Vol. 7, Issue 3 (2019)
Seasonal abundance of major sucking insect pests of okra and their natural enemies in relation to abiotic factors
Author(s): Sharwan Lal Jat and Swaroop Singh
Abstract: To study the abundance of sucking pests of okra during summer season under semi-arid ecosystem of Rajasthan. The experiment was conducted at the Horticulture farm, S. K. N. College of Agriculture, Jobner (Rajasthan.) during summer, 2017 and 2018. The incidence of leafhopper, Amrasca biguttula biguttula (Ishida) and whitefly, Bemisia tabaci (Genn.) were observed on okra crop during two consecutive seasons. The infestation of leafhopper commenced in the third week and second week of March (12th SMW and11thSMW) and reached to its peak in the first week of May and third week of April, 2017 and 2018, respectively. The leaf hopper population had positive significant correlation with maximum and minimum temperature (r= 0.74, r=0.66, and r= 0.57, r=0.56 respectively) in 2017 and 2018. Whitefly infestation in the fourth week of March (13th SMW) and reached its peak in the 18th SMW during both the years. The whitefly population exhibited positive significant correlation with (r= 0.65), (r=0.55) maximum, (r=0.60) minimum temperature during 2017 and 2018 and while whitefly populations had negative significant correlation (r= -0.55, r= -0.53) with rainfall during both the year.
Pages: 2173-2178 | 527 Views 187 Downloads
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How to cite this article:
Sharwan Lal Jat, Swaroop Singh. Seasonal abundance of major sucking insect pests of okra and their natural enemies in relation to abiotic factors. Int J Chem Stud 2019;7(3):2173-2178.
