First report of the occurrence of cacopsylla Chinensis (Yang & Li) (Hemiptera: Psyllidae) on cultivated Japanese pear in Japan

Abstract

The occurrence of Cacopsylla chinensis (Yang & Li, 1981), which is known to be a serious pest of pear in China and Taiwan, has newly been recorded on cultivated Japanese pear in Saga Prefecture, Kyushu, Japan. Two seasonal forms (i.e., summer and winter) of this species have been confirmed in Japan as in China and Taiwan. Here, some biological information on this species and pictures of color variations in adults and nymphs are presented.