综合防治方法主要分越冬期防治、危害期防治、利用天敌防治和采取营林措施。
The integrated control methods include winter control, attack-stage control, natural enemy control and afforestation practice control.
开普罗介绍说，驳船上的用水只有普通田地的十分之一，也没有农业径流，使用生物天敌防治像瓢虫这样的温室蔬菜害虫而不是化学农药。
The barge used one-tenth as much water as a comparable field farm. There was no agricultural run-off, and chemical pesticides were replaced with natural predators such as ladybirds.
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。
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.
田间比较测试了5种杀虫剂对地黄跳甲的防治效果及其对天敌的影响。
Control efficiency of 5 pesticides to rehmanniae flea beetle and influence to their natural enemies were compared in field condition.
人工饲养麦蛾，扩大人工繁殖天敌的种类，为扩大生物防治范围提供基础的技术保证。
It provided basic technological guarantee for enlarging scope of biological control to feed artificially Sitotroga cerealella and enlarged the kinds of natural enemies by artificial breeding.
它有许多天敌，尤其是长尾小蜂，被认为是有效的生物防治手段。
Natural enemies, especially species of Torymidae, are considered as efficient biological control agents.
捕食天敌能防治病害的前提是害虫猎物数量增长受害虫自身密度的制约。
The prerequisite for the natural enemies to be able to control insect pest is that the increase of injurious insects is restrained by the density of the latter.
保护利用天敌是农田害虫生物防治的基本手段。
Conservation and utilization of natural enemies is the basic measure in biological control of agricultural pests.
本文记述了该虫的生活史，发育历期、生活习性、发生与环境的关系及天敌情况，提出了防治建议。
Its life history, development at various stages, habits, relationship between occurrence and environment, and its natural enemies were dealt with. Last, the control methods were advanced.
赤眼蜂属是生物防治中广泛用来防治鳞翅目害虫的一类重要天敌昆虫。
Egg parasitoids of the genus Trichogramma are widely used in biological control against Lepidopterous pests.
是鳞翅目害虫的重要天敌，它们在生物防治中的成功应用在很大程度上取决于其成功的搜寻行为。
The success of foraging behavior of Microplitis wasps is governed by many factors including semiochemicals, experience and learning, as well as physiological state, rearing method etc.
这些结果表明优势天敌昆虫在防治害虫方面有一定的实际应用价值。
That explained that the advantage natural enemies hadcertain reality applied value in the field of the pest preventing and controlling.
利用寄生性天敌花绒寄甲防治天牛幼虫和蛹是主要的防治技术，前景广阔。
It was the main techniques in future to control the larvae and pupa by parasitoids of Dastarcus helophoroides.
蔬菜田不同防治策略下天敌控害作用的实验评价。
Experimental evaluation of natural enemy activities in cabbage fields treated with different pest control strategies.
本文讨论了利用初始EF值来预测天敌对害虫的功能作用及生物防治与化学防治协调的可能性。
The possibility of using the initial EF value to predict the enemy function and to coordinate the pest control strategies with natural enemies and with chemical insecticides was discussed.
本文讨论了利用初始EF值来预测天敌对害虫的功能作用及生物防治与化学防治协调的可能性。
The possibility of using the initial EF value to predict the enemy function and to coordinate the pest control strategies with natural enemies and with chemical insecticides was discussed.
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