3M Face Mask,3D Disposable Mask,3D Folded Face Mask,Face Mask Applicator KUTA TECHNOLOGY INDUSTRY CO.,LIMITED , https://www.kutasureblue.com
How to eliminate the damage of jujube bud
Jujube buds have occurred in different degrees in many areas of China, which has become a limiting factor affecting the production of jujube in China. Jujube buds are adult mosquitoes, orange-red or gray-brown, larvae are quail-like, milky white, and have no feet. This worm injure the young shoots and young leaves of the jujube tree. The damaged leaves become brown or black later, and the petiole is formed off the layer. The worms occur early, have many algebras, and have a long duration of damage. They have a greater impact on the seedlings, saplings, and growth of mature trees. They are one of the main leaf pests of jujube trees. The prevention and control measures are as follows: 1. Ploughing and eradication of overwhelming insect sources: spraying 800 times the new high-fat membrane, and then shallow worms, can kill the old mature larvae into the soil. In the winter of December, the tree tray was turned slightly, and the insects were frozen and killed to eliminate the source of overwintering insects. 2. Canopy spraying: 15 days before germination, spraying a new high-fat membrane + tree general, destroy the source of pests and diseases, penetration-type elimination of viruses, closed disease replication and transmission path, growth, hanging bell period, the two spray Three times. 3. Clean up the insect source: In October, clean up the branches, leaves, and fruits on the trees and under the trees, and burn them centrally to reduce the source of overwintering insects. 4. To increase tree vigor: In November, spray the general tree guard to protect the body from frost and increase the tree potential in the coming year.