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After the autumn crops were harvested, most of the pests entered the overwintering period in succession, and the following measures were taken to control pests.
Clean pastoral. Some pests are often lurking in the remains of host plants, such as dead branches, fallen leaves, and fruit droppings. If they can be burned, plucked, and buried in the fall and winter season, they will certainly play a great role in preventing and controlling diseases and pests in the fields in the coming year. .
Winter ploughing and winter irrigation. Winter plowing and winter plowing can both increase yield and eliminate overwintering pests. Deep plowing can cause deep soil pests to be turned to the ground and die, freeze, or be eaten by natural enemies. Winter irrigation can not only degenerate weathered soil, but also freeze to death. Some of the dead winter insects, thus reducing the source of overwhelming insects.
Eradicate weeds. After the crop is harvested, some of the pests are transferred to the field and the surrounding weeds for winter. In the early spring, these weeds become sites for breeding of overwintering pests. Therefore, it is an effective measure to control overwintering pests by eradicating weeds in the fields and spraying pesticides during autumn and winter.
Handle the host. Some pests (such as corn borers, etc.) often lurk in the stem or cob of the host crop after harvest, and use the stems or cobs of these host crops as fuel, feed, fertilizer, etc. in autumn or early spring, which can be greatly reduced. The wintering base of pests.
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