Pear tree post-harvest pest prevention

If improper management of pear tree after harvest, will directly affect the number and quality of flower bud differentiation, fruit production and quality of the following year. However, a considerable number of farmers have relaxed their management of fruit trees. This is very wrong. After picking the fruit, the pears remove the fallen leaves, rotten fruit, and weeds around the orchard in a timely manner. They are buried deep or burned. With the “General Tree Guard”, the garden was completely disinfected to prevent germs and insects from colonizing the trees and overwintering, becoming the source of diseases and insects in the second year. In the early spring of the following year, spraying again completely, eliminating the source of diseases and insects, reducing the incidence of pear diseases. It is also possible to eliminate a large number of overwintering germs and pests that lie in the rough skin, cracked skin, and trunk cracks of pear trees by scraping bark. Most of the rot germs, ringworm, ringworm, star caterpillars and red spiders in the fruit trees overwinter in the rough skin and cracks in the fruit trees. In the winter or early spring, the old skin of the pear tree was scraped with a spatula and then used as a “wounding and anti-corrosion film”. "Smear wounds closed in time to prevent soil, rain pollution, antifreeze, prevent chapped wounds. Protect the wound from healing tissue growth and infestation with rotten bacteria. The old scrape must be burned or buried deeply. After picking fruit, fungicides and insecticides can be used to prevent various pests and diseases of pear trees, protect the leaves, and prevent early defoliation, affecting the annual output. The use of chemical control must be added when the appropriate amount of "new high fat film" to improve efficacy, the best control effect. After picking the fruit, plowing the pear orchard can loosen the soil and increase the permeability. In addition, it can also reduce pests and diseases. The depth of ploughing around the tree tray is about 10 cm, 20-25 cm outside the tree tray. After ploughing, timely irrigation according to flooding. Through the deep fall of the orchard in autumn and winter, the pests hiding in the soil under the canopy of the tree can be turned out of the ground to allow the birds to feed or freeze. At the same time, the deep-turning can also bury the dead leaves on the ground and the pests hiding in the sub-algae underground. Pear trees are painted white before they are defoliated to prevent sunburn and frost damage, as well as to eliminate pathogens and pests that overwinter over the trunk.

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