INFLUENCE OF PHOTOPERIOD AND TEMPERATURE ON THE BIOLOGY OF THE APHID, TUBERCULATUS NERVATUS CHAKRABARTI AND RAYCHAUDHURI
L. SOMEN SINGH *
DEPARTMENT OF LIFE SCIENCES, MANIPUR UNIVERSITY, IMPHAL-795003, INDIA.
T.K. SINGH *
DEPARTMENT OF LIFE SCIENCES, MANIPUR UNIVERSITY, IMPHAL-795003, INDIA.
*Author to whom correspondence should be addressed.
Abstract
The influence of photoperiod and temperature on the biology of Tuberculatus nervatus Chakrabarti and Raychaudhuri was conducted inside the laboratory. The three different light regimes viz. LD 8: 16, 12:12 and 16:8 were used and at each light regimes the aphid, T. nervatus on Quercus serrata Thunb. leaves were subjected to temperature 24-28°C and 10-14°C. The mean number of days for nymphal development at 24-28°C and 10-14°C. The oviparous female was also obtained when the aphid exposed to LD 8:16 at 10-14°C.