Autumn and winter diseases and pests control measures of winter jujube trees

After entering the autumn, the jujube tree gradually enters dormancy stage, and the resistance is high. With the decrease of temperature, the diseases and insects enter the bark seam, scar, branch, fallen leaf, fruit drop, stagnant fruit or latent in the soil to “overwinter”. Therefore, it is necessary to seize the favorable opportunity for prevention and control of autumn and winter pests, and combine pest control with pest control.
(1) After cleaning the leaves of fallen deciduous winter jujube trees, the litters, sick fruits, and weeds in the park should be cleaned or buried in a timely manner or burned in a concentrated manner to reduce the number of pathogenic bacteria and insects that pass through the winter.
(b) Deeply turning the date garden, especially in the barren land with poor land and high salt content, deep-fall 15-20 cm before the soil is frozen, can loosen the soil, save the rain and snow, promote the growth of the roots, and can also be in the soil. Overwintering pests turn to the ground and are preyed or frozen by natural enemies.
(c) scraping old tree bark, scraping, burning, or burying the old cracked skin, diseased skin, and insect skin at the branches, branches, and branches of branches in the early winter or early spring, which can effectively eliminate the wintering diseases in the rough skin. . The thickness of the scraped skin is preferably yellowish-green on the skin. After the scraping, apply 40% Fumeibi WP 10 to 100 times liquid or 5 to 10 Baumide Lithosulfur to protect the wound.
(D) after the tree trunk is coated with white jujube leaves, at the base of the trunk and big branches, the overwintering pests and diseases in the trunk are eliminated with a whitening agent. Whitening agent can be used 25 parts of water, lime 10 parts, 1 part of lime sulfur, 1 part of salt and a small amount of animal oil formulated, but also in the whitening agent by adding an appropriate amount of fungicide and insecticide to increase the effect.
(five) Artificial insecticidal jujube deciduous, combined with winter cut, cut off pests and branches, and can be removed on the branches of the big bag of moths, moths, cockroaches and other overwintering eggs, insects and other insects.
(six) spray prevention and treatment of jujube deciduous and before germination each spray 1 5 Baume degrees of lime sulfur plus 200 times sodium pentachlorophenol, can eliminate overwintering bacteria and eggs.
(seven) Sokcho seduce and kill winter jujube after picking, with straw tied to help the trunk base for a week to trap pests to grass in the winter, but also to prevent freezing damage. Unripe the straw before the jujube blooms and bring it to the park to burn it.
(8) The tying of the film prevents the early spring from tying a plastic film with a width of about 20 cm at the base of the trunk and binding the middle of the film with a poison rope to roll the film downward into a trumpet shape, which can effectively prevent the killing of tree pests.
(9) The tree discs cover the mulch in the early spring, which can prevent the ground bacteria and some insect pests from spreading to the trees. It can also inhibit the growth of weeds, increase the temperature, and reduce the evaporation of water.

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Hi I Am Crescent Zhang

Hi I am Crescent Zhang

Fresh Potato/Holland Potato

Fresh Potato,Holland Potato,Yellow Fresh Potato,Bulk Fresh Potato

Jining Fuyuan Fruits And Vegetables Co., Ltd. , http://www.fuyuanfv.com

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