Journal of Pharmacognosy and Phytochemistry
Vol. 7, Issue 5 (2018)
Population dynamics of gram pod borer (Helicoverpa armigera Hübner) on chickpeas
Author(s):
Pankaj Kumar, Mohammad Abbas Ahmad, Lovely Kumari, Ram Kumar, Awdhesh Kumar and Abhinandan Singh
Abstract:
The present investigation was carried out at research farm of Tirhut College of Agriculture, Dholi, Muzaffarpur, Bihar during
Rabi 2017-18. The larval population was initially recorded in 7
th standard week (third week of February) (2.33 larva/plant) with a peak in 13
th standard week (2
nd week of April) (5.33 larva/plant). Mean larval population of
Helicoverpa armigera on chickpea variety KPG-59 was found positively correlated with maximum temperature (0.495), whereas minimum temperature and relative humidity (7 Hrs and 14 Hrs) shows negative and non-significant correlation (-0.055), (-0.553), respectively. Correlation between rainfall and larval population was found negative and significant (-0.666). However, all the weather parameters together contributed 80.7 percent towards
Helicoverpa armigera larval population.
Pages: 967-969 | 1266 Views 530 Downloads
Pankaj Kumar, Mohammad Abbas Ahmad, Lovely Kumari, Ram Kumar, Awdhesh Kumar and Abhinandan Singh. Population dynamics of gram pod borer (Helicoverpa armigera Hübner) on chickpeas. J Pharmacogn Phytochem 2018;7(5):967-969.