Fruit tree diseases and pests will seriously affect the yield and quality of fruits. In the fall, the pests that destroy fruit trees mainly include the following methods:
First, trapping and killing pests use insect pests to select for wintering sites. After autumn, they will tie grass or break sacks on large branches of fruit trees to trap pests and pupates for winter, then concentrate on killing. In particular, when the density of overwintered worms is greater in that year, the trapping effect is more pronounced.
Second, the removal of fallen leaves in autumn and winter season, combined with pruning to remove the diseased shoots, insect shoots, and the orchard and its surrounding weeds and litter removed, concentrated treatment, you can eliminate a large number of overwintering pests.
Third, cultivating and cultivating garden fields is not only an important measure to improve the soil and promote fruit tree production, but also an effective method to eliminate overwintering pests and diseases. Through ploughing, the deep soil pests and pathogens can be turned to the surface and frozen to death, dry or eaten by natural enemies, so that buried insects can not be feathered and suffocated, thereby reducing the overwintering base.
IV. Pharmacopoeia control If damage is found in trunks of fruit trees, poisonous swabs can be inserted after the insects are removed. The orifices are closed with slime; general tree protection can also be sprayed to destroy the source of pathogen supply, and the virus is osmotically eliminated. Transmission path.
5. In the deciduous dormancy period of fruit trees, spray 1~2 times of new high-fat film + tree maintenance generals, various scale insects for fruit trees, red spider and apple rot, pear tree scab, grape black spot disease, etc. Has a significant control effect.
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