What medicine is used for scale insects on persimmon trees?

Chlorpylophos is an ideal type of scale insect.

Pesticides, non-systemic insecticides, are used to control sagittal scales, chaff scales, wax scales, brown round scales, mealybugs, cotton aphids, cotton red spiders, cotton bollworms, alfalfa weevils and other pests and mites on fruit trees, cotton, vegetables and other crops. Moreover, it is not internal, safe and efficient, and can treat whiteflies and aphids.

Kill all beetles in seconds.

Green worms, the disadvantage is that the taste is a bit big.

Thiamethoxam. It is a second-generation nicotine with a completely new structure.

It is a high-efficiency and low-toxicity insecticide, which has stomach toxicity, contact killing and systemic activity against pests, and is used for foliar spraying and soil root irrigation treatment. It is quickly absorbed after application, and transmitted to all parts of the plant, has a good control effect on stinging and sucking pests such as aphids, planthoppers, leafhoppers, whiteflies, etc., and has a special effect on scale insects adults after being matched with phosphorus.

Silicone penetrants have a very low surface tension.

After adding pesticides in a certain proportion, pesticides can be made on the surface of plants with super spreadability, permeability and dispersion, wettability, efficient systemic and conductivity, especially on the surface of the foliar wax layer and other difficult to wet surfaces to achieve rapid wetting, dispersion, and penetrate into the pores of plants, improve the efficacy, rain resistance, and make the effect long-lasting.

Note: The three agents of phosphine, thiamethoxam and silicone penetrant complement each other and are indispensable. When applied, spray the leaves and spray the wet soil surface or irrigate the roots to kill the insect eggs in the soil, so that it can be killed, and the proportion of the drug is 1:

1500 times, take 1 gram of each agent, take a total of 3 grams, and then add 1500 grams of water.

1. Comprehensive control of persimmon pedicles: 1. Spraying control on trees - 7-8 days after the initial flowering period of persimmon trees (the peak period of adult emergence) spray 25% chlorpyramide 3 2500 times; or 2,500 times the profit of extinguishing and sweeping; or more than 1000 times; or 2000-2500 times of high-efficiency permethrin mid-July, manually remove and pick up the zombie fruit formed by the victim, and bury it deep in mid-month to early August, and the control of the first generation of adults (peak emeritation) is the same as above. The key part of the spraying is the fruit pedicle.

4. At the same time, the persimmon pedicle insect control was carried out on black jujube trees.

Second, the comprehensive control of persimmon scales In the first half of the month, the persimmon scales are sprayed on the trees at the peak of the stinging period of 1500-2000 times or 800-1000 times of the scale and the line of gray butterflies, which is meticulous and thoughtful. 2、

Summary. Scale insects on persimmon trees are controlled at the end of May.

The best time to control scale insects on persimmon trees is the hatching and hatching stage of larvae.

The best time to control scale insects on persimmon trees is mid to late May or mid to late August, and the best time to control larvae is when they appear.

The best time for the control of scale insects on persimmon trees is when the larvae have just hatched and shed their shells.

The best time to control scale insects is at the larval stage.

When is the right time to spray persimmon tree scale insects.

Scale insects on persimmon trees are controlled at the end of May.

Scale insects on persimmon trees are controlled at the end of May. The best time to control scale insects on persimmon trees is the hatching and hatching stage of larvae. The best time for the control of scale insects on persimmon trees is mid to late May or mid to late August, and the best time to control larvae is when they appear.

The best time to control scale insects on persimmon trees is when the larvae have just hatched and unshelled. The best time to control scale insects is at the larval stage.

Summary. 1. Spraying on the tree for control - 7-8 days after the initial flowering period of persimmon trees (the peak period of adult emergence) spray 25% chlorpyramide No. 3 2500 times; or 2,500 times the profit of extinguishing and sweeping; or more than 1000 times; or permethrin 2000-2500 times.

From mid-month to mid-July, the zombie fruits formed by the victims were manually removed and picked up and buried deeply.

From mid-month to early August, the treatment of the first generation of adult worms (peak emerging) is the same as above. The key part of the spraying is the fruit pedicle.

