新疆果树多毛小蠹生物学特性及防治

多毛小蠹是新疆果树重要害虫，危害杏树甚为严重。在库尔勒一年发生2～3代，主要以幼虫和少数成虫、卵在树皮内越冬，世代重叠。在自然变温下，卵历期4～11天，幼虫20～31天；蛹期6～9天；成虫10～35天。完成一世代需40～86天，主要以幼虫在寄主树表面活动。采用农业和药剂防治相结合效果显著。

Studies on the Bionomics of Scolytus seulensis Murayama and Its Control.

Scolytus seulensis Murayama is a key pest of apricot tree in Xinjiang Urgur Autonomous Re-gion.It developes 2-3 overlapping generations a year in Kuerle District.The larvae or sometimes,theadults or eggs overwinter under the barks.Under natural conditions,the egg stage lasts 3-9 days;larva,20-31 days;pupa,6-9 days;and adult,10-35 days.40-86 days are necessary for completing a gener-ation.It makes injury mainly by the larvae under the bark.Control with agricultural methods combinedwith applying insecticides were to be effective.