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1·Plant volatiles are the most important semiochemiccals in mediating the interactions between plants and phytophagous insects.

植物挥发物是植物与昆虫之间最为重要的化学信息纽带。

2·It is now known that apparent competition is as important as resource-mediated competition, especially for phytophagous insects.

物种之间的表观竞争被认为和资源竞争具有同等的重要性，尤其是对植食性昆虫来说更为重要。

3·Compared with omnivorous pheasants, insectivorous birds and raptorial birds Koklass's digestive system is similar to the typical phytophagous birds.

与杂食性鸡类、食虫鸟类及猛禽比较，勺鸡的消化系统具有典型植食性鸟类的特征。

4·Most of them are phytophagous insects and important pests in agriculture and forest; others are predatory insects and are insect enemy and potential resources for biocontrol.

大多数螽蟖为植食性种类，是重要的农林害虫，部分类群为捕食性种类，是重要的昆虫天敌和生物防治的潜在资源。

5·Transgenic insect-resistance hybrid poplar 741 had negative effect on target and non-target phytophagous pests, but had positive effect on natural enemies and neutral arthropod.

研究表明，转基因741杨对目标昆虫和非目的植食性害虫存在负效应，而对天敌和中性节肢动物组成和发生无明显负作用。

6·In this paper have been discussed the mutual countermeasures between trees and phytophagous insects, bio-chemical basis of induced resistance in regulating phytophagous insects population.

本文着重阑明了树木与植食性昆虫的互相策略，诱导抗性的生物化学基础以及诱导抗性在调节植食性昆虫种群中的重要性。

7·The induced resistance of volatile substance of trees to feeding and deposition of phytophagous insects is the inevitable outcome of coordinated evolution between trees and insects for a long time.

树木挥发物质对植食性昆虫取食、产卵所产生的诱导抗性是树木与昆虫的长期协同进化过程中的必然结果。

8·The results showed that in the first principal component, the contribution of arthropod community, phytophagous sub-community and predacious sub-community was 66.70%, 73.39% and 54.17%, respectively.

结果表明，葡萄园节肢动物群落、植食类亚群落、捕食类亚群落特征向量矩阵中第1主分量综合指标贡献率依次为66·70%、73·39%和54·17%。