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Journal of Entomology and Zoology Studies
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P-ISSN: 2349-6800, E-ISSN: 2320-7078

Journal of Entomology and Zoology Studies

2018, Vol. 6, Issue 4
Population dynamics of major insect pests of lentil

Gulshan Kumar and Surender Singh Yadav

Population dynamics of insect- pests viz Aphis craccivora, Etiella zinckenella and Helicoverpa armigera on lentil was studied under field conditions during Rabi 2015-16. Peak population of A. craccivora (78.0 aphids/ 5 plants), E. zinckenella (11 larvae+ faecal material/ plant) and H. armigera (0.83 larvae / 5plant) was recorded on 7th, 12th and 9th Standard meteorological weeks (SMW), respectively. Population dynamics studies revealed significant negative correlation of Aphis craccivora population with the Temperature (max. & min.) i.e r = -0.5015** and r = -0.6138*, significant positive correlation of Etiella zinckenella with the Temperature (Tmax. & Tmin.) i.e r = 0.8251*and r =0.8481* and non-significant correlation of H. armigera population with the abiotic factors.
Pages : 1274-1276 | 865 Views | 386 Downloads


Journal of Entomology and Zoology Studies Journal of Entomology and Zoology Studies
How to cite this article:
Gulshan Kumar, Surender Singh Yadav. Population dynamics of major insect pests of lentil. J Entomol Zool Stud 2018;6(4):1274-1276.

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