How to prevent scale insects is the best, and how to prevent scale insects

Common scale insects.

We say that there are many kinds of scale insects, so let's give you a brief introduction to several common scale insects, and see which ones you have encountered in your orchard?

Red round scale: Red round scale, also known as red round scale insect, is widely distributed, mainly for citrus damage. Adults and nymphs suck the sap on the host's branches, leaves, and fruits, causing leaf loss, fruit drop, and even tree death in severe cases.

The red round scale damages the leaves.

Brown round scale: Brown round scale, also known as tea brown round scale, is distributed in various citrus producing areas.

Brown round scale. Pityll scale: It mainly harms more than 180 kinds of plants such as citrus, apples, and pears.

The chaff scale harms the fruit.

Sagittal scale: Sagittal scale, also known as sagittal shield scale, is distributed in citrus producing areas.

Sagittal scales damage the fruit.

Black spot scale: It is more serious in South China and Southwest China, which will delay fruit ripening and induce soot disease. Citrus is more serious.

Black-spotted scales damage leaves.

Blowing scale: It is widely distributed, likes warm and humid climate, and is easy to induce soot disease.

Blowing cotton scales. Wax mealybug: The citrus area of South China is more serious, with the highest insect population density and the most serious damage from April to May and October to November.

Pile wax mealybugs. There are so many types of scale insects that I won't introduce them to you here. In fact, in addition to caring about which are the common scale insects, presumably everyone is most concerned about how to control scale insects, and the following will share some of the content in this regard.

Precautions for scale insect control.

Seize the timing: scale insects are difficult to control, the main reason is that the thick protective layer, so we must grasp the time when preventing and controlling, and kill them in time when the waxy shell has not yet formed, that is, the nymph stage. Everyone should remember that the first egg incubation period of the scale insect can be sprayed to kill it in April and May, which is the best effect and the most cost-effective at this time.

Reasonable spraying: during the first egg incubation period of scale insects, continuous spraying every other week: chlorpyrifos, avermectin, acetamiprid emulsifiable concentrate, thiazinone wettable powder, imidacloprid and other sprays. It can also be sprayed with stone sulfur mixture before germination, and the effect is better.

Correct medication: Choose the right time and medicine, and use the right method. Since scale insects like to gather in areas that are not easy to contact with pesticides, such as fruit pedicles, branches and the back of leaves, they must be sprayed repeatedly and comprehensively.

Scale insect control methods.

When it comes to the prevention and control methods of scale insects, there are many kinds of methods, such as strengthening on-site quarantine; protection and utilization of natural enemies such as ladybugs and lacewings; Remove insect eggs in winter to reduce the source of insects; Of course, there are also pharmaceutical treatments, such as deltamethrin EC, clefluthrin EC, avermectin and so on.

Although it is difficult to eliminate scale insects, intelligent humans always have thousands of ways to kill them, including the physical methods, comprehensive agricultural methods, chemical agents, etc. just mentioned. But no matter which one it is, for the farmers, the scale insect is still the hatred in their hearts, and they can't wait to use any way to catch it. But I don't know when to prevent and treat it, and I don't know what medicine to use.

Therefore, scale insects still plague many people today.

How to prevent and control peach tree scale insects and how to kill scale insects.

Extermination method: When the number of scale insects is not large, such as a few hypertrophic scale insects on the back of the stem and leaves, if it is not serious, you can use a needle, tweezers, toothpicks and other small tools to pick and prick to death.

Vinegar method: Wet the vinegar diluted about 500 times with a cotton swab, and then gently wipe the insect infestation, which can wipe off the scale insects and eliminate them, which is only suitable for the situation that the insect infestation is not serious.

Alcohol method: If the number of scale insects is too large and the leaf surface is densely packed with a large area, you can use a cotton swab or brush to dip the concentration of alcohol above 75% and wipe the insect infestation site repeatedly, which can effectively remove the scale scale insects.

Answer: If you want to completely eliminate the scale insect, you need to spray it with a special drug in the early stage of the plant disease, the scale insect is very harmful, and if it is not eliminated in time, it is easy to cause the plant to wither and die, if you want to avoid it from producing scale insect, you need to cut off the excess branches and leaves during daily maintenance, and apply thin fertilizer frequently during the plant growth period.

Scale insect is a pest that harms plants, if you want to completely eliminate it, we need to use special insecticides to spray the plant in the early stage of the disease, such as "cocoon must be cured" 750-1000 times liquid, etc., generally every 5-7 days can be completely eliminated by spraying twice in a row.

