Jujube lobular disease will affect the absorption of jujube trees, which is usually caused by many diseases and insect pests, such as planthopper, thrips and so on. At this time, jujube trees can spray thiamethoxam once every other week, and spraying for one month is almost enough. Spraying 25% thiamethoxam 10000 times per mu or spraying 25% thiamethoxam 100 ml per 100 liter of water.
Jujube is a fruit tree that loves to bask in the sun. After spraying chemicals, if you put them in a sunny place with the help of sunlight, you can recover faster. At the same time, it is necessary to cut off the diseased branches of jujube trees in time, which can reduce the consumption of soil nutrients by jujube trees, prevent pathogens from infecting other branches and leaves, make the situation more serious, promote the jujube trees to gradually recover their vitality and increase the fruit yield of jujube trees.
Control methods of jujube lobular disease
1. Strengthen the management of jujube orchard: regularly remove weeds in jujube orchard, do a good job in water and fertilizer management and disease control, and improve the ability of jujube trees to control pests and diseases.
2. Avoid jujube orchards near pine and cypress trees: When choosing plots for planting jujube trees, avoid pine and cypress orchards where cicadas gather and cut off the transmission route of insects. It is also necessary to spray pesticides in jujube orchards to eliminate transmission sources such as leafhoppers.
3. Avoid grafting diseased branches: During the grafting process of jujube trees, avoid choosing diseased branches, insist on collecting grafting ears and buds in jujube orchards not infected with jujube lobular disease, and select healthy and germ-free jujube trees for grafting propagation.
4. Remove diseased branches in time: the pathogen of jujube newly infected with lobular disease has not spread to the whole plant. The principle of removing diseased branches in time is to remove the backbone branches of diseased branches in order to achieve the best control effect.
Agriculture and Rural Bureau of Pingdingshan City, Henan Province-Jujube Disease Prevention and Control