Autumn fruit tree pests do more with less

Fruit diseases and pests can seriously affect the yield and quality of fruits. In the autumn, the pests that eliminate fruit trees can receive more effective results. There are mainly the following methods for exterminating fruit trees in autumn:

First, trapping and killing insects: the use of pests on the selectivity of overwintering sites, after the autumn in the big branches of fruit trees tied grass or broken sack sheet, trapped pests pupate winter, and then focus on killing. According to the survey, this method has an effect of collecting 47% to 78% of apple and pear borerworms, and it is also very good for spider mites, red spider mites, spiny leaf miners, leaf roller moths, and leaf roller moths. The trapping effect, especially when the density of overwintering worms was greater in the year, was more pronounced.

Second, the removal of fallen leaves: autumn and winter seasons, combined with pruning to remove the diseased shoots, insect shoots, and the orchard and its surrounding areas near the weeds and litter removal, centralized treatment, you can eliminate a large number of overwintering pests.

Third, ploughing the garden: Ploughing the garden is not only an important measure to improve the soil and promote fruit production, but also an effective method to eliminate overwintering pests. 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.

Fourth, chemical control: The fall is the red-necked longhorn, Sang Longquan and other long-horned larvae feeding on peach, plum, apricot, apple and other fruit branches dry period. If damage is found to fruit tree trunks, poisonous swabs can be removed after the excrement is removed, and the orifices are closed with slime; it is also possible to inject a large amount of 80% DDVP EC 1500 times directly into the wormholes, and then seal the holes with slime; The shallower parts of the larvae can be digged, smashed, and assassinated by wire.

Fifth, the deciduous dormancy period of fruit trees Clear Garden: spraying 1~2 times Baume 5 degrees of lime sulfur, etc., to harm the fruit trees of a variety of scale insects, red spiders and apple rot, pear tree scab, grape black spot disease And so on, have a significant control effect.