The Damage and Prevention of Citrus Aphids

Citrus aphids mainly harm citrus, peach, pear and persimmon. Often clusters of citrus shoots and sucking sap on young leaves cause the leaves to shrink and curl, hard and brittle, and in severe cases shoots wither and cause young fruit to fall off. It secretes a lot of honeydew to induce soot and attract ants to tree to affect natural enemies and reduce photosynthesis. Tangerine is also the media of citrus decay.
Control methods: (1) Agricultural control. Most of the common locusts are in the young part of the citrus. Therefore, for the shoots that are growing irregularly, they can be wiped out in a timely manner to eliminate the food chain and reduce the number of insect populations. During winter pruning, the damaged branches and locust branch can be cut off, combined with winter clearing garden to scratch the overwintering eggs on the branches. (2) Biological control. There are many kinds of locust natural enemies, which is an important factor restricting their growth and decline. In particular, insects and ladybugs are widely distributed and can often form large populations. They are the most critical natural factors controlling the occurrence of locust infestation. The protection of natural enemies is of great significance for the prevention and control of aphids. In spring and summer, the number of natural enemies is high, and it should try to avoid the use of highly toxic, long-acting, broad-spectrum insecticides. In the stage of locust occurrence, 10% imidacloprid wettable powder, or 0.3% matrine aqueous spray, etc. have good control effect.

Electric power source Operating Table , selection of Motor push rod power, high quality and reliability. Electric Surgical Table, 2. Use imported gas spring as the manual power source of the operating table, stable performance. Electric OT Table, 3. Operating table using medical-grade 304 stainless steel, more modern, cleaner and more convenient. Integrated operating table, Electric Surgery Table, 4. High-strength stainless steel bottom cover, compressive ability, anti-corrosion, easy to clean. 5 head and leg plate removable, easy to operate, provide more flexible surgical space. Electric Operation Table, 6. Hand control, and has a key switch to prevent misuse. 7. Operating table base has a fixed or mobile function, mobile and flexible, fixed and reliable. 8. Countertop optional built-in waist bridge, gallbladder, kidney and other operations to provide convenience. Hospital integrated operating table, 9. Optional built-in battery to protect the operating table without interruption. 10. Table optional longitudinal translation, to achieve all-C shooting.

Electric Operating Table

Electric Operating Table,Electric Hospital Beds,Electric Medical Operating Table,Medical Electric Operating Table

Shandong qufu healthyou Medical Technology co.,Ltd , https://www.kangerjian-medical.com