日本球坚蚧在永寿县1a发生1代。以二龄若虫在二至三年生枝条背侧越冬。若虫体型小,初孵化时移动性较大。成虫产卵量大,繁殖系数高。通过周年清除虫源,狠抓萌芽、始花前、6～7月3个关键时期辅之以其他时期合理喷药可控制为害。 Japan ball Kenyan occurred in Yongshou County 1a generation. The 2nd instar nymphs winters on the dorsal side of two to three year old branches. Nymphs are small and have a high mobility when hatched. Adult fecundity, breeding coefficient. Through the annual clear source of insects, pay close attention to sprouting, beginning before the flower, 6 to July 3 key period supplemented by other reasonable spraying can control the damage.