BIOLOGY AND PHYSICAL MEASUREMENTS OF WHITEFLY, Bemisia tabaci (GENNADIUS) ON CHILLI IN WEST BENGAL, INDIA
Journal Title: International Journal of Agriculture Sciences - Year 2016, Vol 8, Issue 49
Abstract
The female and male nymphs of Bemisia tabaci (Gennadius) was reared on leaves of potted chilli plants fitted with modified rearing glass vials, at 24-31 0C temperature and 80-85 % RH. The nymphs completed ecdysis at the age of 12.11± 1.00 days. The ratio of male: female was 1: 2.7. The preoviposition, oviposition and incubation period of eggs were 1.14±0.38, 2.50±1.29 and 5.39±1.58 days, respectively. The fecundity was 24.71±3.04. The first, second and third instar nymphs completed ecdysis within 1.68±1.00, 1.78±1.00 and 4.06±1.00 days respectively, and 4th instar or puparium stage lasted for 4.59±1.00 days. Adult longevity of female and male was 4.78±1.00 and 3.29±1.00 days, respectively. Life cycle completed within 23.14±0.69 and 20.85±0.90 days for female and male respectively. The female was larger than male. Length and breadth of 1st, 2nd, 3rd and 4th (puparium) instars were 0.29±0.02 and 0.12±0.01; 0.68±0.03 and 0.67±0.01; 0.72±0.04 and 0.66±0.05; 0.77±0.04 and 0.55±0.05mm, respectively. The length and breadth of eggs were 0.20±0.01 and 0.09±0.02mm, respectively.
Authors and Affiliations
P. S. CHINTKUNTLAWAR
Keywords
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