The stem hoppers of fruit trees are mainly larvae feeding on branches and stems, causing the growth of the tree body to become weak, causing severe branches or whole plants to die. Therefore, combining winter pruning to eliminate its overwintering parasites and controlling the occurrence of pests in the coming year is an effective way to reduce losses.
First, the Tianni insects Tianni insects are Sang Tianniu, Star Longi, red dragons. One generation occurred in 2-3 years and endangered the xylem and medullary heart. The epidermis of the affected part was normal. There was a row of fecal holes at regular intervals, the insects were straight, and the red-brown worms were excreted on the ground. They were made of a small amount of liquid medicine with a cotton ball. The poison sticks are stuffed into the penultimate or second row of fecal holes, and all the fecal holes are sealed with wet mud, and safety is used during use.
Second, the genus of giardworms of the genus Giardiae is parasitised in apples and pear trees and occurs in 1 to 2 generations. It damages the superficial cortex, phloem and cambium, and the cortical layer of the damaged area is cracked. There is red mucous oozing outside the insect, commonly known as "Red oil." The insect spirals upward into an oval shape with brown insects piled inside. Apply insecticide to insects and kill their larvae.
Three, pear stems and pears Pyrus bee generation occurs one generation a year, female adults in April and mid-journal spawning in the phloem of young shoots, with its serrated ovipositor above the spawning site sawing, larval egg After the food is harmed, it reaches the biennial branch and settles in winter. During the winter cut, the cut piles were burned.
4. Grape-turned-wing moth Grape-turned-winged moth is a major pest of grapes and occurs in 1 year in 1 year. It damages the shoots of larvae and affects the growth of shoots and fruit development. After pith is eaten, shoots often become enlarged and become tumorous. Winter in it. When cutting in winter, remove swelling stems and concentrate. For coarser vines, cotton maggots can be used to stuff the boreholes and eliminate larvae.
There are 4 types of products can be choosed-Fine, Derm, Derm Deep,Ultra Deep.These 4 products make it possible to quickly and effectively meet the vast majority of patient's needs for correction and augmentation of wrinkle and folds.
Top-Q Dermal Filler,Top-Q Hyaluronic Acid Dermal Filler,Dermal Filler Hyaluronic Acid,Hyaluronic Acid Injectable Filler
Qufu Hi-Tech Trading Co., Ltd. , https://www.chinahyaluronic-acid.com