Comparative studies on the influence of relative humidity and temperature on life table parameters of two populations of Cotesia flavipes (Hymenoptera: Braconidae)
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Date
2004
Authors
Kairu, E. W.
Getua, E.
Overholt, W. A.
Journal Title
Journal ISSN
Volume Title
Publisher
Taylor & Francis
Abstract
Cotesia flavipes Cameron (Hymenoptera: Braconidae) is a gregarious larval koinobiont parasitoid of gramineous stemborers from the Indo-Australian region. More recently, it has been introduced into several countries in East and southern Africa for regulation of Chilo partellus (Swinhoe) (Lepidoptera: Crambidae). Establishment has varied from country to country and within country, suggesting that abiotic factors, such as temperature and relative humidity, may influence parasitoid performance. In this work, the effect of temperature and relative humidity on life table parameters of two populations of C. flavipes were measured. The results indicated that the factors and their interactions significantly affected the population growth of C. flavipes. The intrinsic rate of increase of the North Pakistan population of Cotesia flavipes was higher than that of the Indian population at all humidities at 28°C, but there were no differences at other temperatures or humidities.
Description
DOI:10.1080/09583150410001682322
Keywords
Cotesia flavipes, life table, optimization, relative humidity, release, temperature
Citation
Biocontrol Science and Technology Volume 14, Issue 6, 2004