The prevention and control of diseases and pests of fruit trees in spring is the key to prevention and control of fruit trees in the whole year. Through prevention and control of pests and diseases in spring, it can effectively control the density of overwintering populations of infectious pathogens, harmful insects, and mites, and reduce the damage of pests to fruit trees. In the spring, we must strengthen the prevention and control of apple tree rot, pear wood lice, locusts, mites, and mussels. The main measures are as follows:
Check the garden and scratch. In mid-March, it is the peak period of apple tree rot disease. The fruit farmer should check the occurrence of the disease in the whole garden from late February and find that the disease spots are promptly scraped off and the 843 recovery agent liquid is applied after scraping until the end of April.
Budding spray. Sprinkle 5 degrees lime sulfur in the buds of fruit trees. The best time is to control adult nymphs or nymphs, such as aphids, ticks, and persimmons that occur on pears, apples, pears, peaches, and apricots from the end of March to April 10.
Flowering scarab. During the flowering period of fruit trees, spray 500 grams of fluid on the canopy under the canopy. Before 4 pm every day, the beetle is shaken off the tree, causing it to touch the medicine and die.
Suitable for preventing worms. Peach, pear, apricot and other tree species can be used 10% imidacloprid 4000 times + 5% high-efficiency perhydrothrite 1000 times in the open period to control aphid and leaf roller.
Suitable for flood prevention. When the artichoke blossoms, it is best to use the biological agent 1.8% alizarin 5000 times spray on apples, peaches and apricots to prevent and treat fleas.
Strictly control rot disease. After the rot disease was found, general tree-protecting trees can be used to spray the trunks and branches to disperse them 1000 times. In severe cases, general tree-protecting trees can be used to coat the diseased parts of the trees and quickly form a protective film. Asphyxial killing of pathogens can prevent other viruses from landing on trees. Reproduction and multiplication make the fruit tree life command system wake up early. At the same time, water and fertilizer should be promptly irrigated to improve the disease resistance of fruit trees.
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