What should I do if my lychee tree has a lot of mealybugs?

This is a pest and is a mealybug, and there is a special drug to eliminate it.

According to the formula products designed according to the common insect pests and fertilizer characteristics of lychee, when controlling lychee pests or carrying out root topdressing, the amount of 2 kg per mu each time, 50 75 kg of water, stir to dissolve the particles, and then fully stir well, then spray.

control of fine moth pests, noctuidae pests, butterfly pests, spraying in the larval pest period and adult oviposition stage; To control lychee codling moth, spray the trunk in April and June to kill the larvae, once every 10 15 days; To control lychee bugs, spray during the nymph occurrence period and after the sting in the early spring of the following year in September and October or in the early spring of the following year; The control of lychee longan chicken, can be sprayed in the pest period, longan in April and June to lay eggs and hatch, the larvae have clustering, in the young age of the larvae spraying control effect is good; control of wax mealybugs, spraying at the peak and end of nymph hatching; To control lychee gall mites, spray them during the peak period of mites.

The number of sprays depends on the insect condition. The general safety interval is 7-10 days. Spraying this formula not only controls pests, but also has the effect of topdressing outside the roots and enhancing the strength of the tree.

In order to enhance the disease resistance of lychee, we can use a water-soluble fertilizer with amino acids from Vosch.

There are a lot of powders that we can borrow and we can use insecticides to kill mealybugs, which is a good way.

Wax mealybug, belonging to the order Homoptera, mealybug family. It is mainly distributed in Guangdong, Guangxi, Fujian, Taiwan, Yunnan, Guizhou, Sichuan and some areas of Hunan, Hubei, Jiangxi, Zhejiang, Shaanxi, Shandong and Hebei. In addition to citrus, the host plants also include grapes, longan, lychee, yellow bark, avocado, custard, jujube, tea, mulberry, banyan, holly, oleander, etc., which cause fruit trees to wither and drop fruits, affecting economic value.

Chinese scientific name: pile wax mealybug.

Latin scientific name: Nipaecoccus Vastalor (Maskell) detailed control methods are available.

Scale insects are the infestation. Foliar sprays such as thiazinone or thiamethoxam or phenoxycarb or acetamiprid or chlorpyrifos or veratrol or matrine can kill scale insects as long as they are sprayed on scale insects. When controlling scale insects, we must pay attention not to use highly toxic and highly toxic phosphorus (rapid culling) to prevent and control them, so as not to pollute the environment and endanger human health.

Buy some pesticide dichlorvos to fight.

Go to the local animal husbandry station, the information in the south is so developed.

The common pests and diseases that damage lychee are mainly gum disease on the trunk, foot rot and Phytophthora downy plywood that damages the fruit. The insect pests mainly damage the main trunk of the star cow and the branch of the branch, the poisonous butterfly moth and leaf roller moth that damage the leaf surface, and the pedicle borer and bug that damage the fruit. For the prevention and control of sulfur gum disease and foot rot, you can choose to manually scrape the sick class, and then use 800 1000 times of liquid tobuzin or carbendazim, and splash the diseased part twice in a row.

Prevention and control of Phytophthora downy: When the fruit is the size of the mother finger or the fruit surface is 1 4 1 5 red, it is controlled with 1000 1500 times of liquid Radomir or 800 1200 times of key closure alum. When preventing and controlling the starfish, use iron wire to pass through the wormhole, dip the dichlorvos stock solution with paper or cotton balls into the hole, and use artificial pruning to mourn the damaged branches to eliminate them.

Prevention and control of pedicle borer (also known as pedicle worm): Xie flower injection seeds, young fruit "soybean" size with 1500 2000 times liquid "Lesbenzene" spray on the crown, or with insect mites to kill 1200 2000 times liquid on the crown spray alternately, 2 3 times in a row, once every 5 7 days, in case of continuous rain or spray several times. Control of bugs (also known as fart insects) poisonous moths, butterflies, and leaf-curling moths:

The young fruit stage (mid-June to early July) is the most serious, and in early June, insecticides such as insecticide double, dichloride, and lesbenzene can be sprayed alternately to control 3 or 4 times in a row every 7 days.

Spraying method: choose high-quality and efficient sprayers, spray from the inside to the outside, from top to bottom and the ground in the canopy.

I'm also confused by others, some say mealybugs, some say scale insects, I don't know... Expect someone to answer.

@11$ whiteflies are too bad... Little strong. I can't kill enough.

Scale insects....Female adults and nymphs suck nutrients on the branches, and occasionally on the fruits and leaves. In severe cases, the shells are densely overlapped, forming branch surfaces and unevenness, weakening the tree, and destroying the whole orchard in 3 to 5 years. It can be controlled with cyfluthrin, matrine, halodioxapyr, pyridafen, etc.