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

Li.Jianglin Zhang Tao LiXintang Ma Shike(Station of Plant Protection of Bayin Guoleng Inner Monglia Autonomous Prefecture,Kuerle 841000),Yang Daoqin Wang Weixue(Station of Plant Protection of Luntai County,XinJiang),Wang Dengyuan(Xinjiang August Fir  
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.
【CateGory Index】: S436.6
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