International Journal of Chemical Studies
Vol. 5, Issue 3 (2017)
Effect of the abiotic factors on major insect pests in Okra (Abelmoschus esculentus) under Chhattisgarh Plain
Author(s): Sagar Anand Pandey and VK Koshta
Abstract: A field experiment was conducted on Rabi season 2014 at the experimental field of Research cum Instructional Farm, Indira Gandhi Krishi Vishwavidyalaya, Raipur, Chhattisgarh, India to the effect of abiotic factor viz., Maximum temperature, Minimum temperature, Morning Relative humidity, Evening Relative humidity, Wind velocity and Sunshine hours on major insect on okra cultivar Parbhani kranti. Five insect species viz shoot and fruit borer (Earias vittella), aphid (Aphis gossypii), jassid (Amrasca biguttula biguttula), whitefly (Bemisia tabaci) and red cotton bug (Dysdercus koenigii) were observed as the major insect pests. The period of maximum activity of shoot and fruit borer (18.36 fruit borers per plant) were noticed during first week of January. The density of aphid (17.94 per three leaves) and jassid (17.12 per three leaves) were observed during first, second week of December respectively whereas whitefly (13.23 per three leaves) were observed during fourth week of November. The density of red cotton bug (3.16, 2.94 and 2.89 per plant) was observed during second and fourth week of December and fourth week of January. The aphid, jassid, whitefly and red cotton bug population had significant positive correlation with maximum temperature while shoot and fruit borer had positive correlation with maximum temperature.
Pages: 540-544 | 944 Views 19 Downloads
How to cite this article:
Sagar Anand Pandey, VK Koshta. Effect of the abiotic factors on major insect pests in Okra (Abelmoschus esculentus) under Chhattisgarh Plain. Int J Chem Stud 2017;5(3):540-544.