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1994~1995年,在野外进行了桑天牛成虫飞行距离、诱饵树设置位置、诱饵树根部施药毒杀成虫以及不同被害程度杨树林分利用诱饵法防治效果的研究。结果表明,成虫最远可飞行到2500m处的食物上取食,以在250~550m间较多。诱饵树设在林外低矮植物间的引诱效果为设在林内的31倍。林内诱饵树越高,引诱效果越好。诱饵树根部施入铁灭克240g/m2,在15~21天内对成虫的毒杀效果达640%~867%。利用诱饵树诱集成虫进行人工捕杀,可使林内有虫株率由原来的277%~948%,下降到54%~594%。
From 1994 to 1995, we studied the control effect of using the bait method to control the flying distance, the setting position of the bait tree, the poisoning adults at the bait tree root, and the poplar stand of different damage degree in the field. The results showed that the adults flies furthest to the food at 2500m to eat more, between 250 ~ 550m. The decoy effect of the bait tree located in the low plants outside the forest was 3 times of that in the forest. The higher the bait tree in the forest, the better the lure effect. The bait tree root applied ferulix 240g / m2, within 15 ~ 21 days of adult poisoning effect reached 64 0% ~ 86 7%. The use of bait tree trap adult trap for artificial insects, can make the forest worm rate from 27.7% ~ 94.8%, down to 5 4% ~ 59 4%.