Abstract
AbstractThe development, reproduction and population growth statistics of Dactylopius austrinus on Opuntia aurantiaca are described for constant temperatures of 17.5, 20, 22.5, 25, 27.5, 30, 32 and 34°C. The lower temperature threshold for female development was 15.6 °C. Development was most rapid at 32 °C and the rate of development was linearly related to temperature between 20 and 30 °C. The maximum finite rate of increase (Λ) was 1.1569 females per female per day at 30 °C. Relevance of this study to control of O. aurantiaca and breeding of D. austrinus for field release are discussed.
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