Experimental studies and production practices have shown that pest control in winter is not only low in cost, but also often results in a multiplier effect. It mainly starts from the following four aspects:
1, clean pastoral
In the clean garden, some pests often lurk in the deciduous leaves (fruits) of the host plant and overwinter. After the crops are harvested, they can be cleaned in a timely manner and often can eliminate a large number of overwintering pests.
Winter plowing winter irrigation
Winter plowing Winter plowing Through deep plowing, the original living environment of the pests can be changed, and the deep soil pests can be turned to the surface to dry, freeze or be eaten by natural enemies, so that the insects in the deep underground can not be normally feathered and become suffocated. In order to reduce the overwintering source of insects, the winter irrigation followed by cultivation can not only sink and weather the soil, but also freeze some of the overwintering pests.
3, fertilization weeding
In winter and spring, it is an effective measure to prevent overwintering pests by composting manure, eradicating weeds inside and outside the field, or spraying the weeds in early spring.
4, cleaning pests
Some pests (such as corn borers) that deal with host plants often hide in the stems or cobs of host plants after the crops are harvested; winter or early spring, they use the stems or cobs of these host plants as fuel, feed, and fertilizer. All other ways to deal with it can greatly reduce the wintering base of pests.
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