Yet animals like sheep or goats eat weeds, so they can provide a biological control. Insects and other organisms can also act as biological controls.然而，像绵羊或山羊之类的动物会吃杂草，因此它们可以起到生物控制作用。昆虫和其他生物也可以起到生物控制作用。
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作者: 杨飞飞儿 时间: 2012-7-25 15:04
Providing the spread weeds is any important part of management. Farm ... should be crashed out with weeds. If that is not possible , then clean your ... quickly and your shoes when leaving.作者: zhant220 时间: 2012-10-7 13:28
Preventing the spread of weeds is an important part of management. Farm vehicles should be crashed out with weeds. If that is not possible , then clean your ... equipment and your shoes when leaving.
