Urgently: How to cure aphids on leaves? 10

Actually, no, just get a few lacewings or ladybugs, they will eat aphids, so environmentally friendly!

1. Spraying pesticides: you can choose dimethal, dimethoate, dichlorvos, pyrethrin, aphid lice, etc., dilute the concentration according to the instructions, and spray evenly.

2. Home remedies: mash with 500 grams of garlic and soak in water for 24 hours, then filter and spray.

It can also be sprayed with ginger water and cigarette butt water.

3. If the density of the insect population is not large, it can also be placed outdoors or in the bathroom to be washed with water, and then a small number of aphids can be manually eliminated.

Soak the water in an ashtray and pour it on top. (There should be ash in the ashtray).

Watering flowers with tobacco butts soaked in tobacco leaves can be a good way to control aphids.

If the soaked tobacco leaves can be filtered out, it will be better to spray the foliage at the same time as watering the flowers.

This method is non-toxic and harmless, has no adverse effect on flowers, and is also suitable for aphid control of other flowers and plants.

1. Yellow board booby trap method Choose a piece of cardboard or wood with a length of 20 cm and a width of 15 cm, paste yellow paper on it, and then apply a layer of butter on the yellow paper to make a booby trap board, insert the booby trap board between the flower pots, and use the aphid's tropism to the yellow to stick the aphids on the booby trap board to achieve the purpose of eliminating aphids.

Second, spraying liquor method to choose more than 45 degrees of liquor, do not need to water, directly use a small sprayer to spray liquor on the flowers with aphids, spray once a day in the morning and evening, spray for three days, can basically eliminate aphids.

3. Urine lotion method Take an appropriate amount of water, add a little washing powder and urea, prepare a urine lotion mixture, spray it on the flowers with a small sprayer, spray it after 5 o'clock in the afternoon every day, spray it for 2-3 days, and effectively control aphids.

Fourth, the insect control method can be caught from the farmland part of the ladybugs, put on the flowers with aphids, and use the ladybugs to eat the aphids, so as to achieve the purpose of controlling aphids.

5. Grass ash filtrate method Take 1 kg of plant ash and add 5 kg of water, soak for 24 hours, take the filtrate and spray, which can effectively prevent and control aphids.

6. Leek insect control method Add a small amount of water to 1 kg of fresh leeks, squeeze the leek juice after mashing, and add 6 kg of water per kilogram of original juice for spraying. At the same time, it can also treat powdery mildew in flowers.

7. Tobacco insect control method Add 1 kg of dried tobacco leaves and 20 kg of water, soak for 24 hours, filter and spray. You can also chop the cigarette stick, add water, soak it for 48 hours, filter and spray. It has a good killing effect on flower aphids.

The best way to kill aphids is to teach you a trick to solve easily, effective and pollution-free.

3. You can also pour soapy water into the watering can, and then spray it on the leaves with aphids, so that you can get rid of aphids by spraying two or three times.

4. If the aphids on the leaves are more serious, you can use pesticides to remove aphids for spraying, which can also remove aphids well.

In daily life, aphids are more common, spring is also the season when aphids are most likely to break out, aphids have a very strong reproductive ability, it is easy to flood, we must deal with it as soon as possible, if there are more aphids, it may cause some harm to plants. In the process of using pesticides, it is necessary to pay attention to the appropriate amount of spraying, so as not to cause harm to plants and pollution to the environment.

There are aphids on plants, and the leaves and branches need to be cut off in time and burned in a concentrated manner to cut off the source of infection. If there are a small number of aphids on the branches and leaves of the plant, you can spray the plant with soapy water or pepper water to remove insects. If there are a large number of aphids on the branches and leaves of the plant, the plant can be sprayed with chemical agents such as grassworm forest, anti-aphid or acetamiprid to remove insects.

** method of aphids on plants.

Aphids generally occur in spring or summer, and if the growth of plants is too poor and the growth environment is not suitable, they will be attacked by aphids. There are aphids on the stems or leaves of plants, and the leaves and branches need to be cut off, and they are burned intensively after cutting. If there are fewer aphids on the branches and leaves of the plant, you can spray the plant with soapy water, pepper water or pepper water.

If there are a large number of aphids on the branches and leaves of the plant, after cutting off the branches and leaves, you can spray the plant with chemicals to remove the insects. To get rid of aphids, you can use chemicals such as insect forests, anti-aphids or acetamiprid. A variety of pesticides are used alternately, and the effect of insect control is better, but it is necessary to pay attention to the concentration of the pesticides should not be too high.

Dilute the agent with water according to the instructions, and after dilution, you can spray the branches, leaves, stems, soil and pots of the plant, and spray carefully. During the spraying period, it is necessary to pay attention to the fact that the agent should not be stopped halfway, otherwise the efficacy of the drug will be affected. After spraying the plant, do not put it in a sunny location, the light will also affect the efficacy of the drug, which is not conducive to the recovery of the plant.

