Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Oviposition and development of the mealybug parasitoid Anagyrus pseudococci (Girault) at different constant temperatures.

Abstract

Oviposition and rate of development of Anagyrus pseudococci, a parasitoid of Planococcus citri, were determined at constant temperatures of 18, 21, 24, 27, 30 and 33°C in the laboratory. Most progeny were produced at 27 and 30°C. The developmental rate for both the sexes showed a good fit to a linear regression model over a wide range of temperatures. Males developed faster than females at all temperatures. The lower developmental threshold was estimated to be 13.06 and 12.57°C for males and females, resp. The estimated thermal requirement for development was 195.50 degree-days for males and 219.59 degree-days for females.