How to control peanut aphids? How to control peanut aphids

Peanuts are grown in many parts of our country.

Every year in mid-May, peanut aphids become rampant, eating the sap of peanut heart buds and young leaves, and the peanut plant is damaged and does not grow upward.

Therefore, once it is found that peanuts have aphids, they must be controlled in a timely manner.

First of all, before sowing peanuts, 3% carbofuran is used to coat the seeds to prevent the pests from eating underground and prevent the budworms from burrowing into the seedlings that have just broken out.

You can also use physical prevention and control methods to cover with mulch, but I personally think that the effect is not too ideal, and it can only play a relieving role, not **.

If you want to be the best, you must use chemical agents to prevent metallurgy, for example, quick killing, enemy killing, enemy feeding, etc., you can also go to the pesticide store to buy, consult related drugs, preferably low toxicity and high efficiency, and then spray.

Spraying should be carried out when there is no dew on a sunny day, because the effect is not ideal on a rainy day, and the work is in vain.

If the buds cannot be controlled, it will cause a reduction in peanut yield and income, and in serious cases, it will cause a final harvest and bring economic losses to peanut farmers, so it is necessary to prevent it as soon as possible.

Peanut aphids must be sprayed, when spraying must be sprayed at noon, when spraying pesticides must be fried under the leaves of the proof, because at noon the day is hot, the aphids will be under the leaves, so that the effect is good.

If it's serious, it's better to go to the dentist, after all, the doctor knows more than me.

1. Agricultural prevention and control.

1) Planting plot selection. It is advisable to choose a planting place with sandy soil and good drainage and irrigation conditions.

2) Reasonable crop rotation. Avoid planting peanuts on the same plot for more than 2 years.

3) Mulching cultivation. The film-coated peanut has good water-retention, heat preservation and fertilizer retention properties, which can reduce the harm of pests and diseases, and can be harvested early. The cultivation of peanuts with film mulching has obvious reflective effect of repelling aphids at the seedling stage, especially the use of silver ash film covering, which can effectively reduce the occurrence and harm of aphids at the seedling stage of peanuts.

4) Strengthen fertilizer and water management. Peanuts are potassium-loving crops, so nitrogen, phosphorus and potassium compound fertilizers can be applied to the base fertilizer. Peanut fields are mostly sandy loam soil, with poor water retention performance, so they should be drained and irrigated in a timely manner.

2. Biological control.

There are many kinds of natural enemies of peanut aphids, and the control effect is relatively obvious, so the use of pesticides to control aphids should be avoided in the peak period of natural enemies, so as to use and protect the natural enemies of aphids. The main natural enemies of peanut aphids are lacewings, ladybugs, aphid-eating flies, etc.

For aphid damage, you can choose to spray 10,000 times of 50% sulfoxapyr water dispersant and 4,000 times of 75% spiroworm pymetrozine water dispersant.

<> spray the plants 1-2 times with 1000 times of 50% marathon emulsion and 1000 times of 50% pine borer emulsion.

Use 15 kilograms of trichlorfon powder, mix 15 kilograms of fine dry soil, and sprinkle it on the base of the peanut mound, and the effect of killing aphids is good.

Spray 2kg of dimethoate powder per mu, and choose to spray powder in the morning or evening when there is no wind.

Aphids have a positive habit of orange color, and can hang yellow boards in the field to trap peanut aphids.

1. Chemical control

1. Choose 1000 times of 50% marathon emulsion, 1000 times of 50% pine borer emulsion, 3000 times of 50% anti-aphid wettable powder, 3000 times of 5% deltamethrin emulsion, 3000 times of 5% exterminating emulsion, 1500-2000 times of 40% imidacloprid aqueous solvent, etc., and spray the plants 1-2 times, and the effect of peanut aphids is better.

2. Use 15 kilograms of dimethoate powder or trichlorfon powder with 15 kg of fine dry soil, and sprinkle it on the base of the peanut pier to make it contact with the insect body as much as possible when the peanut leaves are closed in the morning and evening, and the effect of aphid control is obvious.

3. Spray 2kg of dimethoate powder, trichlorfon powder or 2% pine borer powder per mu, and the effect should be selected in the morning or evening when spraying powder.

2. Physical prevention and control

1. Aphids have negative tropism to silver-gray, and can be covered with silver-gray film to repel aphids, and silver-gray film can be used to cover them before emergence after sowing, which has obvious reflective repelling effect and can effectively reduce the occurrence of aphids in peanut seedlings.

2. Aphids have a positive habit of orange color, and they can hang yellow plates in the field to trap peanut aphids, and the effect is more obvious.

3. Artificial prevention and control

Combined with pruning, cut off the damaged branches and residual flowers, and burn them intensively to reduce the overwintering insect population; When a small number of aphids are found on the flowers in spring, you can use a brush dipped in water to brush them off, or put the potted flowers under tap water to rotate and rinse; In winter, brush white at the base of the flower stem to prevent aphids from laying eggs, scrape or brush off the densely overwintering egg masses on the bark in winter, and clean up the residual branches and leaves in time to reduce the overwintering insect eggs.

4. Biological control

There are many kinds of natural enemies of peanut aphids, and the main natural enemies of peanut aphids are lacewings, ladybugs, aphid-eating flies, etc., which can be controlled by using aphid natural enemies, and the control effect is relatively obvious.

