栎树主要害虫之一，天社蛾科。
果蝇是水果和蔬菜的主要害虫。
Fruit bats are major injurious insects to fruits and vegetables.
稻螟为浙江省水稻的主要害虫。
Rice stem borer is the main pest on rice in Zhejiang province.
竹螟是浙江省安吉县的竹子主要害虫。
Bamboo snout moth is the main bamboo insect in Anji county, Zhejiang province.
阐述了新疆棉区主要害虫的演替及其机理。
The succession and its mechanism of cotton pests in Xinjiang were summarized in this paper.
核桃瘤蛾是北京市郊区核桃树的主要害虫之一。
The walnut nolid moth, Nola distributa Walker, is a major pest of walnut tree in the vicinity of Peking.
结果表明：桃蛀螟已成为玉米的主要害虫之一。
The results showed: the peach borer has been one of the most important corn insect pest.
稻飞虱作为水稻的主要害虫，严重的影响水稻生产。
Planthoppers, as one of the most widespread and destructive rice pests, greatly affect the rice yield.
叶螨类害虫已成为我国蔬菜、果树和花卉的主要害虫。
The Tetranychus mites has become the major pest to vegetables.
报道了云南蔗区主要害虫捕食性蝽蟓和寄蝇的种类分布。
The distribution and various kinds of tachinid about main pests in sugarcane of yunnan and its host are reported.
褐飞虱在中国分布很广，近年来已成为南方稻区的主要害虫。
Brown plant hopper distributes very wide, and it has been the major rice insects in Southern China.
模型库中有主要害虫种群动态预测模型及动态防治指标模型。
The model system contains 3 kinds of main pests forecasting models and their dynamic economic thresholds models.
本文论述了泰来县杨树苗木主要害虫种类，并提出了防治对策。
This article discusses kind of pests of piplar seedlings in Tailai county and puts forward control measures .
介绍了云南省烟草主要害虫天敌资源和天敌昆虫的自然控制作用。
The main natural enemies of the pests on tobacco of Yunnan and their role on natural control of the pests were reviewed.
是我国及世界稻区主要害虫，培育抗性品种是最经济有效的防治手段。
Breeding resistance varieties is the most economic and effective way to control the pest.
稻赤斑沫蝉已由次要害虫上升为主要害虫，在重庆地区一年发生一代。
One generation of rice spittle bug ( Callitettix versicolor Fabricius), which has recently become a dominant pest for rice crops, occurs in a year in Chongqing, China.
酢浆草岩螨是危害酢浆草正常生长并严重影响其观赏价值的主要害虫之一。
The harm of erineum in creeping oxalis is one of the harms of affecting the normal growth of creeping oxalis and main harmful insects that seriously affects its viewing and admiring value.
缺点：污染环境，杀伤天敌，害虫抗药性产生，导致次要害虫上升为主要害虫。
Weakness: the pollution of the environment, killer predators, pests drug-resistant produce, cause secondary pests for the main insect pests rise.
金银花尺蠖是近年发现的金银花产区的主要害虫，该虫在封丘县每年发生4代。
The honeysuckle geometrid is a kind of main pest discovered in recent years, which has 4 generations every year in Fengqiu.
大菌蚊是鄂东大别山区食用菌生产上的主要害虫之一，发生范围大，危害严重。
Neoempheria sp, existing in a large area and having a high morbidity. is one of the most destructive vermin in production of edible mushrooms in the east of Hubei Province.
收集浸渍幼虫标本50余号，针插标本2200余号，其中包括了大多数的主要害虫。
More than 50 specimens of steeping larvae and 2200 tag specimens were collected including most of the important pests.
在室内和田间测试了几种杀虫剂对麦蚜、天敌及后茬玉米田主要害虫与天敌种群的影响。
The effect of several pesticides on wheat aphids and their natural enemies as well as on pests and natural enemies population in maize field was tested indoors and in the field.
生草果园天敌对主要害虫绣线菊蚜和山楂叶螨在时间维度上有较强的追随效应和控制作用。
They had strong pursuing and control effect to Aphis citricola Van der Goot and Tetranychus viennensis Zacher from time dimension.
防虫网对西瓜主要害虫黄守瓜、菜青虫的控制效果为100%，蚜虫的控制效果为80%。
The prevention effect of fly nets above watermelon against yellow melon leaf beetles, cabbage caterpillars and aphids were 100%, 100% and 80% respectively.
蚜虫是一类为害燕麦的主要害虫，近几年随着气候条件的变化，蚜虫的发生为害有加重趋势。
Aphid is one of the important pests which feeding on oat. In recent years, occur and damage of aphid have aggravated with the change of climate.
对中国各烟区烟田主要虫害的发生情况及防冶研究进行概述，旨在为防冶烟田主要害虫提供科学依据。
The paper outlined the development, preventing and controlling research of tobacco field main pests of all tobacco areas in China.
本文综述了水稻、大豆、苜蓿三大作物及其主要害虫的系统分析和模拟模型在国内外的主要研究成就。
The main research progress in China and oversea on system analysis and modeling for rice, soybean, alfalfa and their main insect pest ecosystem is surveyed.
研究表明，良好的农业生态环境为农田提供了丰富的天敌资源，对一些主要害虫具有明显的自然控制作用；
The research shows that nicer environments enriched the abundances of natural enemies in crop fields, which markedly controlling some major insect pests.
是水稻的主要害虫之一，它刺吸水稻韧皮部汁液，干扰光合产物由源向库的运输，影响水稻的生长和发育。
The BPH feeds mainly on the stems, and sucks assimilates from the phloem. BPH feeding interferes with the translocation of photosynthates from source to sink, hence, affects plant and development.
蜡蚧轮枝菌是同翅目蚜虫、粉虱和蚧类害虫的重要生防资源，可用于防治高附加值的茶叶上的主要害虫茶蚜。
It also can be applied to the control of the main pest such as tea aphids in the tea trees.
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