After diluting the agent with water, the plant can be sprayed once between 7 and 10 days, and after spraying 3 or 4 times in a row, the pest can be removed. After the plant recovers in the later stage, it is necessary to give the plant sufficient light, water and fertilizer, which can improve the disease resistance of the plant. During the maintenance period, the plant should be sprayed regularly, and it can be sprayed once between 20 and 30 days to prevent pests and diseases.

There are the following ways to clear it

1. Drug prevention and treatment.

When a large number of aphids are found, spray pesticides in time. 1000 times of 50% marathon emulsion, or 1000 times of 50% pine borer emulsion, with 1:6—1:

8 ratios to prepare chili water (boil for about half an hour), spray the plants 2 3 times continuously; 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 prevention and control.

In autumn and winter, whitewash the base of the trunk to prevent aphids from laying eggs; Combined with pruning, cut off the damaged branches and residual flowers, and burn them intensively to reduce the overwintering insect population; In winter, scrape or brush off the densely overwintering egg masses on the bark, clean up the residual branches and leaves in time, and reduce the eggs of overwintering insects; When a small number of aphids are found on flowers in spring, they can be brushed with a brush dipped in water.

3. Chili water.

Take 50 grams of dried red pepper, add about 1 kg of water and boil for 10-20 minutes, filter and spray the clear liquid, which can control aphids, red spiders, whiteflies, etc.

4. Color prevention and control.

Silver-gray has a strong aphid-avoidance ability, and can be hung with silver-gray plastic strips or silver-gray mulch film in the garden to avoid aphids, which has a good effect on aphid migratory infection virus.

Aphid range:

1. Wheat aphids are widely distributed, almost all over the world's wheat-producing countries, there are many kinds of aphids that harm wheat in China, usually more common and important are: wheat long tube aphid, wheat bifurcated aphid, millet tube aphid, no net long tube aphid.

2. In China, except for the narrow distribution range of Aphid without net, the rest are common in all wheat areas, but often the number of Aphid long-piped and Aphid is the most serious.

Aphids are pure pests, it mainly harms crops and some vegetables, and it must be eliminated with the conventional pesticide imidacloprid and then mixed with a small amount of pesticide 1605 mixed spraying, so as to eliminate the vast majority of aphids.

1. Physical removal.

This method is very simple and crude, that is, it is directly cleaned with water. For some robust plants, such as potted flowers raised on the balcony at home, once infected with aphids, they must be removed in time, and they can be washed away with some relatively strong water, and they can be washed away by pinching the side of the water pipe with a water pipe, which can wash away the aphids. But be careful not to damage the plants.

For some branches and leaves that are infected with particularly many pests, they should be cut off and burned directly, or thrown into the trash. For the parts of the branches and leaves that are less aphid, you can rinse them with water.

2. Garlic solution.

Using our usual garlic, it is best to chop them and crush them into garlic paste, and then soak them in warm water for about a day or so, you can filter out the residue, properly mix them with water and then spray them to the place where they are infected with insect pests, and spray them evenly, so that you can effectively remove the pests.

In order to enhance the insecticidal effect, you can add two spoonfuls of alcohol to the solution, let them mix well, add a few drops of soapy water, and then spray the mist water to the infected area.

3. Yellow plate to trap aphids.

Winged adult aphids have a strong tropism to yellow and orange-yellow, and can make 15 cm and 20 cm yellow cardboard in size, and apply a layer of No. 10 engine oil or commonly used pesticides to control aphids on the cardboard, and insert or hang the yellow cardboard between the rows of vegetables and the top of the vegetables. The yellow plate of engine oil should be replaced in time after being full of aphids, and the yellow plate of the drug can make the aphids die when they touch the drug.

4. Silver ash film to avoid aphids.

Aphids have a strong avoidance of silver-gray color, and can hang some silver-gray plastic strips in the field or cover vegetables with silver-gray mulch.

5. Lime powder to kill aphids.

Sprinkle lime powder on the leaves with aphids, which will be killed quickly.

Spraying prevention and control is the most commonly used prevention and control method at present, with fast effect and high efficiency.

However, the duration of the general agent is only 7 15 days, after the effective period, the adults who migrate from elsewhere quickly carry out parthenogenetic reproduction under suitable environmental conditions, and the number of aphids increases geometrically, so in order to control its harm, it has to be sprayed again, generally every 7 days to spray once, I don't know how many times I need to spray in a season, which is why it is difficult for aphids to completely **.

You can also use willow branches to trap aphids. Aphids have a strong tropism to the smell emitted by willow, and a certain amount of willow branches can be tied into a handful and placed in the plant place where aphids occur in large quantities, so that a large number of aphids can be lured together to facilitate centralized killing.

Use plant ash liquid to avoid aphids, use 10 kg of plant ash, soak in 50 kg of water for 24 hours and then filter out, add 25 grams of 80% crystal trichlorfon in the filtrate (can also not be added), mix and spray, can control aphids, cabbage insects and other pests. Spray 1 time every 7 8 days, 3 times in a row, the effect is good.