jujube madness can be cured in the same year by injecting jujube madness No.1 and jujube madness No.2 into the trunk of jujube tree, and the diseased tree can bear fruit in the next year. Compound jujube red treasure can be sprayed on the fruit shrinkage disease, and 5 Baume lime sulfur mixture can be sprayed on the plant before germination. In addition, thiophanate methyl, fenoxanil and fenoxanil emulsifiable concentrate can be sprayed. If there are pests, dichlorvos can be used to control them, and omethoate and dixie emulsifiable concentrate can also be sprayed.

Common diseases in jujube tree planting

1. Jujube rust: Jujube rust is a common disease, which harms the growth of leaves and sometimes fruits. At the early stage of leaf disease, light green spots appear, and then turn into grayish brown. When the damage is serious, all the leaves fall off, and the tree is weak, which is serious in rainy and humid seasons.

2. jujube witches' broom: jujube witches' broom, also known as witches' broom, can be infected both on the ground and underground. It is mainly spread by grafting and leafhoppers. The soil is dry, barren, with poor fertilizer and water conditions, extensive management, serious pests and diseases, weak trees and serious diseases. After the disease, leaves turn yellow, branchlets cluster, and fruits are deformed.

main pests of cultivated jujube trees

1. jujube inchworm: also known as jujube budqu, larvae harm the growth of buds, leaves and buds, and often cause secondary germination when the situation is serious.

2. Peach fruit borer: also known as fruit borer, which mainly harms the growth of jujube fruit. Larvae eats in jujube fruit, leaving insect droppings in the fruit, causing fruit dropping, which seriously affects the quality of jujube.

3. jujube armyworm: it mainly harms the growth of tender buds and leaves, causing secondary germination, biting off flower stalks at flowering stage, reducing the amount of flower buds, eating young fruits at fruit maturity stage, resulting in fruit drop and decreased yield.

prevention and control of diseases and insect pests on jujube trees

1. Diseases: Jujube madness can be cured in the same year by injecting Jujube Crazy No.1 and Jujube Crazy No.2 into the trunk, and jujube can bear fruit in the next year. Compound jujube red treasure can be sprayed for fruit shrinkage, and 5 Baume sulfur mixture can be sprayed before plants germinate. In addition, thiophanate methyl, fenxiuning EC and mancozeb can be sprayed to prevent and control diseases.

2. Pests: Dichlorvos can be used to control jujube trees before germination in spring, omethoate can be used to control scale insects in larval stage, enemy-killing emulsifiable concentrate can be used to control jujube bugs, and pyrethroid pesticides can be used to control jujube koji and moth. Cerambycidae can scrape the topsoil, find the insect holes of Cerambycidae and inject dichlorvos emulsion into them.