Performance of Trichogramma chilonis under different rearing temperatures


  • Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Biocontrol Laboratory, Department of Entomology, Akola, Maharashtra, 444 104, India


Influence of rearing temperature on biological parameters of Trichogramma chilonis (Ishii) was studied under laboratory conditions during 2017-18. Maximum per cent parasitization and adult emergence of 74.2% and 78.91%, respectively was observed at 25+1°C followed by 71.8% and 65.21 % at 30±1°C. However, the temperature of 40+1°C was found detrimental to T. chilonis recording only 20.2% parasitization, the progeny of which has failed to complete the development and the adults could not emerge out. The developmental period was maximum (8 days) at 25+1°C. Also, maximum male and female longevity (5 and 12 Days, respectively) and maximum mean per day fecundity of 17 eggs per female/day were recorded at 25+1°C. The progeny was found to be male dominated with a female-male ratio of T. chilonis to be 0.69, 0.74 and 0.96 at 25, 30 and 35°C, respectively.


Biological parameters, BOD incubator, rearing temperatures, Trichogramma chilonis

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Bari, M. N., M. Jahan and K. S. Islam, 2015. Effects of temperature on the life table parameters of Trichogramma zahiri (Hymenoptera: Trichogrammatidae), an egg parasitoid of Dicladispa armigera (Chrysomelidae: Coleoptera). Environ Entomol. 44: 368–378.

Cabezas, G. F., M. Melo, M. S. García, G. I. Diezrodríguez, D. E. Nava, 2013. Parasitismo de Trichogramma pretiosum (Hymenoptera: Trichogrammatidae) sobre Spodoptera cosmioides (Lepidoptera: Noctuidae) a diferentes temperaturas. Rev Colomb Entomol. 39: 216–220.

Calvin, D. D., M. C. Knapp, S. M. Welch, F. L. Poston and R. J. Elzinga, 1984. Impact of environmental factors on Trichogramma pretiosum reared on south western corn borer eggs. Environ Entomol, 13(3): 774–780.

Consoli, F. L. and J. R. P. Parra, 1995. Effects of constant and alternating temperature on Trichogramma galloi Zucchi (Hymenoptera: Trichogrammatidae) biology, parasitism capacity and longevity. J. Appl. Entomol. 119(10): 667–670.

tb01355.x Ghosh, E., C. R. Ballal and A. Verghese, 2017. Temperature based differences in biological parameters of some potential species/strains of Trichogramma. J Biol Control 31(2): 82–89.

Haile, A. T., S. A. Hassan, C. K. P. O. Ogol, J. Baumgartner, S. Sithananrdtham, J. C. Monje and C. P. Zebitz, 2002. Temperature dependent development of four egg parasitoid Trichogramma species (Hymenoptera: Trichogrammatidae). Biocontrol Sci Technol.12(5): 555– 567.

Hassan, S. A. 1994. Strategies to select Trichogramma species for the use in biological control. CAB International, UK. 4(1): 55–73.

Qian, H., B. Cong, Z. Zhang and Q. Dai, 2013. Effect of some environmental and biological factors on reproductive characters of Trichogramma spp. Afr J Agric Res. 8(19): 2195–2203.

Ramesh, B. and P. Baskaran, 1996. Developmental response of few species of Trichogramma (Hymenoptera: Trichogrammatidae) to heat shocks. Entomophaga 41: 267–277.


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