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主要害虫

n.primary pest
网络major pests; Key pest; Main insect pests

主要害虫

英-汉网络释义

主要害虫

primary pest

英汉农业词典6-国外资料-高尔夫建造养护网 ... primary growth 头槎(草) primary pest 主要害虫 primary root 初生根 ...

major pests

...害加重，形成经济意义上或生存繁衍上的危害，从而变成主要害虫（major pests），也就是通常所说的害虫。

Key pest

除了了解害虫的种类外，尚需决定何种害虫为主要害虫(Key Pest)，偶发害虫(Occasional Pest)或二次性害虫(Sceondary Pest) …

Main insect pests

次要害虫,minor... ... ) main pest 主要害虫 ) Main insect pests 主要害虫 ) minor pests 次要害虫 ...

main pests

次要害虫,minor... ... ) Main pests 主要虫害 ) main pests 主要害虫 ) major pests 主要害虫 ...

main pest

次要害虫,minor... ... ) major pests 主要害虫 ) main pest 主要害虫 ) Main insect pests 主要害虫 ...

例句：

Ectropis obliqua prout is one of the key pests in tea garden. Lots of biological control researches were already conducted.

茶尺蠖是我国茶园的主要害虫之一，对它的生物防治有关学者已经开展了大量的研究工作。

Citrus whitefly has been a major pest in citrus production .

柑桔白粉虱已成为危害柑桔生产的主要害虫。

The main insect pests , day one of poplar club moth division .

杨树主要害虫之一，天社蛾科。

Aphids is one of the major pests of crops .

蚜虫是为害农作物的主要害虫之一。

This paper mainly reports some bionomics of main pests in Camellia oleifera and theirs control methods .

本文主要叙述了为害油茶主要害虫的生物学特性，并提出了有效的防治方法。

This paper reported the killing effect of "BuckStar" insects extinguisher on main insect of vegetables .

进行了 “巴克星 ”光电生物灭虫器对有机蔬菜田主要害虫的诱杀效果试验。

One of the most important pests , day club moth division .

栎树主要害虫之一，天社蛾科。

The pests and their natural enemies on capsicum were investigated in Qiubei County, Yunnnan province , in 2007 .

试验于 2007年对云南省丘北县辣椒田的主要害虫，天敌种类及其发生消长规律进行了系统调查。

Occurrence Characteristics of the Main Pests and Their Controlling Techniques in Directly Sowing Rice

直播水稻主要害虫的发生与防治技术

Pollution-free and comprehensive control techniques of the main pests on vegetables growing in plastic houses

大棚蔬菜主要害虫无公害综合防治技术

The main pests to be controlled within the factory

工厂要控制的主要害虫

Effect of pesticides on wheat aphids and their natural enemies in wheat fields as well as on pests and natural enemies in maize fields

杀虫剂对麦蚜、天敌及后茬玉米田主要害虫与天敌的影响

The environment-friendly prevention and control of the main insects and pests in the peach orchard

桃园主要害虫的无公害防治

Observation on resistance of trans Bt plus CPTI gene cotton to major cotton pests and keynotes of its pest management technologies

转双价基因抗虫棉对主要害虫的抗性观察与防治技术要点

Preliminary Study on Law of Field Growth and Decline of Alfalfa Major Insects in Ningxia

宁夏苜蓿主要害虫田间消长规律的初步研究

Regional Distribution of Main Citrus Pests and Its Control Techniques in Zigui County

秭归县柑桔主要害虫分布及其综合防治技术研究

Investigation of main insects and its natural enemies in tea plantation in southern anhui

皖南丘陵茶区主要害虫及天敌资源调查

Studies on Effects of Intercropping Castor and Black Soybean on Biological Prevention and Control of Major Pests of Black Soybean

蓖麻、黑豆间作对黑豆主要害虫防除效果的研究

Study of several insecticides on primary pests and natural enemy of rice

几种杀虫剂对水稻主要害虫及天敌的影响

Study on theIntegrated Management for Main Insect Pests of Crisp Pear and Its Application in Xi County Experiment Region

隰县试区酥梨主要害虫综合治理研究与应用

Current Situation and Management Strategies of Insecticide Resistance of Main Cotton Pests in Shanxi

棉花主要害虫抗药性现状及治理对策

Main Pests of Afforesting Trees and Its Prevention and Cure in the Central Shaanxi Plain

关中地区绿化树木主要害虫及防治对策

Niches of the main pests and their natural enemies in soybean fields in summer

夏大豆田主要害虫及天敌生态位研究

主要害虫

主要害虫

primary pest

major pests

Key pest

Main insect pests

main pests

main pest

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