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What are the symptoms of jujube madness? How to maintain treatment?
Jujube witches' broom is a disease infected by viruses and Bacteroides. At first, it gradually developed from one or several branches, and with the development of the patient's condition, it spread to another branch and finally to the whole plant. The most prominent symptom of jujube witches' broom is that the branches are scattered and lose their green color. The abnormal germination of buds is reflected in that the positive buds infecting the annual growth and development branches and the hidden buds infecting the long-term growth and development branches all become growth and development branches after germination, and the buds on the regenerated growth and development branches germinate into branches again. If the branches are continuously grown step by step, a cluster of branches will be formed until the main buds at the top of the jujube tree stop sprouting for four times.

Comprehensive control method: Choose healthy seedlings, because pests and diseases can immediately infect new jujube orchards by greening seedlings, and carry many bacteria. When opening the orchard, choose healthy seedlings, and it is strictly forbidden to transport seedlings from the ward or epidemic area. It is necessary to breed disease-free green seedlings from disease-free jujube orchards by ear grafting, bud grafting or root splitting. When planting, choose healthy and strong green seedlings with thick stems, developed roots and dense leaves.

Using disease-resistant varieties, most jujube trees planted in Henan are concentrated in xinzheng city, with a wide variety. Using disease-resistant varieties is the key countermeasure to control jujube witches' broom, and disease-resistant Elaeagnus angustifolia varieties can be used as sticky wood to improve the stress resistance of peach trees.

Clean up the rural scenery, and deal with weeds and diseased leaves in the jujube garden in time after the jujube trees are in hand. There are many bacteria in the roots of jujube witches' broom, and many bacteria in the roots are the key primary infection sources of jujube witches' broom in the second year. After the roots and dead leaves overwinter, the bacteria will rise to the ground with the nutrients in the roots in the following spring, which is easy to cause jujube witches' broom and other jujube witches' broom diseases.

Improving fertilizer and water management: fattening jujube trees in their infancy. It is necessary to take circular furrow application and radial deep application as the leading factors, open a circular furrow with a depth of 40-50 cm at the edge of the trunk, apply base fertilizer evenly, cover the soil and water it, and carry out 1 time radial deep application every two years. With the stem as the core, dig a furrow with a radial depth of about 30 cm and a width of about 30 cm at a distance of 50 cm from the stem. At a certain distance from the stem, the ditch is relatively deep.