Four measures to reduce pests and diseases in greenhouse

Since the environment in the greenhouse is relatively closed, the problems caused by pests and diseases are much lower than those of open-air planting. However, we cannot ignore this issue. Here are some measures to reduce greenhouse pests and diseases:

(1) Regularly check the growth of the crops so that the growth of the crops can be grasped. When pests and diseases occur, they can be known as soon as possible. When visiting, you should go through all corners of the greenhouse, pay attention to the back of the blade, because the back of the blade is often where the pests hide;

(b) Prophylactic use of fungicides is necessary for certain special crops. At this time, we only need a small amount of fungicide to solve the problem, and the economic effect is good;

(3) Pests not only cause damage to plants through feeding, but also spread various plant viruses. Insects that cause considerable economic losses are flower thrips, which can be used to monitor yellow and blue sticky worms. Monitoring the population density can know the species of pests present in the greenhouse and their population density;

(4) Planting only healthy seeds, seedlings or other reproductive materials without pests and diseases. It is necessary to purchase seed seedlings from technically sound and reputable production units and ensure that they are free of pests and diseases.

More pesticide knowledge , please pay attention to China Pesticide Network

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