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Journal of Entomological Research
Year : 2024, Volume : 48, Issue : 1
First page : ( 56) Last page : ( 59)
Print ISSN : 0378-9519. Online ISSN : 0974-4576.
Article DOI : 10.5958/0974-4576.2024.00012.4

Population dynamics of major insect-pests of cowpea and their correlation to abiotic parameters

Sharma Aditya Kumar*, Singh Amarendra Pratap, Kumar Rajnish, Yadav Devendra Kumar, Tyagi Saniya

Department of Entomology, Baba Raghavdas Post Graduate College, Deoria-274 001, Uttar Pradesh, India

*Corresponding authors' E-mail : adisharmajmd098@gmail.com

Online published on 4 March, 2024.

Abstract

During the crop season, the Epilachna, jassid and blister beetles were recorded in the last week of July (31 SMW) with a mean population of 2.90 epilachna beetles/plant, 6.30 jassids/3 leaves and 2.70 blister beetles/plant and reached to its peak (9.20 epilachna beetle/plant, 13.70 jassids/3 leaves and 7.20 blister beetles/plant) during the fourth week of August (35 SMW). During this period, the maximum and minimum temperature and relative humidity ranged from 35 to 27°C and 83 to 59%, respectively. The epilachna, jassid and blister beetles show positive correlations with all-weather parameters, viz., maximum and minimum (temperature & relative humidity), rainfall and wind velocity.

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Keywords

Blister beetle, Cowpea (Vigna unguiculata), Epilachna beetle, Jassid, Population dynamics.

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