4. At the same time, the persimmon pedicle insect control was carried out on black jujube trees.

2. Comprehensive control of persimmon scales:

In the first half of the month, the persimmon scale is sprayed on the tree at the peak of the stinging period of 1500-2000 times of the lozenge or 800-1000 times of the speed scale gram and the line of gray butterflies, meticulous and thoughtful.

In the middle of the month, the first generation of eggs of persimmon scales hatched at the peak of 1500-2000 times of chlorchloride; Or 2000-2500 times of high-efficiency cyanide chloride, spraying key parts, branches, leaves, fruits, persimmon pedicles, and treating apple leaf curl moths, tea wing bugs, leafhoppers, etc.

3. Integrated control of persimmon caterpillars

At the end of April and the beginning of April, the trunk is sprayed with a ring; Spray the closed medicine ring in the main stem high rice, 15-20 cm wide, add 50 parts of water (or diesel) to one part of the medicine (pyrethroids), the density of the insect population is large, and spray the second time after 10 days.

In the middle and late months of the month, combined with the above-mentioned spraying to control persimmon caterpillars.

What is the best medicine for scale insects on persimmon trees.

1. Spraying on the tree for control - 7-8 days after the initial flowering period of persimmon trees (the peak period of adult emergence) spray 25% chlorpyramide No. 3 2500 times; or 2,500 times the profit of extinguishing and sweeping; or more than 1000 times; or 2000-2500 times of high-efficiency permethrin mid-July, manually remove and pick up the zombie fruit formed by the victim, and bury it deep in mid-month to early August, and the control of the first generation of adults (peak emeritation) is the same as above. The key part of the spraying is the fruit pedicle. 4. At the same time, the persimmon pedicle insect control was carried out on black jujube trees.

Second, the comprehensive control of persimmon scale in the first half of the month, persimmon scale stinging peak period on the tree spraying 1500-2000 times or speed scale gram 800-1000 times and treatment line gray butterfly, meticulous and thoughtful In the middle of the month, the first generation of persimmon scale eggs hatched in the peak period, sprayed 1500-2000 times; Or 2000-2500 times of high-efficiency cyanide chloride, spraying key parts, branches, leaves, fruits, persimmon pedicles, and treating apple leaf curl moths, tea wing bugs, leafhoppers, etc. 3. Integrated control of persimmon caterpillars At the end of April and early April, the trunk is sprayed with a spray ring; Spray closed medicine ring in the main stem high rice, 15-20 cm wide, add 50 parts of water (or diesel) with one part (pyrethroid), the density of the insect population is large, and spray the second time in the middle and late months of the month after 10 days, combined with the aforementioned spraying to control persimmon caterpillar and branch persimmon caterpillar.

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Now there are a lot of them, white, and the belly is red water! It's on the persimmon tree.

It's time to get your medicine done.

Clause. 1. Scrape the bark in spring and burn it intensively to eliminate the overwintering eggs. In early September (before the insect goes down the tree), tie a grass ring at 30 cm from the ground in the trunk of the persimmon tree, trap insects to overwinter, and solve the persimmon tree before germination in the spring of the second year, and burn it intensively, which can greatly reduce the number of insect eggs and reduce the trouble for later prevention and control.

During the dormant period of persimmon trees, that is, in March, the garden was cleared, and 1-3 times were sprayed with 5 Baumé stone sulfur mixture + 50% chlorpyrifos 1500 times.

Clause. 2. In the early stage of nymph dispersion and transfer, 1500 times of 50% chlorpyrifos + 2000 times of 10% imidacloprid wettable powder or 2500 times of avermectin emulsifiable concentrate can be evenly sprayed on the tree.

Clause. 3. Seize the peak period of nymphs in late April and early May, spray 1500 times of 50% chlorpyrifos or 3000 times of 5% acetamiprid or 2000 times of avermectin. In the early to mid-June, early to mid-July, early to mid-September and other generations of nymph damage peak, and then continuous spraying of the above agents, can effectively control the scale insects on persimmon trees.

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.

There are a lot of scale insects in the persimmon book, which cannot be controlled with salt water, if it is particularly serious, you can spray some ** drugs for this insect, which is more effective than salt water.

It cannot be controlled with salt water, although salt water can kill scale insects, but it also has great damage to persimmon trees.

