Aphid spraying doesn t work? How can I keep you free of aphids for a season?

The triangular plum is about to bloom, budding insects, what method is used to eliminate it, if the medicine is sprayed, will it damage the potted plants? Today, let's analyze whether it is a flowering plant or a green leafy plant, during the growth period or the blooming period, I think it can be sprayed to remove insects, but not too much, spraying too much may hurt the flower buds. The amount of use must be small, and it needs to be sprayed in the case of natural ventilation, in general, acetamiprid can be used, add water 1:

1000 times the proportion to spray, spraying, in short, the surface needs to be sprayed, the breeding speed of the bud worm is particularly fast, if seven or eight days later, there are bud worms, must be sprayed again, to prevent it from being seen everywhere again. Aphid spraying doesn't work? Teach you 4 tricks, use one trick casually, and keep you free of aphids for a season!

In addition to spraying, other methods can be used to eliminate bud worms. Clause.

1. Soap powder. Styrofoam can be soaked in soap powder or soap bubbles, mixed with water, and the resulting water is used to spray the buds of the triangular plum. Aphid spraying doesn't work? Teach you 4 tricks, use one trick casually, and keep you free of aphids for a season! Clause.

2. Soak the tobacco in water. You can use cigarette butts or mosquito coils to soak in water to spray the buds of the triangular plum, which is a widely tried method, in addition to spraying, it can also irrigate the roots. It can get rid of small insects in bonsai soil.

Aphid spraying doesn't work? Teach you 4 tricks, use one trick casually, and keep you free of aphids for a season!

Clause. 3. Garlic water. You can mash the garlic, soak it in water, and spray small insects with the water obtained, and the garlic has a strong smell and can repel the bud worms. Clause.

Fourth, the gray water of plants and trees. You can use grass ash to make tea, after soaking for a day, remove the fermentation broth, to spray bud worms, there are some fine particles in the grass ash water, which can block the pores of the bud worms, the sprouts are self-priming insect pests, the effect of spraying grass ash is not bad, and the grass ash water is a good potassium fertilizer for watering flowers. Aphid spraying doesn't work?

Teach you 4 tricks, use one trick casually, and keep you free of aphids for a season!

1.Agricultural control. In the farming system, crop rotation should be practiced as much as possible and continuous cropping should be avoided.

After the harvest of the previous crop of vegetables, it is necessary to plow the ridges in time and remove debris in the field to reduce the source of aphids. Aphids like carbohydrates, in the process of vegetable cultivation, it is necessary to apply more well-rotted farm fertilizer, try to use less chemical fertilizer, especially not too much fertilizer at one time.

2.Natural enemies control aphids. There are many kinds of natural enemies of aphids, mainly seven-star ladybugs, heterochromatic ladybugs, grass clams, aphid-eating flies and aphid fungi, pay attention to the protection of these beneficial natural enemies and make use of them, you can eliminate a large number of aphids, and control the population of aphids within the number that is not enough to cause large-scale damage.

The dosage must be small, and to be sprayed in the case of ventilation, in general, you can use imidacloprid, with water 1:1000 times the ratio to spray, when spraying, the reverse side should be sprayed, the reproduction rate of aphids is particularly fast, if seven or eight days later, there are aphids, must be sprayed again, to avoid flooding again.

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.

Aphids, also known as greasy insects and honey worms, are a very common pest, which occurs on many crops and is widely distributed.

First of all, at present, on the market, the commonly used agents for the prevention and control of aphids are mainly the following: imidacloprid, acetamiprid, cyhalothrin, copper thiazide, dinotefurin, prometrozil, pymetrozine, anti-aphid, phoxanthion, malathion, chlorpyrifos, fenvalerate, etc. (in addition, there are others). Depending on the crop, the choice of insecticide will vary slightly.

However, some friends reacted, even if there are so many pesticides on it, why are aphids becoming more and more difficult to control in recent years? What is the reason for this? What to do? Below, the little helper will give you his views on some actual situations.

1. Replace the agent.

Aphid resistance enhancement, a large part of which is due to the use of a certain agent for many years, such as when the first year, the effect of imidacloprid is very good, the second year is also good, and in the next few years, I have been using imidacloprid to control aphids, you will find that the effect is getting worse and worse, this is the increase in the resistance of the aphids in the plot to imidacloprid, resulting in a bad effect, at this time, it is recommended to change the agent, do not use imidacloprid, those mentioned above can be replaced, can also be compounded.

2. Beat thoroughly and evenly.

Due to the small size, number of aphids, and fast reproduction, so when spraying, it must be beaten thoroughly and evenly, especially on the back of the leaves, but also to hit it, not only on it, but also recommended that under the premise of fixed dosage per unit area, more water will be used, and the effect will be improved.

3. Increase the dose.

This is no way, when the occurrence of aphids in some areas is serious, the harm is great, only by increasing the dose to it has an effect, then increase the dose, although it is not recommended to do this, but in the actual planting process, this practice is very common, such as a bottle of medicine that played 2 acres of land in the past, now it can only hit an acre, the dose is doubled, in fact, farmers do not want to do this, not to mention the increase in cost, the future prevention and control will be more and more difficult.

In addition to the above chemical control, it is recommended that we can also use natural enemies to prevent and control, to avoid pesticides to bring bad results, common aphid natural enemies are ladybugs, aphid flies and parasitic wasps, etc., conditional friends can buy or artificial breeding to implement, if you are afraid that the prevention and control of natural enemies is not thorough, you can combine with pesticides, in this way, the use of chemical agents will be reduced, and the effect has increased.

