并系统的提出了植物检疫、农业防治、物理防治、化学防治和生物防治等较为有效的菟丝子综合治理技术体系。
The technique system of integration dodder management on alfalfa including plant quarantine agricultural and biological prevention and chemical and biological control are put forward.
为抑制其种群蔓延，前人开展了化学防治、物理防治、植物替代和生物防治等对豚草的防控研究。
To suppress the spread of the ragweed, there have been a lot of studies on their chemical control, physical control, plant displacement and biological control.
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。
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.
根据当地主要病虫害的发生规律，以农业防治和生物防治为主体，化学防治中以使用无公害农药为主，实现苹果的优质、高产、高效生产。
According to the rules that insects and diseases appear in these area, we chiefly undertake agricultural and biological prevention and cure, and use biorational insecticide in che...
建立的系统模型能够提供包括农业防治、生物防治和化学防治措施在内的、对三化螟种群实施有效管理的最优决策方案。
The system model can provide on optimal decision strategy to effectively control PSB population, which contains measures of agricultural control, biological control and chemical control.
建立的系统模型能够提供包括农业防治、生物防治和化学防治措施在内的、对三化螟种群实施有效管理的最优决策方案。
The system model can provide on optimal decision strategy to effectively control PSB population, which contains measures of agricultural control, biological control and chemical control.
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