spotted ladybird beetle, Epilachna vigintioctopunctata (F.) (Coleoptera: Coccinellidae), is an important pest of solanaceous medicinal plants in India. In this study, we investigated population growth potential of E. vigintioctopunctata in the laboratory at 28 § 1C with 80% § 5% RH and 14:10 L:D photoperiod on seven solanaceous medicinal plants, viz. Solanum nigrum (L.), Datura metel (L.), Datura alba (L.), Solanum surattense Burm. (F.), Withania somnifera (L.) Dunal (wild) and cultivars of W. somnifera, viz. “JA 20” and “JA 134”. The lowest rate of population growth occurred on D. metel, where immature development time, immature survival and pre oviposition period were highest, and fecundity was lowest (183.96 eggs per female). The highest growth rate occurred on S. surrattense and fecundity was also highest (637.08). The lowest net reproductive rate (Ro) (56.60) and the intrinsic rate of population increase (rm) (0.07) were obtained on D. metel and were highest on S. surattense (305.90 and 0.14 respectively). The mean generation time (T) was shortest on S. surattense (40.95 days). Using these measures, it is recognized that E. vigintioctopunctata performance was best on S. surattense and worst on D. metel. The findings of this study will contribute to the development of effective integrated pest management strategies for E. vigintioctopunctata on cultivated W. somnifera
Not Available
 
Date 2022-03-23T11:04:04Z
2022-03-23T11:04:04Z
2017-01-01
 
Type Research Paper
 
Identifier Saravanan & Vipin Chaudhary (2017) Population growth potential of Epilachna vigintioctopunctata (F.) (Coleoptera: Coccinellidae) on some solanaceous medicinal plants, International Journal of Pest Management, 63:1, 82-91, DOI: 10.1080/09670874.2016.1227486
ISSN: 0967-0874
http://krishi.icar.gov.in/jspui/handle/123456789/70558
 
Language English
 
Relation Not Available;
 
Publisher Taylor and Francis group