There are many white granular insects growing on the persimmon tree, and there is a red blood sample

1) Pay attention to the scion**, do not let the scion with insects be introduced. Seedlings that have insects should be disinfected before planting.

2) At the beginning of February, scrape off the old bark at the base of the trunk, apply sticky shellac with a width of about 10 cm, prevent the adults and nymphs of the tree, and use a brush to remove the adhered dead insects every day, and the effect is good.

You can buy some special anti-bug drugs and spray them at the peak of the bug's reproduction, so that you can effectively prevent the spread of these bugs and protect our fruits.

You can pluck the leaves with insects, and then take them to the person who sells pesticides to ask for clarification, and directly buy pesticides and spray them.

Persimmon tree pest control.

First of all, the persimmon scale is a very serious insect pest of persimmon trees, persimmon scale is a very serious insect pest that often occurs in persimmon trees, persimmon scale is a kind of scale insect, belongs to a very difficult to kill insect pest. Persimmon scale is a white scale shell with white sticky hairs, which looks like poplar catkins, and if the scale insect is wiped off, there will be red liquid flowing out, in short, it is a very disgusting and annoying insect. Once the scale insect occurs, it is very difficult to eliminate, and the surface of the scale insect scale insect has waxy substance on the surface of the scale insect and has strong resistance to insecticides, so it brings great difficulties to the insecticidal work.

The persimmon scale seriously affects the growth of the persimmon tree, especially the most serious damage to the persimmon, the quality of the fruit is seriously damaged, the formation of fruit drop, etc., and the trunk will die.

Therefore, once it happens, it is necessary to carry out insecticidal work in a timely manner, often use tachyscale grams to effectively spray insect pest areas, and then it is very important to find them in time, and then if persimmon scales appear in the fruit stage, you can choose to spray chlorpeats for effective spraying and control.

There is also a kind of bug, which is, the persimmon star inchworm. Persimmon star insects mainly eat the leaves by larvae, and in severe cases, they will gnaw all the leaves, which seriously affects the photosynthesis of persimmon trees. The control method is to kill the larvae after shaking from the persimmon tree at the stage of high larval incidence, and can also be sprayed for control.

In late autumn or early spring, the soil around the trunk can be turned over to kill pupae.

Persimmon cotton mealybug, cotton mealybug is a kind of scale insect, adults and nymphs mainly rely on sucking the juice of leaves and branches, and in severe cases, it will also damage the fruit, affecting the quality and yield of persimmons. If you want to get rid of it, you can spray stone sulfur mixture to kill nymphs after the persimmon tree has fallen its leaves or before germination in autumn, or you can scrape off the dead bark of the persimmon tree before wintering to eliminate the nymphs that are lurking in the dead bark and preparing to overwinter. During the stinging and hatching period of nymphs, spray in time to eliminate larvae.

Quoting the social variety

White insects appear on persimmon trees, most likely persimmon scales. The use of pesticides to control, in early spring persimmon tree germination, spray Mido stone sulfur mixture or diesel emulsion, before the nymphs have not formed wax shells, spray scales to kill special or scale shells to kill emulsifiable concentrate, and other pests after the wax shell is formed, can be sprayed 800-1000 times the solution of wax scales.

The small white worms on persimmons are also known as persimmon scales, commonly known as tree lice, which are one of the main pests of persimmon trees. After the persimmon tree is infected with the disease, it will harm the young branches, young leaves, fruits and other positions of the persimmon tree, resulting in yellow-green dots on the damaged position of the persimmon tree, and then gradually expand into black spots, so that the persimmon is soft and fall off, so that the yield is reduced, and it will also affect the quality and ornamental effect, and the harm to the persimmon tree is greater. Persimmon.

2. Prevention and control measures 1, pastoral cleaning: do a good job of pastoral cleaning, cut off and burn the remaining diseased and insect branches on the persimmon tree, so as to reduce the appearance of pests from the source. 2. Protect natural enemies:

Protecting the natural enemies of persimmon scales, such as red-spotted ladybugs, grass frogs, and black-edged ladybugs, can control persimmon scales. 3. Strengthen management: manage persimmon trees, apply fertilizer reasonably, and water them appropriately, which can improve the disease resistance of persimmon trees.