Indoor flowers and plants are susceptible to scale insects? Teach you quick solutions and prevention.

To prevent scale insects, it is necessary to give the plant a suitable growth environment, reasonable watering and fertilization during the maintenance period, and to keep the environment ventilated. During the growth period, spray the plant with fungicide once between 20 and 30 days, which can effectively prevent pests and diseases. If there are scale insects on the plant, it is necessary to cut off the leaves and branches in time, and then spray the plant.

Scale insects mostly occur in spring or summer, and plants are susceptible to scale insects in a high-temperature, dry and closed environment. In order to avoid the infestation of scale insects, reasonable watering and fertilization are required during the maintenance period, which can enhance the disease resistance of plants. During the maintenance period, the windows should be opened frequently to maintain indoor air circulation.

During the maintenance period, regular spraying of fungicides on plants can effectively prevent pests and diseases. During the curing period, the plant can be sprayed with a fungicide once between 20 and 30 days, such as chlorothalonil or carbendazim. Do not put the plant in a sunny place after spraying, you can put it in a cool and ventilated place indoors for maintenance.

If the plant is attacked by scale insects during the growth period, it is necessary to cut off the leaves and branches of the plant and burn them intensively to cut off the source of infection. If there are a small number of scale insects on the stems and leaves of the plant, you can use soapy water, washing powder, pepper water, cigarette butt water or pepper water to remove insects.

If there are a large number of scale insects on the stems and leaves of the plant, it is necessary to spray the plant with relevant chemicals to remove the insects. You can spray plants with chemical agents such as carbendazim, flower protector, worm forest or rapid culling, and the agent can be sprayed once for 1 time between 7 and 10 days, and after spraying 3 or 4 times in a row, it can inhibit pests and make the plant recover.

After the plant is infested by scale insects, if the number of pests is small, after cutting off the insect leaves, you can use pepper water or soapy water and other water solutions to spray the plants, which can get rid of the scale insects. If the number of pests is large, carbendazim or chlorothalonil can be used for insect control. After the plant recovers in the later stage, spray the plant once every 20 days to prevent insect pests.

Scale insects are common insect pests of flowers and plants, which mostly occur in spring and summer, and plants with poor growth are generally attacked by scale insects. If there are a small number of scale insects on the leaves of the plant at the initial stage, you can spray pepper water, soapy water, cigarette butt water or pepper water on the flowers and plants, and spray them continuously for 3 or 4 times to get rid of the pests.

If there are a large number of scale insects on the leaves of the plant, the plant needs to be pruned and sprayed to remove insects. Use a sterilized knife to cut off the branches and leaves of the plant and burn them intensively to cut off the source of infection. After pruning, the plant can be sprayed with carbendazim, chlorothalonil or imidacloprid and other agents, sprayed once in 7 10 days, and sprayed 3 times in a row to get rid of pests.

If the potting soil and the branches and leaves of the plant are full of scale insects, after cutting off the leaves, disinfect the plants and replace the potting soil. After pruning the plant, it can be soaked in carbendazim solution for 20 to 30 minutes, and after soaking, it can be placed in a ventilated place to dry. Choose new potting soil, after disinfection, the plants can be transplanted into new pots, and during the maintenance period, water control is required.

After the plant recovers in the later stage, the plant can be given sufficient light, fertilizer and water, which can promote plant growth and enhance the plant's disease resistance. During the maintenance period, it is necessary to do a good job of insect control, and it is necessary to spray the plant with insecticides regularly. Generally, the plant can be sprayed once between 20 and 30 days, and after spraying, the plant can be placed in a ventilated position.

1.If a small number of scale insects are found, they can be manually removed and directly eliminated.

2.If there are a large number of scale insects, you can choose to discard the plants with the insects, and throw them away along with the pots.

3.You can also use insecticides that kill scale insects, and pay attention to the concentration of insecticides should be diluted before spraying.

4.In the larval stage, scale insects can be sprayed with low-toxicity agents such as flower protection, quick culling, and matrine, which can have a good effect.

5.When it comes to the adult stage, these agents can play a certain role, but it is difficult to **, and I still feel that I have not killed it after using it.

6.At this time, three agents can be used: phosphorus, thiamethoxam, and organosilicon high penetrant, which cannot be used alone, and need to be used alternately to play the best role.