根据其杂草分布特点，采取农业、物理机械及化学防治措施，能有效控制草害发生与危害。
According to the character of weeds' distribution, adopting agricultural, physical and chemical control may effectively control the occurrence and damage of weeds.
基因工程的诞生为玉米虫害和草害的防治提供了有效手段。
The birth of genetic engineering provides an effective means for the prevention and treatment of pests and feeds.
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