BIOLOGY AND PHYSICAL MEASUREMENTS OF WHITEFLY, Bemisia tabaci (GENNADIUS) ON CHILLI IN WEST BENGAL, INDIA

P.S. CHINTKUNTLAWAR¹*, A. PRAMANIK², H. CHATTERJEE^3
1Department of Plant Protection, Visva- Bharati, Santiniketan, Birbhum
²Department of Agricultural Entomology, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia
³Department of Plant Protection, Visva- Bharati, Santiniketan, Birbhum
* Corresponding Author : pchintkuntalawar@gmail.com

Received : 29-06-2016     Accepted : 20-07-2016     Published : 21-10-2016
Volume : 8     Issue : 49       Pages : 2063 - 2065
Int J Agr Sci 8.49 (2016):2063-2065

Keywords : Bemisia tabaci, Chilli, Biology, Ecdysis, Physical measurement, Nymph, Puparium
Academic Editor : Dr Yuvraj Arjun Shinde
Conflict of Interest : None declared
Acknowledgements/Funding : None declared
Author Contribution : None declared

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.