枸杞木虱成虫携带瘿螨越冬

New found of overwintering gall mites carried by adult Poratrioza sinica

多年来一直认为枸杞瘿螨Aceria pallida Kefer以成螨在树皮缝和芽缝内越冬,我们在宁夏中宁最新调查发现,大量瘿螨若螨潜伏于枸杞木虱越冬成虫体壁缝隙,尤其以后足基节与腹部缝隙最多。初步调查结果显示,越冬枸杞木虱Poratrioza sinica Yang et Li成虫雌性和雄性成虫均携带瘿螨成螨和若螨,平均2-3头,最多的可达30头。如果枸杞瘿螨随枸杞木虱越冬成虫越冬成为主要途径,那么对枸杞木虱越冬成虫的防治将成为控制枸杞瘿螨危害的重要防治策略和技术手段。

Over years, the gall mites infested Lycium chinense Miller has been reported overwinter in tree crevices and shoots. Recently, we have found a new way that the overwintering gall mites carried by adult Paratrioza sinica Yang et Li in Zhongning, Ningxia. Many gall mites are mainly living within the seam between hind coaxes and abdomen of P. sinica adults. Preliminary findings show that male and female adults of overwintering P. sinica have carried with an average of 2 to 3 gall mites, and a maximum up to 30. If carried by adult P. sinica were the main overwinter way of gall mites, the management of overwintering P. sinica would be an important way to control gall mites.