苹果园绣线菊蚜生活史的初步研究

A Preliminary Study on the Life Cycle of Spirea Aphid Aphis citricola Van der Goot

1987和1988年两年的研究发现,绣线菊蚜在苹果园内的生活周期(?)芷谇惹(?)健HNO 暧小迹冢龋ā剑创吻ǔ筛叻澹(?)植荚冢丛碌住ⅩⅥ翟轮邢旬、7月中下旬和9月中旬以后。4月底的第1次迁飞高峰是越冬虫源引起的,只有越冬卵密度较大的果园才形成此迁飞高峰,主要在果园内外扩散蔓延;5月中下旬和7月中下旬的迁飞高峰期恰好分别与苹果春梢和秋梢的生长停滞期相吻合,主要迁向第二寄主;9月中旬以后有翅产雌性母和雄性蚜相继大量迁入果园,形成第4次迁飞高峰。

The life cycle of spirea aphid is holocyclogency and belongs to migration type.There are four migration population peaks in a year.The first peak occurs in the last of April,the winged fe- males spreading in the orchard;the second peak in the middle and last of May,the winged females spreading out of the orchard;the third peak in the middle and last of July;the fourth peak in and af- ter the last of September,the winged females——sexuparaes migrating into the orchard.