oa Journal of the Entomological Society of Southern Africa - The influence of constant temperature on the development and survival of the immature stages of Culex (Culex) theileri Theobald (Diptera: Culicidae)
|Article Title||The influence of constant temperature on the development and survival of the immature stages of Culex (Culex) theileri Theobald (Diptera: Culicidae)|
|© Publisher:||Entomological Society of South Africa (ESSA)|
|Journal||Journal of the Entomological Society of Southern Africa|
|Affiliations||1 Department of Zoology and Entomology, University of the Orange Free State, Bloemfontein, South Africa|
|Publication Date||Sep 1991|
|Pages||141 - 153|
|Keyword(s)||Culex theileri Theobald, Developmental rate and temperature, Larvae and Mosquitoes|
The effect of various constant temperatures on the development of laboratory-reared mosquitoes (Group A) and on the progeny of field-acclimatized adults (Group B) was studied. For both groups the optimum development temperature was 27Â°C and the peak development temperature was 33Â°C. The thresholds of development were 7,9Â°C and 6,3Â°C, while the average development times were 11,9 days and 11,3 days for groups A and B respectively. The highest percentage survival occurred at 27Â°C for Group A while 21Â°C- 27Â°C gave the same survival for Group B. The upper critical limits of development to adulthood were 36Â°C and 33Â°C respectively while the lower limits were 15Â°C (Group A) and 12Â°C (Group B).
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