Performance of Trichogramma chilonis under different rearing temperatures


Affiliations

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

Abstract

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.


Keywords

Biological parameters, BOD incubator, rearing temperatures, Trichogramma chilonis

Subject Discipline

Entomology

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References

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