What medicine is better for celery aphids, and what drugs are used to control vegetable aphids?

Aphids, also known as greasy insects, can cause damage throughout the growth period of celery. Aphids suck vegetable juice with stinging and sucking mouthparts, and the leaves curl and shrink after being damaged, turn green and yellow, and the plants do not grow. In addition, aphids can transmit a variety of viral diseases, and the damage caused by them is often greater than that of the aphids themselves.

Aphids can reproduce for more than 10 generations per year in North China, overwintering on the host with eggs or overwintering or continuing to reproduce on greenhouses and vegetables with adult aphids and aphids. Therefore, celery in the protected area in winter and spring has become the main crop for aphids.

The control of aphids is generally based on chemical control. According to the characteristics of aphids gathered in the heart leaves and the wrinkles on the back of the leaf, the spray requires meticulous and thoughtful spraying, mainly on the back of the leaf. When using drugs, drugs with three effects: contact killing, internal absorption, and fumigation should be selected.

1) Smoke method: in the protected area in the evening after mixing sawdust with dichlorvos and then sprinkled on the red-hot iron plate or put a few red-hot coal blocks in the pot to ignite, so that the smoke fills the whole room, every 667 meters 2 greenhouse dosage needs about 80% dichlorvos kilograms, can also choose aphid smoke agent, 400 500 grams per 667 meters 2 times, scattered 4 5 piles, with a dark fire ignited and smoked after sealing for several hours.

2) Spray control: the use of 50% aphid fog wettable powder 2000 3000 times liquid to kill aphids has special effects; 20% quick-kill butamine (fenmethrin) emulsifiable concentrate 2000 times; 2000 times of 70% aphidpine wettable powder; Kill 5,000 times the liquid.

Regardless of the use of fumigation or spray to control aphids, after the application of pesticides must be checked to control the effect, if the desired effect is not achieved, first recall whether the spraying is subtle and thoughtful, if there is no problem in the spraying method, then it should be another choice of pesticides or appropriately increase the concentration.

Around 3 p.m. on a sunny day! There was no dew then! After an hour, the weather will be cool, and the aphids will be foraging! Look at the weather forecast when spraying! Just don't finish the rain.

After the aphid damage, the symptoms are the shrunken leaves of celery, poor growth, scorched heart leaves, and the excrement of the aphids also contaminates the stems and leaves. Prevention and control methods: First, yellow plate booby-trapping, 30 yellow plates coated with engine oil are placed per mu.

The second is the silver ash film to repel aphids, and the silver ash film is laid in the vegetable field before sowing or planting. The third is chemical control, with 3000 times of Emele, that is, 15 kg of water per gram of Emele, if the aphid resistance is large, you can add 5 ml of water to spray with high efficiency. It can also be sprayed with 5% cypermethrin 2000 times.

My celery has greasy insects, which is a little bit of my own garden, I don't know how to get better? Ask an expert to help you answer, the easiest way, how to get it.

Growing vegetables really hates this kind of insect, after all, it will affect the growth and appearance of vegetables

Of course, you can also use some yellow boards to trap, which is also a particularly common method. Although pesticide spraying has a quick effect and can solve a large number of problems immediately, many growers will choose to use yellow plates to trap after spraying with pesticides, because these insects are inexhaustible, and they may come again after a week, so it is very appropriate to use yellow plates.

Malathion, pine borer, aphicarb resistance, dimethoate, deltamethrin, methoate, imidacloprid, can also be used.

Answer 1: Agricultural prevention and control in summer and autumn combined pruning, pruning the damaged branches or branches with insects and eggs, and erasing the new shoots that are sporadically pumped during the growing season. 2. Biological control and protection of natural enemies, such as the scarcity of natural enemies in the garden, can also be collected from wheat fields, cotton fields or rape fields ladybugs, aphid flies and lacewings released into tomato fields, to control insects and insects, to achieve the purpose of prevention and control. 3. For pesticide-free control, 100 grams of edible soda ash + in 15 kg of water, shake well, let it fully dissolve, spray it on the leaf where the aphid is located, and try to spray all the leaves.

To prevent missed spraying, spray again the next day, up to three times, and the aphids will die quickly. 4. Pharmaceutical control begins to spray and control in the occurrence period of vegetable aphids, and the agent can be sprayed with 20% matrine wettable powder 2000 times, or 20% pymetrozine wettable powder 4000 times, or 10% enyldimidoxamin wettable powder 2500 times. When spraying, the nozzle should be upward, focusing on the back of the leaves, and spraying the liquid medicine on the melon aphid as much as possible.

