"Quadrilogy" of Fruit trees killing pests in Autumn and Winter

(Agricultural Wealth Network) The end of autumn is the decline period of orchard pest activity, the peak period for pests to find habitat and lay eggs, and the best time to eliminate fruit tree pests. Therefore, the elimination of pests and diseases after harvest of autumn fruits is the most important thing and cannot be taken lightly.

1. Pruning and removing residual branches and fallen leaves In autumn and winter, combined with pruning to cut off dead branches, diseased branches, diseased tips and insect tips, and to remove weeds and dead leaves from orchards and their surroundings, and burn them intensively, a large number of overwintering pests can be eliminated. After trimming, the wound should be coated with grease in time,"healing antiseptic film", sealing the wound and protecting the wound from healthy healing.

II. Cultivate the garden

Garden ploughing is not only an important measure to improve soil and increase fruit yield, but also an effective method to eliminate overwintering pests. Through ploughing, pests and germs in deep soil can be turned to the surface and frozen to death, dried to death or pecked by natural enemies, so that pests buried deep underground can not emerge and suffocate, thus reducing the overwintering base.

III. Trap and kill insects

By using the selectivity of pests to overwintering sites, after autumn, tie straw or broken sacks on the big branches of fruit trees to induce pests to pupate and overwinter, and then kill them intensively. According to investigation, this method has a good trapping effect on apple fruit borer and pear fruit borer up to 47%~78%, and also has a good trapping effect on hawthorn red spider, jujube sticky insect, spiral leaf miner, apple leaf roller, brown leaf roller, etc., especially when the population density of overwintering insects is relatively high in that year, the trapping effect is more obvious.

IV. Chemical control

During the dormancy period of fruit tree leaves, the diseased spots of fruit trees are scraped, the rotten skin and diseased skin are lifted, and the "tree protection general" is smeared, so that the diseased skin can quickly dry and fall off, and then the whole garden is sprayed with the tree protection general to sterilize and disinfect, so as to protect the tree body safely through winter.

Fruit tree diseases and insect pests seriously affect fruit yield and quality. Eliminating fruit tree pests in autumn can get twice the result with half the effort, so we must do a good job in disease control in order to harvest next year.