抄録
Development times of Coccobius fulvus (COMPERE et ANNECKE) introduced from China for the control of the arrowhead scale were determined under five different temperature conditions. Based on the data, the developmental zero and effective cumulative temperature of this parasitoid were estimated to be 11.5°C and 373 day degrees, respectively. The number of generations in a year in Fukuoka was also estimated to be 6.