The effect of saline is not very good, you can choose to use imidacloprid solution to kill insects, this medicine is more effective.

You can use a stone sulfur mixture to spray the tree in a comprehensive way, and the stone sulfur mixture is mainly to kill bacteria and kill the eggs of scale insects. When the scale insect is found, it can be treated in a timely manner with drugs, and the general selection of drugs can use copper thiazide, which can be sprayed before the evening, and if it is found when it is more, you can add a little additives to improve the time of attachment.

Summary. Hello, dear <>

In view of the problem of scale insects on persimmon trees, it is recommended to use phenol chlorocon 50% wettable powder for control. This agent can effectively control scale insects, have little impact on plants, and will not cause pollution to the environment. When using, the agent can be diluted according to the instructions on the package and sprayed on the leaves and branches of the persimmon tree, sprayed once every 7-10 days, and sprayed 2-3 times in a row to achieve a better control effect.

In addition to pesticide control, it can also prevent the occurrence of scale insects on persimmon trees by enhancing the immunity of plants, strengthen fertilization, ensure sufficient nutrition of plants, and enhance the disease resistance of plants; Regularly prune the branches and leaves of persimmon trees to keep them ventilated and reduce the breeding environment of scale insects. When using pesticides for prevention and control, it must be carried out in accordance with the instructions to avoid excessive use and avoid harm to the environment and the human body. In order to ensure the effectiveness of control, it is also necessary to regularly inspect the plants and deal with pests and diseases in a timely manner.

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What is the best medicine for scale insects on persimmon trees.

Hello, dear <>

In view of the problem of scale insects on persimmon trees, it is recommended to use phenol chlorocon 50% wettable powder for control. This agent can effectively control scale insects, have little impact on plants, and will not cause pollution to the environment. When using, jujube can be diluted according to the instructions on the package and sprayed on the leaves and branches of the persimmon tree, sprayed once every 7-10 days, and sprayed 2-3 times in a row to achieve a better control effect.

In addition to pesticide control, it can also prevent the occurrence of scale insects on persimmon trees by enhancing the immunity of plants, strengthen fertilization, ensure sufficient nutrition of plants, and enhance the disease resistance of plants; Regularly prune the branches and leaves of persimmon trees to keep them ventilated and reduce the breeding environment of scale insects. When using pesticides for prevention and control, it must be carried out in accordance with the instructions to avoid excessive use and avoid harm to the environment and the human body. In order to ensure the effectiveness of control, it is also necessary to regularly inspect the plants and deal with pests and diseases in a timely manner.

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Scale insects on persimmon trees can be controlled with thiazide, chlorpyrifos, and thiamethoxam.

Scale insects are an important pest of citrus and grapefruit, and the common ones are red round scale, brown round scale, Kang pian scale, sagittal scale and blow cotton scale. Scale insects are infested on leaves, branches and fruits. Scale insects are often male winged and able to fly, and females and larvae once feathered, live on branches, leaves or fruits for life, causing yellowing of leaves, wilting of branches, decline of tree strength, and easy to induce soot disease.

Persimmon tree scale insects generally harm the branches and leaves of persimmon trees, and in serious cases, they will also harm the fruit and drop the fruit, which seriously affects the quality and yield of persimmons.

Scale insects can be used when the newly hatched larvae have not yet begun to harm, using thiazide, chlorpyrifos, thiamethoxam, once every 7-10 days, three times in a row can achieve the desired effect.

Symptoms of harm

In early spring, after the sap begins to flow, the scale insects begin to feed, and after the female adults lay eggs, they can hatch mobile insects without waxy shells in a few days, which are the first hatching larvae. The larvae crawl on ornamental plants, and after finding a suitable place, they pierce their mouthparts into the body of the flowering plant, suck the sap, and begin to settle the life, causing the host plant to lose nutrients and a large amount of water.

Affected leaves often have yellow spots that fall off early in the future. After the young shoots and shoots are damaged, the poor growth often leads to yellowing and wilting. While injuring ornamental plants, some scale insects also excrete a large amount of honeydew, which leads to the occurrence of bituminous coal disease and makes the leaves unable to photosynthesize; Severely damaged plants, the tree declines, and finally the whole plant dies.