For vegetable aphids: 1. Imidacloprid or thiamethoxam or acetamacimid + avermectin + organic silicon + micro fertilizer; 2. When aphids are severe: halodioxapyr or ethyl spinomycin (supplemented by insecticide, mainly thrips, the cost is better, and it is easy to use in vegetables).

For fruit tree aphids: 1. Abamectin or chlorpyrifos + thiamethoxam, this is used as an early prevention plan; 2. Acridaclopid or imidacloprid + cyhalothrin, as the best scheme, when the temperature rises, it is recommended to use acetamactophite, which is better than imidacloprid. Because peach trees are sensitive to some pesticides, peach tree aphids can use Avi compound spiromethane ethyl ester or thiamethoxam compound spirolean ethyl ester, these two programs will be more costly, but the effect is good and the safety is high.

With the rise of temperature, the control of many pests and diseases is becoming more and more difficult, the main reason is that the commonly used drugs for pests and diseases are not as good as before, especially thrips and aphids

For thrips and aphids, due to the fast reproduction rate, many fruit farmers and vegetable farmers in order to prevent and control, the dosage and number of pesticides are also more, so their resistance to pesticides is gradually improved, which also leads to our poor drug control effect, for this kind of thrips and aphids that are not well controlled due to resistance, we can use organic fluorine additives to solve their resistance, once their resistance is solved, the control will be relatively easy.

If you don't have a good way to control thrips and aphids, you can add organic fluorine anti-anti-additives when spraying pesticides.

Aphids are also one of the most destructive pests on the planet. What should I do when the outbreak period comes, take this medicine and get it at once!

Selection of aphid control agents.

Aphids belong to agricultural pests with a relatively high overlap of generations, and in the same period, including eggs, nymphs, adults, etc., will exist, so in the prevention and control, it is recommended to use some agents that have an effect on each insect state! It is especially recommended that farmers use some ovicides!

In addition, when using pesticides, it is necessary to dispense them according to the resistance of aphids. Like the green and black aphids in aphids, the resistance is relatively low, and farmers can choose low-cost agents when using drugs; If yellow aphids are targeted, it is recommended that farmers directly consider the use of special ingredients such as halopyraniliprole, because yellow aphids are the most difficult to control among aphids.

Low-resistant aphids (green, black aphids): It is recommended that farmers use imidacloprid, acetamiprid, thiamethoxam (neonicotinoid insecticide), enethoxam, etc., and in the prevention and control, it is recommended that farmers use pyrethroid such as cypermethrin, which can increase the fast-acting effect!

In such a situation, we have no choice but to increase the dosage to solve this problem.

The three most feared drugs for aphids are nicotinic aphid control agents, pyridinamide insecticides, and the latest anti-aphid agents.

1. Nicotinic aphid control agents.

Nicotinic insecticides are the most common insecticides for the control of aphids, and its typical generation Sakuramori has imidacloprid, acetamiprid, thiamethoxam, etc., this kind of insecticide ** is not high, has systemic and contact killing effects, because it is listed earlier, and the resistance is obvious. At present, it is mainly used to control general resistant aphids, and highly resistant aphids such as peach aphids, yellow aphids, etc., and the effect is not obvious.

2. Pyridinamide insecticides.

Pyridinamide insecticides are currently one of the special agents for resistant aphids, and the typical representative is flufenamide, which is definitely a good hand for the prevention and control of resistant aphids, and is currently the most used ingredient for resistant aphids, but the cost is high.

3. The latest anti-aphid agent.

The third type of aphid insecticide can be said to be the latest and hottest one on the market. Its chemical ingredient is called dipropionate, which is a new, non-resistant agent produced by BASF in Germany. The insecticidal mechanism of this insecticide mainly relies on interfering with the normal nerve transmission carried by the pest's spine, making its movement unbalanced, refusing to eat, and then causing the aphids to die.

Natural enemies of aphids

Aphid-eating flies: Aphid-eating flies are effective natural enemies of aphids, scale insects, whiteflies, leafhoppers, thrips, etc., and are known for their larvae preying on aphids.

Ladybug: Ladybug is the common name of the beetle with round protrusions in the family Coleoptera ladybugidae, often with red, black or yellow spots, and predatory ladybugs mostly feed on aphids. Many ladybugs live only in specific habitats, sometimes limited to a few plants in a particular habitat.

Parasitic wasps: parasitic bees refer to a variety of insects that live by parasitism, such as the family of golden bees, the family of agabees, and the family of small bees, of the order Hymenoptera, and there are many species, which are parasitic on the different developmental stages of the host, and the common ones are small wasps, bumble bees, cocoon bees, red-eyed bees, rodent wasps, etc.

1. When the aphids overwinter, the eggs are often on the peripheral branches, and when pruning, pay attention to cutting off the spring shoots, and take the removed branches out of the peach orchard to burn.

2. Hanging yellow plates, aphids are sensitive to yellow, and it is also a very good way to trap aphids by hanging yellow plates.

3. Laundry detergent can be applied to aphid control, laundry detergent and water are mixed evenly according to the weight of 1:450, sprayed to the leaves of fruit trees in Taoyuan, and can also play a role in eliminating aphids.

4. Aphids are avoidant to the smell of leeks, so they can be interplanted in the peach orchard, and the smell of leeks can be used to reduce the density of aphids and reduce the harm of aphids to the peach orchard.

Aphids can be removed with ladybugs, lacewings, aphid flies, and parasitic wasps.

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 chilli 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 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 covered 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, the base of the trunk of the covered section is whitened 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 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 the flowers in spring, you can use a brush dipped in water to brush them off, or place the potted flowers under tap water and rinse them in a swirling way.

3.Protect predators.

There are many natural enemies of aphids, such as 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.