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Indian Journal of Entomology
Year : 2019, Volume : 81, Issue : 1
First page : ( 159) Last page : ( 162)
Print ISSN : 0367-8288. Online ISSN : 0974-8172.
Article DOI : 10.5958/0974-8172.2019.00010.5

Population dynamics of the mustard sawfly athalia lugens proxima (KLUG)

Kalasariya R. L.*, Parmar K. D.

AINP on Pesticide Residues Laboratory, ICAR, Unit-9

*Corresponding author Email: dr.ravi@aau.in

Online published on 30 April, 2019.

Abstract

The field experiments on the population dynamics of the mustard sawfly Athalia lugens proxima (Klug) were conducted in the Instructional farm of Junagadh Agricultural University, Junagadh, Gujarat in two successive rabi seasons of 2012–13 and 2013–14. Correlation analysis of the pooled data revealed that the maximum and minimum temperature influenced the larval population negatively; while relative humidity in the morning and evening were positively (0.5363) and negatively (−0.1120) influencing, with their mean values exhibiting negative correlation. The estimate of determination coefficients (R2 = 0.7647) revealed that all the weather factors viz., temperature, relative humidity, sunshine hours, wind speed and rainfall had a major role on the population buildup.

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Keywords

Athalia lugens proxima, mustard, population dynamics, temperature, relative humidity, sunshine hours, wind speed, rainfall.

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