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(一)动物除草利用动物除草,目前已成为植保学上一个分科,并已取得显著成果。如将家兔放养到番茄园中,它们会迅速吃掉杂草,而番茄却秋毫无损;将白鹅放进棉田,白鹅便会拼命吞食杂草,而对具有特殊气味的棉株置之不理。采用这一方法,一般每只白鹅可以完成15亩棉田的除草任务。(二)蔬菜治虫不少蔬菜能防治病虫害。韭菜能防治棉蚜和红蜘蛛。取新鲜韭菜1公斤,加少量水,捣烂后榨取韭菜汁,每公斤原
(I) Animal weeding The use of animal weeding has now become a sub-branch of plant protection and has achieved remarkable results. Putting rabbits in a tomato garden will quickly eaten the weeds, while the tomatoes will fall intact. Putting the white goose into the cotton fields, the white goose will swallow weeds desperately to ignore the cotton plants that have the special smell. Using this method, each white goose can generally complete the weeding task of 15 acres of cotton fields. (B) many vegetable pest control pests and diseases of vegetables. Leeks can control cotton aphids and spider mites. Take 1 kg of fresh leek, add a small amount of water, pound after squeezing leek juice, per kilogram of the original