What about the dried peach tree insects?

Peach is a fruit that many people like, and it is also a fruit tree with high economic value, but peach trees may have insects in the process of growth, so what about peach trees with dry insects?

First, what about the dried peach trees?

Before the peach tree sprouts, the root of the peach tree is evenly sprinkled with insecticide, and then poured through water to effectively control many kinds of pests, such as peach aphid, Hawthorn red spider, tea-wing bug, scale insect and red-necked longicorn beetle, and to effectively control all kinds of pests on peach trees for more than half a year, without a variety of pesticides or frequent spraying, so as to achieve high efficiency, labor, time, labor and fruit safety.

Second, common pests in peach trees

1. Peach aphid: adults and larvae gather on the back of the leaves, the damaged leaves roll longitudinally from the edge of the leaves to the back of the leaves, the tissue becomes thickened and chlorotic, and excretes mucus to pollute the branches and leaves, inhibit the growth of new shoots and cause deciduous leaves.

Generally, there are more than 20 generations a year, overwintering with eggs on peach trees, or wingless female aphids in the wind barrier or with cruciferous vegetables in the vegetable cellar. If the peach tree overwinters with the eggs, the peach buds germinate to the flowering stage in the early spring of the following year, and the eggs begin to hatch and cluster on the tender buds to suck up juice. From March to April, parthenogenetic reproduction is harmful.

two。 Hawthorn red spider: 5-9 generations a year, overwintering with female adults in the soil, withered leaves and weeds near the tree bark and trunk. In early April, peach blossoms were stung at the end of blooming, endangering the new young tissue. Lay eggs after flowering, and hatch after falling flowers.

One month after falling flowers is the peak incubation period of the second generation eggs. After June, the temperature is high, the reproduction is fast, generations overlap, and the harm is serious, often causing a large number of fallen leaves. Until September, overwintering females occurred one after another, latent overwintering.

3. Tea-winged bug bug: adults and nymphs suck the juice of tender fruit, tender leaves and tender shoots. After the fruit is killed, it shows a convex and uneven abnormal fruit, and the flesh of the injured part becomes empty and corked. After the peach fruit was killed, the gum was flowed at the thorn, the flesh was sunken, the fruit became stiff and hardened, and the young fruit often fell off, which had a great impact on the yield and quality.

The adults overwintered under the eaves of the cottage and in the stone cracks, and began to sting in late April of the following year, flying to Taoyuan to do harm. It laid eggs on the back of the leaves in June, and the egg period was about 10 days. It began to hatch in late July, clustered near the egg block, then gradually dispersed, began to Eclosion to adults in July and August, and found a suitable place to spend the winter in September.

4. Scale insects: scale insects use nymphs and adults to stab the host sap, and some of them completely cover the bark and overlap into layers to form uneven gray-white wax substances, which discharge mucus and pollute the tree in the form of oil, the damaged branches are underdeveloped, the heavy branches or the whole plant die, and the 2-3-year-old branches suffer the most.

It began to lay eggs in late April of the following year, and the eggs were laid under the shell and dried up and died after spawning. The nymph began to hatch in early May, and the nymph crawled everywhere on the branches after climbing out of the mother's full shell. Fixed after a few days, and began to secrete wax filaments, peeling to form a shell, piercing the mouthparts under the bark to suck the juice. After the second peeling, the female becomes an adult and sucks immovably under the shell, while the male becomes a pupa after the second peeling, which is dense on the branches. The first generation of adults began to Eclosion in mid-June. Spawning begins in late June.

5. Red-necked longicorn beetles: the larvae overwintered in the trunk decay path, resumed their activity in March-April of the following year, drilled irregular tunnels under the cortex and xylem, and discharged a large amount of reddish-brown fecal debris outside the hole and on the ground at the base of the trunk. The damage was the most serious in May and June, and when it was serious, all the tree trunks were eaten and died. When the larvae mature, they open a row of fecal holes outward, bond feces and sawdust with secretions, and pupate cocoons in the tunnel. In June and July, the adults emerged after Eclosion, and mating laid eggs in the coarse bark gap between the base of the tree and the main branches. After hatching, the larvae eat food under the skin and pass the winter through diapause. The following spring continued to eat the cortex, to July and August, upward to the xylem into a curved tunnel, and then through winter, to mature pupae and Eclosion into adults in May and June of the third year.