BIOLOGY OF LASIOPTERA BRYONIAE SCHINER (CECIDOMYIIDAE: DIPTERA) ON DIFFERENT TEMPERATURES

M. MUTHUKUMAR¹*, S. SRIDHARAN², J.S. KENNEDY^3
1Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
²Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
³Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
* Corresponding Author : muthukumar.tnau@gmail.com

Received : 02-01-2020     Accepted : 13-01-2020     Published : 15-01-2020
Volume : 12     Issue : 1       Pages : 9398 - 9399
Int J Agr Sci 12.1 (2020):9398-9399

Keywords : Biology, Temperature, Fecundity, Maggot and Days
Academic Editor : Darusha Witharana
Conflict of Interest : None declared
Acknowledgements/Funding : Authors are thankful to Department of Agricultural Entomology, Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu, India
Author Contribution : All authors equally contributed

Bitter gall midge Lasioptera bryoniae was a pest of Momordica charantia. The objective of this work was to study the effect of different temperatures on Lasioptera bryoniae biology. Measurements included duration and viability of the egg, maggot and pupal stages, sex ratio, fecundity and longevity. The life cycle of L. bryoniae observed in three temperature regimes is completed in 17-26 days with 2-4 days for egg, 8-12 days for maggot and 4-6 days for pupa. At the temperature of 25ºC, the number of eggs laid by female of bryoniae was and 115.4 respectively. The fecundity decreased at higher temperature as compared to the optimum temperature of 25ºC.

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