The protected area can also be fumigated with 22% dichlorvos smoke, 400-500 grams per mu each time, scattered in 4-5 piles in the shed, ignited by dark fire, and sealed for about 3 hours, which can effectively kill aphids. There are many methods of vegetable aphid control, and aphids can be eliminated well with agricultural control, biological control, pesticide-free control, and pesticide control, and the use effect is relatively significant.

Anti-aphids can be used, this pesticide can effectively control aphids, and can ensure the yield of crops, is not harmful to the human body.

How to control aphids in vegetable seedlings

Rapeseed aphid is the main insect pest of rapeseed, which can occur throughout the growth period, with adult aphids and aphids dense on the back of rape leaves, stems and flowers, stinging and sucking sap, destroying mesophyll and chlorophyll to cause leaf curling and dead seedlings. At the same time, aphids are also important vectors for the transmission of rapeseed virus diseases. If the control is not effective, it will lead to a reduction in rapeseed production.

Control measures: select rapeseed varieties with strong stress resistance and good comprehensive traits, and mix 20 grams of 10% imidacloprid with 500 times of new high-fat film for every 1 kg of rapeseed before sowing to control aphids at the seedling stage.

Sow seeds at the right time. According to the climatic conditions, variety characteristics, and the occurrence of aphids, sow seeds in a timely manner, and spray a new high-fat film 800 times liquid to keep warm and moisture after sowing to prevent soil splintering and improve the seedling emergence rate.

Strengthen field management. In the rape seedling stage, weeds should be removed from the field and nearby, combined with seedlings or transplanting, and aphid plants should be removed. Apply an insecticide once before transplanting.

After transplanting, spray the new high-lipid film to improve plant immunity and shield the olfactory sensing ability of pests. Cultivate the soil in time and cultivate strong seedlings. Reasonable dense planting to improve ventilation and light transmittance.

Heavy application of basal fertilizer, phosphorus and potassium fertilizer can make rapeseed grow robust, the stalk is hard, and the ability of rapeseed to resist disease and stress is enhanced.

Summary. The answer to my dear is pesticides.

Different pesticides are required for different diseases of celery. For example, spot blight is a fungal disease, and mancozeb, chlorothalonil, difenoconazole and other fungal pesticides can be used to control fungal pesticides. Soft rot is a bacterial disease, and streptomycin sulfate, chunleimycin, and biomycin can be used to prevent and control bacteria.

What pesticides do celery use?

The answer is that the pesticide of flax is aimed at different diseases of celery, and the pesticides required are also different. For example, spot blight is a fungal disease, and fungal pesticides such as manganese-zinc, chlorothalonil, difenoconazole and other fungal pesticides can be used. Soft rot is a bacterial disease, and streptomycin sulfate, turbamycin, and biomycin can be used to prevent and control bacteria.

What pesticides are used to pull celery.

The answer is to use veratroline and matrine.

1. Pharmaceutical fumigation. When aphids are first found in the shed, 300 350 grams of 10% melon killing tobacco agent or 50 grams of 22% dichlorvos can be used per square meter for fumigation.

2. Spraying prevention and control. It can be sprayed with 2000-3000 times of 50% anti-aphid wettable powder, or 2000-3000 times of emulsifiable concentrate of chiflumus, and the effect is also very good.

Beauveria niger content of 500 million per gram can be cured.

Summary. Hello! Regarding the question of celery aphids, whether using vinegar spraying is effective, the answer is yes.

Vinegar has a strong sterilization and disinfection effect, which can effectively control the reproduction of aphids, and at the same time, it will not contaminate celery. The specific operation method is to mix vinegar and water in a ratio of 1:1, pour it into a spray bottle, and then spray it evenly on the foliage of celery plants.

It is important to note that you should not spray too much to avoid burning the foliage. In addition, it is advisable to repeat the spraying at regular intervals to ensure results. In addition to vinegar, there are other ways to control celery aphids, such as using natural plant insecticides and introducing natural predators.

However, it is necessary to choose the appropriate method on a case-by-case basis. Hope it helps!

