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2005年以来在我国多地发现葡萄根瘤蚜(Daktulosphaira vitifoliae Fitch.)。为了解其种群年增长动态,对西安和上海两地田间葡萄根瘤蚜种群进行了调查,结果表明,两地的葡萄根瘤蚜为根瘤型,以孤雌生殖为主,在8—10月出现有性世代更替,田间调查发现少量根瘤蚜有翅型若虫,但未发现有翅型成虫;虫口总量分别在7月和10月出现两次高峰。从11月开始,成虫大量死亡,卵的数量随之减少,种群数量开始下降,逐渐进入越冬休眠状态,1龄幼虫是其越冬的主要形态。春季当地温上升到13.0℃左右时,葡萄根瘤蚜结束休眠,幼虫开始取食,经过几次蜕皮逐渐转变为成虫,进行孤雌生殖产卵。
Since 2005, many Daktulosphaira vitifoliae Fitch. Have been found in our country. In order to understand the dynamics of annual population growth, the population of Phyllostachia phylloxera in the fields of Xian and Shanghai was investigated. The results showed that the Phylloxera phylloxera was nodulated and the parthenogenesis was dominant in August and October There was a small amount of aphid winged nymphs in the field investigation, but no winged adults were found in the field. The total population of insects appeared twice in July and October respectively. From November onwards, a large number of adults died, the number of eggs decreased, the population began to decline, and gradually entered the winter dormancy state, the first instar larvae are the main form of winter. Local spring temperature rose to about 13.0 ℃, the grape phylloxera end of dormancy, the larvae began to feed, after a few times gradually transformed into adult molting, parthenogenesis spawning.