Answer: Drill small holes in the rhizomes of diseased jujube trees, and instill 500ml of 0.1 tetracycline solution into each diseased tree, or Spray 75-100kg of 0.2 ferric chloride solution per acre, once every 5-7 days, 2-3 times a day. Cut off infected branches and leaves, and girdle the tree before the sap returns to prevent the movement of pathogens.

1. How to treat jujube tree madness

1. Jujube tree madness refers to the jujube tree being infected with jujube madness disease, which is caused by jujube phytoplasma infection. Trees are a big threat.

2. Drill small holes in the rhizomes of the diseased jujube trees, and when they sprout in spring, instill 500ml of 0.1 tetracycline solution into each diseased tree, or spray 75-75 tetracycline per acre. 100kg of 0.2 ferric chloride solution is sprayed every 5-7 days, 2-3 times a day.

3. Cut off the infected branches and leaves, then take them out of the orchard and burn them to eliminate the pathogen. Plan out the roots. If any root fungus is found at the roots, kill it with glyphosate. If it is a jujube tree with only small branches affected, before the sap flows back to the roots (around October), cut off or girdle the base of the large branches to prevent the fungal pathogen from traveling with the tree nutrients. At the location, drill 3 rows of small holes along the circumference of the stem, reaching as deep as the xylem, then insert cotton wool soaked in 250 times of Congling liquid, and wrap it tightly with plastic cloth.

2. How to prevent jujube madness

1. Select seedlings and scions with strong disease resistance and no disease for grafting and planting, and soak the scions with 0.1 tetracycline hydrochloride solution for about 30 minutes. , can be sterilized and disinfected.

2. When fertilizing, apply more organic fertilizers, phosphorus and potassium fertilizers to enhance the disease resistance of jujube trees. At the same time, apply 250-300g of soil biological bacteria inoculant per acre to loosen the soil and improve the soil. environment.

3. During harvesting, clean up the weeds and dead leaves in the orchard to destroy the living environment of vector pests such as the Chinese diamond leafhopper and the concave leafhopper. Thereby cutting off the spread of disease.

4. From May to September, spray 50 parathion EC 250 times + 50 dimethoate EC 250 times, or 50 dimethoate EC 250 times + permethrin 250 twice the solution, or 2 days of avermectin 3000 times the solution, or 2.5 cyhalothrin 2000 times the solution, to eliminate vector pests, thereby preventing and controlling jujube disease.

5. Before the sap flows (the first time in early spring, the second time around October), peel the bark in a circular manner on the middle and lower parts of the main trunk of the jujube tree, with a width of 0.3-0.5cm, to prevent pathogens of movement.