Some studies on biology of Pentalonia nigronervosa Conquarrel - the vector of banana bunchy top virus
1999
Yasmin, T. (Quaid-i-Azam Univ., Islamabad (Pakistan). Dept. of Biological Sciences) | Ehsan-ul-Haq | Khalid, S. | Malik, S.A.
Biology of viviparous black banana aphid, Pentalonia nigronervosa Coq., vector of Banana Bunchy Top Virus (BBTV) was studied on banana under growth chamber at a photo period of 16:8 hours (light:dark), 55 plus minus 5 per cent humidity and at 20 plus minus 5 degree centigrade. From the time of its birth as a nymph, P. nigronervosa took a period of 10 to 14 days with an average of 10.6 days to develop to the final nymphal moult. Fecundity was 1-4 nymphs per day. Over 10 days it ranged from 9 to 26 nymphs/aphid, the average being 13.2. The average body length, width and length of hind tibia of adult aphid were 0.507 mm, 0.282 mm and 358.18 microgram m. respectively. Life span of P. nigronervosa ranged from 19 to 26 days with an average of 20.3 days.
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