Jujube trees should be intercropped in the main producing areas as far as possible to prevent the roots of diseased plants from contacting with those of healthy plants, prevent the spread of pests and diseases, and carry out effective girdling, which can prevent the disease source from running in the trees. Before and after the flowering of jujube trees, 40% dimethoate pesticide acetamiprid and 500% west Paris wettable powder were sprayed on the trunk to kill the vector leafhopper.
Jujube lobular disease, also known as jujube madness, will make jujube unable to digest and absorb nutrients in the soil, which is usually caused by pests such as whitefly, rice planthopper and jujube gall midge. At this time, plants must spray thiamethoxam, thiamethoxam, dimehypo and other drugs once a week, and spraying for one month is enough. It is also necessary to immediately cut off the diseased branches of jujube trees, which can reduce the consumption of nutrients in the soil layer, prevent pathogens from infecting other branches, and make the situation more and more serious, promote the gradual rejuvenation of jujube trees, improve the fruit yield of jujube trees, and be conducive to the growth and development of jujube trees.
Jujube is a kind of fruit tree that likes sunshine. Generally, after spraying, jujube trees need to be raised in sunny and natural ventilation conditions. Under the irradiation of sunlight, it can promote the rapid recovery of jujube vitality and make jujube branches grow more luxuriantly.
Jujube trees suffering from lobular disease should be prevented according to the incidence. In fact, jujube lobular disease is jujube witches' broom disease, which is also a viral disease spread by sucking pests such as whitefly, rice planthopper and jujube gall midge. Once the disease is not eradicated, it is mainly to prevent pests from spreading the virus immediately. If some branches are sick, you can cut off the long branches that are sick; If it is the whole factory, there is no need to prevent it. It is suggested to plan it as soon as possible to prevent infection with other plants.
Cross-saw the trunk with a hand saw with phloem depth of 1Mm and spacing of 30~50cm for 4 or 5 times, which can block the downward spread of the disease source. If the disease is mild, after cutting off the branches, tetracycline, oxytetracycline and other antibacterial drugs are introduced into the phloem, which is effective, but it cannot be cured, and it needs to be injected again at the onset.