Question 1: What should I do with my peanut worms? Environmentally friendly ways to get rid of aphids are:

Spray cigarette butt infusion, chili infusion, ginger infusion, and laundry detergent dilution (the concentration is appropriate, rinse with water about 12 hours after spraying to prevent the leaves from breathing obstruction); But the most direct way is to use pesticides to eliminate aphids, you can go to the flower market to buy, generally according to the number of flowers in the family and choose the number of purchases. There are many agents to eliminate aphids, such as aphid lice net, aphid, kung fu, kill inulin, oxidized dimethoate (Yueji, rose, cherry blossom and other plants of the same family are prohibited).

It should also be noted that plants should be placed outdoors as much as possible when killing aphids, as well ventilated conditions are conducive to the flight of aphids and the disappearance of odors.

Question 2: What should I do if there are peanuts and aphids at home? Why do bugs occur? It must be that the stems and leaves of the flowers are juicy and high in sugar.

Physical control Hanging silver-grey plastic strips in the vents can ward off aphids and significantly reduce the amount of aphids. Set up 40 45 mesh silver-gray or white insect-proof nets on the doors and air vents to prevent aphids from entering the harm. Take advantage of the yellow tropism of winged aphids and trap them with yellow plates.

Chemical control Use 10 imidacloprid wettable powder 2000 times, or 0 deltamethrin emulsifiable concentrate 2000 times, or 50 aphid anti-aphid wettable powder 2500 times, or 10% nicotine emulsifiable concentrate 500 1000 times liquid spray control. Aphids have strong reproductive ability, occur in many generations, and are very prone to drug resistance, so pay attention to alternate drugs. Aphids generally gather on the tender heads, young leaves, young stems and back of the leaves, and pesticides should be applied to these parts.

Question 3: What to do with peanut aphids, peanut aphid control methods If you grow your own home, try physical control products, most of the general pesticides in pesticide stores are toxic.

Question 4: What to do with peanut aphids Throw it away.

Question 5: What should I do if I have peanuts and aphids? If there are few aphids, you can use a brush or rag directly, and repeat it several times in a few days at most;

If you have more, you can buy some pymetrozine and spray it, the effect is quite good.

Most of the active ingredients of mosquito repellent sprays are pyrethroid pesticides, and the effect of treating aphids is not very good.

Question 6: What to do with peanuts and insects The amount is small, and the insects can be killed by freezing and drying, and the large or serious amount can be fumigated with aluminum phosphide according to the instructions to kill insects, if you don't want to eat it directly, you can squeeze it for oil.

Question 7: What to do with the greasy insects of peanuts Buy insecticides, or put camphor, and you can also use an electric mosquito swatter

1. Apply mosquito coil ash to the surface of the potting soil to prevent the outside insects from laying eggs in the soil, and also kill the small insects in the soil.

2. Before planting flowers, turn the flower soil in the microwave oven for a period of time to effectively kill the eggs and insects in the soil.

3. Bury some insecticides such as carbofuran in the soil, the effect is very good, but it is toxic, be careful not to let yourself be poisonous.

Fourth, after the flowers and plants die, throw them away in time to prevent insects.

5. Spray insecticides.

Question 9: How to control aphids on peanut leaves Aphids on cucumber leaves can be sprayed and insecticidal according to the amount used or the amount taught by the boss.

Here's how to fix it:

1. Adopt artificial blindness control, brush off the aphids with a brush or brush, and bury the swept aphids in the potting soil;

2. Use the special smell of leeks to expel and control aphids, and plant leeks and diseased flowers together to play an effective role in prevention and control;

3. Add wind oil essence to 600 times of water and dilute it, pour it into the spray, and spray it on the pests to ensure that the liquid on the insect body can kill the aphids;

4. Mash a small amount of onion into a puree and add water, filter it after 24 hours, and spray it on the flowers, which can not only effectively control aphids, but also have an effect on red spiders.

Peanuts are born aphids during the flowering period, and it is best to treat them with natural enemies such as ladybugs and lacewings.

Aphid control methods:

1.Pharmacological prevention.

When a large number of aphids are found, spray pesticides in time. Spray plants 1 to 2 times with 50% marathon emulsion 1000 times, or 50% pyridoxine emulsion 1000 times, or 50% anti-aphid wettable powder 3000 times, or deltamethrin emulsion 3000 times, or 3000 times of dissol emulsion, or 1500 to 2000 times of 40% imidacloprid aqueous solvent; Use 1:6 to 1:

Prepare chili water in a ratio of 8 (boil for about half an hour), or spray with laundry detergent water in a ratio of 1:20 to 1:30, or use a yard to light 1:

20:400 ratio of laundry detergent, urea, water mixed solution spraying, continuous spraying of plants 2 to 3 times; For aphids such as peach powder aphid, which is coated with wax powder, 1% soapy water or washing powder should be added when applying any agent to increase adhesion and improve the control effect.

2.Artificial control.

In autumn and winter, whitewash the base of the trunk to prevent aphids from laying eggs; Combined with pruning, the damaged branches and residual flowers were cut off, and burned intensively to reduce the overwintering insect population; In winter, scrape or brush off the dense overwintering egg masses on the bark, clean up the residual branches and fallen leaves in time, and reduce the overwintering insect eggs; When a small number of aphids are found on the flowers in spring, you can use a brush dipped in water to brush them clean, or put the pot of late and wide flowers at an angle under running water to rotate and rinse.

3.Protect predators.

There are many natural enemies of aphids, including ladybugs, lacewings, aphid flies and parasitic wasps, etc., which have a strong inhibitory effect on aphids. Try to apply as little broad-spectrum pesticides as possible, avoid applying pesticides during the peak period of natural enemy activities, and artificially raise and release aphid natural enemies if conditions permit.