由于20年的暖夏,阿拉斯加的云杉八齿小蠹虫生长的异常旺盛。
Spruce bark beetles have boomed in Alaska thanks to 20 years of warm summers.
议员们今天是见木不见林;当树林被烧毁或被小蠹虫毁掉时才会改变,然而那时岂不就太晚了。
Lawmakers today aren't seeing the forest for the trees; that will change when the forest has burned or been destroyed by bark beetles, but by then it will be too late.
系统的种类鉴定子系统较精练地利用了专家知识和经验,能对常见小蠹虫的近似种进行鉴定。
The identification subsystem has utilized the experts 'experiments and knowledge, can identify the approximate species of the bark bettles.
小蠹虫伴生菌是在植物—小蠹虫—伴生菌系统中,削弱树木抗性、协助小蠹虫侵害的重要因子。
Fungi associated with beetles, important agents in plant beetle associated fungi system, help beetles attack on trees and weaken resistance of trees.
东南山区小蠹虫天敌寄生蜂8种,其中:茧蜂科2种,广肩小蜂科1种,金小蜂科3种,旋小蜂科2种。
There are 8 species of parasitic wasps in the Southeast Mountains region, 2,1,3, and 2 species of which belong to Braconidae, Euritomidae, Pteromalidae, and Eupelmidae respectively.
造成这种损失的部分原因要归结于温带和针叶林带里爆发的小蠹虫虫害,创纪录数量的小蠹虫撑过了最近这些个温和的冬天。
This was partly because of a plague of bark-beetles in its temperate and boreal zones, a record number of which have been surviving the recent mild winters.
1994年和1995年在玉溪市北城镇刺桐关办事处石狗头村,云南松纵坑切梢小蠹虫危害的云南松林中,进行了施肥试验。
The fertilization test on the trees damaged by Tomicuspiniperda has been done in the forest of Pinus yunnanensis in 1994 and 1995 in Shigoutou village, Citongguan office, Beicheng town of Yuxi city.
1994年和1995年在玉溪市北城镇刺桐关办事处石狗头村,云南松纵坑切梢小蠹虫危害的云南松林中,进行了施肥试验。
The fertilization test on the trees damaged by Tomicuspiniperda has been done in the forest of Pinus yunnanensis in 1994 and 1995 in Shigoutou village, Citongguan office, Beicheng town of Yuxi city.
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