IPM is an effective pest control method that uses information on the life cycle of the pest and incorporates nonchemical and chemical methods.
这种方法是一种有效的综合运用非化学和化学方法的方法，并充分利用害虫生长周期的一种方法。
In this paper predator-prey systems with periodic impulsive effect concerning pest control are proposed through biological control and chemical control.
摘要本文通过生物控制和化学控制提出了具有周期脉冲效应与害虫控制的捕食系统。
He says collaborators are trying to reformulate the liquid chemical into a powder form that might be more useful in pest control.
他说合作者正在尝试改良液体的生物碱成粉末状便于用在害虫防治上。
In order to control the pest, producers will have a variety of large-scale use of pesticides, especially the irrational use of chemical pesticides, greatly reducing the safety of vegetable products.
为控制病虫害，生产者将不得不大量使用各种农药，特别是化学农药的不合理使用，降低了蔬菜产品的安全性。
The resistance of the pest is increasing severely, which made it difficult to control effectively by traditional control methods, such as, chemical, agricultural and biological methods.
由于小菜蛾的抗性日益严重，使传统的防治方法，如化学防治、农业防治和生物防治难以有效地控制小菜蛾的为害。
It is unavailable to waste pesticides and pollute the environment by using conventional chemical control of insect pest.
使用传统的化学防虫不可避免地会造成农药浪费和环境污染。
They are key points in rodent pest control. The methods of rodent pest control include agricultural control, chemical control, physical control and immuno-contraception.
鼠害的防治技术主要有农业防治、化学防治、物理机械防治、生物防治以及免疫不育等高新技术防治。
Clever spiders a chemical used by golden orb web spiders to keep ants at bay could make a useful pest control agent, say researchers.
研究者说。聪明的蜘蛛利用一种自身的化学制品A把蚂蚁困在他们的金色圆形蜘蛛网里，这样蜘蛛就变成了一个害虫防治机构。
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。
Aphid is one kind of destructive pest in agricultural production. For a long time, the prevention and control of aphids has been mainly depended on chemical pesticide.
蚜虫是一种严重危害农业生产的害虫，长期以来，对蚜虫的防治主要依靠化学农药。
Aphid is one kind of destructive pest in agricultural production. For a long time, the prevention and control of aphids has been mainly depended on chemical pesticide.
蚜虫是一种严重危害农业生产的害虫，长期以来，对蚜虫的防治主要依靠化学农药。
应用推荐