Hello! Regarding the question of celery aphids, whether using vinegar spraying is effective, the answer is yes. Vinegar has a strong sterilization and disinfection effect, which can effectively control the reproduction of aphids, and at the same time, it will not contaminate celery.

The specific operation method is to mix vinegar and water in a ratio of 1:1, pour it into a spray bottle, and then spray it evenly on the foliage of celery plants. It is important to be careful not to spray too much to avoid burning the foliage.

In addition, it is recommended to repeat the spraying at regular intervals to ensure effectiveness. In addition to vinegar, there are other ways to control celery aphids, such as using natural plant insecticides and introducing natural predators. However, it is necessary to choose the appropriate method on a case-by-case basis.

Hope it helps!

Can vinegar also be sprayed to kill aphids on beans?

Hello, you can also use vinegar to spray aphids on beans. Aphids are one of the main pests of carob, they parasitize the leaves and shoots of carob and suck the sap of the plant, causing the growth of the bean to be restricted. Whereas, vinegar has an insecticidal effect and can effectively control the number of aphids.

How to use: Mix white vinegar and water in a 1:1 ratio, pour into a spray bottle, and spray evenly on the leaves and shoots of the beans.

It is recommended to use it in the morning or evening to avoid damage to the plants in the high temperatures. It should be noted that the concentration of vinegar is too high and can cause damage to the plant, so the concentration should be controlled when spraying. In addition, there are other ways to control aphids on beans, such as spraying with soapy water and using natural predators.

It is necessary to choose the appropriate Fangmin method for prevention and control according to the actual situation. I hope mine can be helpful to you.

Common diseases of celery include soft rot, soft rot, virus disease, early blight, sclerotinia and so on. Try to choose varieties with strong disease resistance when planting in the early stage; Soak the seeds in warm water at 48 degrees for half an hour before sowing; In the later stage, the diseased body is found to be removed in time, and attention is paid to the circulation of air; Prophylaxis can be used with drug sprays and **. Common insect pests mainly include aphids, spotted submarine flies, vegetable moths, jumping beetles, etc., which can be killed with drug sprays such as imidacloprid, aphid mite, and spotted latent net.

Disease control. Common diseases: soft rot, soft rot, virus disease, early blight of Yanmin pants, sclerotinia disease.

Soft rot: This disease usually occurs during the transplantation of celery in its infancy, or during the growth period after transplantation. When the disease is severe, it causes celery to rot and emit a pungent foul smell.

Heart rot: This disease can overwinter in the soil, and will spread with the soil to the plants the next time it is planted. It is easy to cause this disease when the temperature reaches more than 36 degrees Celsius and below 12 degrees Celsius.

The best temperature for celery is between 27 degrees and 30 degrees. At the same time, germs can also be transmitted through watering, insects, etc.

Viral disease: This disease mainly erodes the leaves of celery. Originally it also occurred first by the leaves of celery. This disease is mainly caused by too high and too low temperatures. Between 20 and 25 degrees, combined with the rain and humidity of the air, it is easy to trigger the disease.

Early blight: It is the same disease as spotted disease. It can occur both at the seedling stage and after adulthood. The main cause of this disease is also due to excessive temperature and humidity.

Sclerotinia sclerotinia disease: Celery can get sick throughout the growing season, and the main cause of this disease is also caused by excessive temperature and humidity.

Prevention and control methods: 1Try to choose varieties with strong disease resistance before planting.

2.Before sowing, soak the seeds in warm water at 48 degrees for about half an hour, which can effectively prevent and control the diseases brought by the seeds before sowing.

3. Reasonable fertilization, and timely removal of diseased bodies to prevent spread. Pay attention to the circulation of air and avoid moisture.

4 Can be prevented with drug sprays and**.

Pest control. Common insect pests: aphids, spotted divers, vegetable moths, jumping beetles, etc.

Control measures: imidacloprid, aphid mite, spotted latent and other drug sprays can be used to kill.

<> rape aphids can be controlled with 40% dimethoate emulsifiable concentrate or 20% oxymethoate emulsifiable concentrate 1000-2000 times, 70% aphid pine 1000-1400 times. In the flowering period 10% of the stems and branches of orange or inflorescence have aphids, each branch has 3-5 celery aphids began to spray, generally sprayed 2 4 times, in the serious disease area, should be before and after the emergence of seedlings, before the winged aphid migrates, focus on the general control of aphids on the cruciferous vegetables.