The peach tree has recruited aphids, the leaves have curled, and there is any medicine that can solv

The following eight methods can be used for pollution-free control of aphids:

Repost) First, use sweet and sour liquid to trap and kill aphids. The sweet and sour liquid recipe is: wine:

Water:Sugar:Vinegar = 1:

The prepared sweet and sour liquid is placed in a vessel with an open top, and is generally placed in the evening at the plant site where aphids occur in large numbers, and the trapping effect is very significant.

2. Use yellow plates to trap aphids. Taking advantage of the chemotaxis of aphids, butter is applied to the yellow plate, and when the aphids find the yellow color, they will pounce on the yellow plate, so that the aphids will stick to the yellow plate. When a certain number is reached, the aphids that stick to the yellow plate can be treated.

3. Use willow branches to trap aphids. Aphids have a strong tendency to the smell emitted by willow. For this reason, a certain amount of willow branches can be taken and 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.

Fourth, use black light to trap aphids. Aphids have strong phototaxis, so the trapping effect is extremely significant by placing black lights in advance at plant sites where aphids occur in large numbers.

Fifth, the use of natural enemies to control aphids. The use of natural enemies to control aphids is currently the most economical and effective method. The seven-star ladybug is the natural enemy of aphids. For this purpose, a certain amount of seven-star ladybugs can be collected and placed on the plants harmed by aphids, and the effect is very good.

6. Use grass and wood gray water to control aphids. The method is to take 10-15 kg of plant ash, add 50 kg of water, and soak it for 1 day and night. The next day, take its supernatant and spray it on the plants where aphids occur, which can kill two birds with one stone; It can not only effectively control aphids, but also provide plant nutrition.

7. Use chili water to control aphids. The method is to take a certain amount of chili pepper (cooked and dried), put it in boiling water and boil it for 10-15 minutes, after the water cools, filter out the chili pepper, and then spray the chili water on the plants harmed by aphids, which can receive immediate results.

8. Use foliar fertilizer spray to control aphids. The use of 10% ammonium carbonate solution, ammonia solution, 2% urea solution for root spraying, every 7 days or so 1 spray, spray 2-3 times, for the control of aphids on the plant effect is very good.

How to control aphids in peach trees Effective methods of aphids.

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Acetamacis or imidacloprid can be used.

In the dormant season, spray Bamei 3-5 degrees of stone sulfur mixture to eradicate overwintering pathogenic bacteria; When the peach buds begin to swell in spring, it is a critical period for the prevention and control of peach leaf shrinkage disease, and the fungicidal pesticides sprayed include Baume 0 3-0 5 degrees of stone sulfur mixture, 70 methyl tobuzine wettable powder 1000 times, 2 amino-oligosaccharides 600 times, 32 nucleoside bromomorpholine guanidine (high-tech agent) 800 1000 times liquid, 50 carbendazim gel suspension 1000 times liquid;

In March and June of the peach tree growing season, that is, after leaf development and before the arrival of high temperature and dry weather, methyl tobuzin or carbendazim can be used, or it can be used alternately with 70 mancozeb wettable powder 500 times and Jinggangmycin water 500 times; The diameter of the lesions of early leaf shrinkage disease was about 0 2 cm, and the lesions were significantly inhibited by spraying fungicides.

When the petals are red (not), spray a 2 3 Baumé stone sulfur mixture or 1:1:100 Bordeaux liquid plus zinc and selenium to eliminate overwintering bacteria on the tree is very effective.

What pesticides do peach trees need to be sprayed when they roll their leaves?

What medicine is used for peach tree leaf curl (1) Choose disease-resistant varieties. (2) Spray Baume 3-5 degrees stone sulfur mixture in the dormant season to eradicate overwintering pathogens. (3) When the peach buds begin to swell in spring, spray 70% methyl tobuzin wettable powder or carbendazim suspension.

4) From March to June, after leaf development to before the arrival of high temperature and dry weather, methyl tobuzin or carbendazim can be used, or alternated with mancozeb wettable powder and Jinggangmycin aqueous agent. (5) The peach orchard with serious disease should be topdressed and irrigated in time to enhance the tree potential and improve disease resistance, and at the same time, the diseased leaves should be removed and brought out of the garden for burning, and the diseased leaves and good leaves that are not seriously shrunk should be sprayed to prevent their expansion. Foliar sprays of Falat potassium dihydrogen phosphate should be sprayed every 7-10 days, and 2-3 sprays can be controlled.

If the peach tree has the phenomenon of leaf rolling, it is necessary to judge whether there is a lack of water, and if there is a lack of water, it should be watered immediately. Then check the peach tree for bugs, and if there are bugs, you need to inject an insecticide.

1. The reason why the leaves of the peach tree are curled.

1) The temperature is low during the budding period of peach trees in spring. The temperature is low, and the growth of young peach leaves is slow, which is conducive to the invasion of pathogens. The high temperature and the faster growth of peach leaves reduce the chance of infection.

Peach trees are most susceptible to disease when the temperature is 10 16, and less common when the temperature is above 21.

2) Areas with high humidity are conducive to the occurrence of diseases, and in early spring (peach tree budding and leaf-developing period) in low temperature and rainy years or areas, peach leaf shrinkage disease occurs seriously; If the disease is warm and dry in early spring, the disease is mild.

3) From the perspective of variety, the disease of early-maturing peaches was more serious, and the incidence of late-maturing peaches was lighter.