Tea treasure is the cash cow of tea farmers, properly managed and cultivated, and the source of money is generated, and the insect pests of tea plants are undoubtedly a roadblock to wealth.
There are many kinds of diseases and insects in tea trees, with more than 400 kinds of common pests and more than 40 common pests.
Insect pests are mainly insects, and a small number of mites take advantage of the void.
They generally bite the leaves and absorb the sap of the tea plant, which leads to a decrease in tea production, the growth of the tea plant is weak, no one treats it to a serious time, and even the tea granules are not harvested.
It's a dead end.
Introduces several common scourges of the tea tree's little villains:
<h1 class= "pgc-h-arrow-right" > prosthetic-eyed leafhopper</h1>
This pest is basically found in all tea-producing areas in the country, it mainly plagues new branches, sap is sucked away, branches shrink and harden, and the threat to summer tea and autumn tea is the greatest.
Adults and larvae are light-afraid and love young leaves, and move on the back of new branches and young leaves in the tea bushes when the dew has not yet dried up in the morning.
The worm has two peak periods of the year: late May to mid-June and October to November.
These two time periods should pay attention to its lurking, whether it appears, once it appears, quickly kill in one move, and stop loss in time.
The control generally uses 40% Leguo, 50% octyl thiophos and 2.5% Uranus, according to the tea garden area, matching the dose, spraying.
At the peak of adult insects, 25% chlorpyrifolidine (50-75g/mu) needs to be sprayed, and the medicinal properties can last for up to a month.
<h1 class= "pgc-h-arrow-right" > black betula</h1>
This insect is seriously affected by tea gardens in Jiangsu and Zhejiang regions, and people with dense phobias are estimated to be a little uncomfortable when they see it.
Generally, the larvae suck the juice on the back of the tea leaves and secrete excrement to induce other diseases, showing a layer of black mold in the branches and leaves.
In severe cases, even the whole tea garden is black, and there is no green in sight, which seriously affects the quality and yield of tea.
The worm occurs in 4 generations a year, covering almost all seasons throughout the year, so it needs to be paid close attention to.
The focus of pharmaceutical prevention and treatment should be placed on the first generation (March to April), and the management before and after wintering.
The drug is mainly mixed with 25% chlorpyrifos, according to the area of the tea garden, at a dose of 75-100g / mu, when spraying, it should be ensured that the insect body on the back of the tea leaves is in contact with the liquid.
<h1 class= "pgc-h-arrow-right" > long white borer</h1>
This insect occurs more often in Jiangnan, Jiangbei, Sichuan, and Taiwan.
In addition, in recent years, due to the frequent application of pesticides in local areas, the insect infestation has developed resistance, and the pest has shown an upward trend, which greatly threatens the output of tea.
It looks a bit like a marshmallow, but the curse is profound.
The pest is in three generations a year, mainly from late March to late April, mostly hatching on sunny days, and the larvae can spread with the wind and spread rapidly.
Considering that the general agent is not easy to penetrate into the shell, it is necessary to control it during the first generation of egg incubation.
Spray 50% malathion, 25% iminothion or 25% quetiphos with dose spraying.
Considering that his resistance has increased year by year, it is necessary to use pesticides rationally, strictly control the number of sprays, protect the natural enemies of insect pests, and achieve the control effect in the most ecological way.
Of course, no matter what means, there is only one result, that is, to cut off my financial road and kill him.