Comparative Life Table of Aphis craccivora on Blackgram under Laboratory Conditions
K. Sasikumar, N. Ganapathy, M. Shanthi
Current Journal of Applied Science and Technology · pp. 13–16 · Published 2 Apr 2022
10.9734/cjast/2022/v41i531666Abstract
The blackgram aphid, Aphis craccivora Koch, is an important pest of Robinia pseudoacacia Frisia. The life table parameters of A. craccivora were determined under laboratory conduction. The results revealed that in blackgram, the net reproductive rate (17.23 individuals per female), mean generation time (11.73 days) and doubling time (2.868/days) were higher at 300 C and lower at 350C viz., 11.10, 9.68 and 2.787 respectively. The intrinsic rate of increase (0.249 day) and finite rate of increase (1.282 day) were at the maximum in 300C and at the minimum in 350C viz., 0.242 and 1.273 days respectively in blackgram.
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