Journal of Entomological Research
Year : 1990, Volume : 14, Issue : 2
First page : ( 142) Last page : ( 145)
Print ISSN : 0378-9519.

Effect of food plants on the biology of Epilachna vigintioctopunctata Fabr. (Coleoptera: Coccinellidae)

Dhamdhere S.V., Koshta V.K., Rawat R.R.

Depmtment of Entomology, College of Agriculture, J. N. Agricultural University, Campus Gwalior-474 002 (India).

Accepted:  10  May,  1990.

Abstract

The effect of six host plants on the larval and post-larval development of Epilachna vigintioctopunctnta Fabr. was studied. Average incubation and larval period were shortest on brinjal and longest on datura. Percentage larval and pupal survival was maximum on brinjal and minimum on datura. Average pupal period was shortest on makoi and longest on datura. Percentage adult emergence was highest in the case of tomato and lowest on datura. The longevity of males and females recorded on different food plants ranged from 29 to 43, and 34 to 57 days, respectively. Fecundity of the females reared on makoi was the highest and that on datura was the lowest. On the basis of the development and survival of the pest, tomato and brinjal were the most perferred and datura the least preferred food plants.

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