Jujube treeAs a kind of belovedFruits, not only has the ability to nourish the spleen and stomach,Nourish the blood and calm the nervesIt also has rich nutritional value. However, in recent years, due to the fact that most fruit growers are interested inJujube treeof extensive management, resulting inJujube treeA large number of pests and diseases spread and multiplied, among which jujube turtle waxScale insectsbecame a serious problem. This article will delve into the types, diseases and prevention methods of jujube turtle wax scales.
Jujube turtle wax scale is a speciesScale insects, also known as the Japanese wax scale, can be harmful more than thatJujube tree, which also includes apples, pears, peaches, apricots, hawthorns, etcFruit trees, as well as plants such as magnolia, holly, and bauhinia. They are available in:NymphsIt sucks the juice on the jujube leaves and excretes a large amount of excrement, causing the jujube leaves to be parasitized by black mold and affectedPhotosynthesis, causedJujube treeThe degree of defoliation and death is quite serious.
Jujube turtle wax scale is harmful to cropsPestsOne of the female adults is about 2mm long and 1 mm wide5mm, small body size. WhileNymphsAt first incubation, the body is flat and oval-shaped, with a length of about 0Around 5mm. NymphsAfter fixation on the blade, a white wax shell gradually forms around the body and gradually thickens to form a wax armor-like shell. Mature females, on the other hand, are larger in size and have protruding shells on their backs, which are shaped like tortoise shells.
Due to its strong reproductive ability and strong adaptability to the environment, the jujube turtle wax scale is inJujube treeThe harm in the planting process is more serious, which brings great trouble to fruit farmers.
InJujube treeDuring the dormant period, combined with winter pruning, the diseased and insect branches should be cut off in time and burned intensively. This is followed by a spray of 7%.DieselEmulsion, after spraying, hit the branches with a wooden stick to shake off the insect body. This method has a good control effect on the first instar larvae. At the end of June to the beginning of July during the growing season, 02%-0.4%.DieselEmulsion spraying to control newly hatched larvae. At the same time, others can be addedOrganophosphatespesticides to improve control effectiveness.
The natural predators of the jujube turtle wax scale include the long shield goldWasps, JiWaspsLadybugsand predatoryInsectsWait. Growers need to protect these predators and promote their biological control effects. LacewingsWait. InsectsIt is also a natural enemy that can be exploitedPests, which can be protected together.
Due to the damage of the jujube turtle wax scaleJujube treeThe tree is weak, grows slowly, has difficulty forming flower buds, has low yields, and has poor fruit quality. Therefore, in the process of prevention and control, it is necessary to increase the application in a timely mannerOrganic fertilizermaterial, improve the soil environment, increase the resistance of the tree, and contribute to the recovery and growth of the tree.
According to the characteristics of jujube turtle wax scale, the spraying time has an important impact on the control effect. InNymphsThe initial peak of incubation is the appropriate period for spraying. The rational use of pesticides can effectively control the reproduction and harm of jujube turtle wax scales.
Jujube turtle wax scale as a serious hazardJujube treeofPests, which has had a serious impact on the yield and economic efficiency of fruit growers. Therefore, fruit farmers should strengthen the prevention and control of jujube turtle wax scales and take scientific and reasonable control measures. This includes the rational use of chemicals and the addition of chemicalsOrganic fertilizermaterials, protection from natural enemies and other methods to improveJujube treeThe insect resistance ability to prevent the mass reproduction and harm of the jujube turtle wax scale. At the same time, scientific research institutions andAgricultureThe department should also strengthen the research and promotion of control technology for jujube turtle wax scale, so as to provide more scientific control plans for fruit farmersFruit treesThe development of cropping and the income of farmers.