Journal of Biological Control

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Performance of Trichogramma chilonis under different rearing temperatures


Affiliations
1 Biocontrol Laboratory, Department of Entomology, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola-444 104 (MS), Maharashtra, 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.


Keywords

Biological Parameters, BOD Incubator, Rearing Temperatures, Trichogramma chilonis
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  • Performance of Trichogramma chilonis under different rearing temperatures

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Authors

Amol Waghmare
Biocontrol Laboratory, Department of Entomology, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola-444 104 (MS), Maharashtra, India
Niraj S. Satpute
Biocontrol Laboratory, Department of Entomology, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola-444 104 (MS), Maharashtra, India
S. K. Bhalkare
Biocontrol Laboratory, Department of Entomology, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola-444 104 (MS), Maharashtra, India
P. N. Mane
Biocontrol Laboratory, Department of Entomology, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola-444 104 (MS), Maharashtra, 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

References





DOI: https://doi.org/10.18311/jbc%2F2021%2F23776