4. Pesticide control: Before the persimmon tree germinates, you can spray a 5-degree stone sulfur mixture and 5% diesel emulsion of Baume, which can eliminate the overwintering nymphs. In the spring, before the overwintering nymphs leave the overwintering position and have not yet formed a wax shell, they can be sprayed with 40% dimethoate 1500 times solution or 50% dichlorvos 1000 times solution.

When the wax shell of the persimmon scale is formed, you can spray 800-1000 times the solution of wax scales to completely remove the pests.

If there are bugs on the fruit trees, this is the place where you can sell pesticides. Describe the appearance of the insect to the salesperson, or take a picture. Then ask the salesperson to give you some anthelmintic medicine.

Hello friends.

This is a typical persimmon cotton scale, once the worm is wrapped in a waxy layer, there is no potion that can do anything to it.

The following are some of the flower scale insects, more direct control methods, the usual agricultural control, our professionals are also difficult to master, the reproduction period of scale insects, and the wax layer formation period, pesticides are only useful for larvae, the resistance of adults is strong, and the medicine can not penetrate the waxy layer. Here are a few simple ways you can try.

Mix liquor with water in a ratio of 1:2

When treating insects, water the surface layer of the potting soil thoroughly. Scale insects at room temperature in the spring7

, start the activity. Available in 4

Water once in the middle of the month, and then every half month or so thereafter, for 4 consecutive years

times effective. Use vinegar (rice vinegar) 50

ml, put the small cotton ball into vinegar and soak it, and gently rub it on the stems and leaves of the affected flowers and trees with a wet cotton ball to wipe off and kill the scale insects. This method is convenient and safe, which can not only achieve the purpose of insect control, but also make the damaged leaves green and shiny again.

Gently and repeatedly rubbing the diseased plant with alcohol can remove the scale insects, and it can be removed very cleanly and thoroughly. If you wipe the orchid leaves with alcohol, not only can you get rid of the scale insects, but also the larvae that are not clear to the naked eye, and they are completely killed.

Press with diesel, laundry detergent, water.

The proportion of 6 is adjusted to the mother liquor, and the mother liquor contains 60% at this time

It is milk-like, diluted with water and contains 30% oil

After the solution, carefully spray the scale insects on Milan, kumquat, and cycads. After one week, most of the scale insects changed from fresh orange to shriveled state, indicating that this method has a good control effect on scale insects.

The white insects on the persimmon tree, usually pay attention to prevention, keep the persimmon orchard clean, cut off the remaining diseased and insect branches on the tree, scrape off the old rough bark on the trunk, and destroy it after cutting it off. Protecting natural enemies can have a certain degree of control over insect pests. The use of pesticides, before the persimmon tree germinates in early spring, you can spray 5 Baumé stone sulfur mixture or 5% diesel emulsion, which can eliminate the overwintering nymphs.

It is a scale insect, and the best way is to brush off the overwintering insect with a brush in winter, and spray 400 times of cococoanine or 800 times of 16o5+ laundry detergent in early May.

This is a scale insect, persimmon scale, stinging persimmon.

The juice of the persimmon will absorb the water of the persimmon when it is severe. This pest should be better controlled in early spring, and now it is more used for dimethoate. When the persimmon is ripe in the later stage, it is not suitable to use strong pesticides for prevention and control.

The use of general contact insecticides for prevention and control is sufficient, but the key is to grasp the timing. To spray when the overwintering nymphs just crawl out of the shell, generally when the persimmon tree has just germinated, it can be sprayed once every 10 15 days, and sprayed many times in a row to achieve good results; When the shell grows up, the spraying cannot touch the insect body, and it will not be effective.

Hello? Happy New Year, everyone?

For your reference: ** The description is a scale insect, the control can be carried out in early spring after the persimmon flowering, and the control method can be controlled by chemical agents, the agent can be purchased nearby, and if it is convenient, you can also use Mu Wangte 1000 times the solution plus the auxiliary No. 2 2000 times the solution, and the second spray is carried out at an interval of 15 20 days.

Thank you for your question.

Hehe, it is a mealybug, which is a kind of scale worm, and is generally controlled with chlorpyrifos and acetamiprid.

Is it this kind of bug, this is called persimmon scale, commonly known as tree lice.

It is also called persimmon cyst and persimmon felt scale, which refers to a kind of persimmon tree.

One of the main pests.