Grape is a fruit tree with more pests and diseases, especially with the arrival of summer, the temperature rises rapidly, the rain is sufficient, and a large number of pests and diseases are concentrated. At present, the northern openland grapes have ended the flowering period, and the three medicines after the flowering, the young fruit period and the bagging are very important, which is related to the quality and yield of the grapes. How to fight this specific medicine?

1, 20% difenoconazole water dispersible granules

20% difenoconazole is a highly effective systemic fungicide for triazoles. It has complete sterilization and excellent control effects on anthracnose, white rot, powdery mildew, black pox, black rot, etc. Blight. For grape safety, it will not inhibit growth. In the early comprehensive prevention and control, 3000-5000 times solution is applied with the protective agent; in the later stage, 1000-1500 times solution is applied to the treatment of anthracnose; it is best not to mix with copper preparation, such as To be mixed, increase the dosage by 10%. For the three grape varieties of Fujisaka, Xiahei, and Gaoqi, do not apply them on a cloudy day and have phytotoxicity.

2, 80% frosted urea cyanide water dispersion granules

The cymoxanil is a permeable, downy mildew therapeutic agent that can enter the interior of the grape plant where it is sprayed, sterilizing and inhibiting bacteria. At present, due to a large number of applications, drug resistance is relatively heavy. A common variety is a compound that is compounded with mancozeb by 72% or 36%. It is recommended to be applied according to a protective fungicide due to low cyanuric acid content. Applying cymoxanil in the vineyard, it is recommended to apply pure sulphonic acid cyanide preparation, such as 80% sulphuric acid cyanide water dispersible granules, apply 2000-3000 times liquid, or 3000-4000 times liquid and protective fungicide (such as spray Gram, spray, etc.) mixed application.

3, 25% Kairun (pyrazolone) emulsifiable concentrate or 60% Baitai (6% pyraclostrobin and 54% Daisenlian) water-dispersible granules

Pyraclostrobin is one of the latest methoxy acrylate fungicides. It is an improved mitochondrial respiratory inhibitor based on ether oxystrobin. It has a broad spectrum of bactericidal action against grape downy mildew, anthracnose and white powder. Diseases, etc. have better control effects. It has a long-lasting effect, good safety, and has a stimulating effect on crops. It can be used in grape growing seasons, 25% Kairun applies 2000-4000 times liquid, and 60% Baitai applies 800-1500 times liquid.

4, 80% tebuconazole water dispersion granules

Tebuconazole is a highly effective systemic fungicide with excellent control effects against white rot, powdery mildew, black pox, black rot, etc., and can treat both anthracnose and gray mold. Pre-exposure application of 8000 ~ 10000 times solution, 6000 times solution for treatment, 3000 times solution for the treatment of anthrax in the treatment of the ear. It has a slight inhibition of growth and is used with caution in small and young fruit.

5, 40% fluorosilazole (stable bacteria)

Fluorosilazole is a triazole systemic bactericide, which has excellent control effects against white rot, powdery mildew, black pox, and black rot, and can treat anthrax. Apply 8000 to 10000 times the solution. Note that the concentration conference has side effects, so it cannot be lower than 8000 times. It can also be used as a bactericide for the treatment and control of black pox after 2 to 3 leaf stage, before flowering and after flowering. Although flusilazole has high activity and good effect, it is mainly based on bacteriostasis. After the onset, it is best to alternate or rotate the medicinal agents. When handling the ears before bagging, it is best not to use this agent. It can be applied in combination with a protective bactericide such as a spray, a spray, and a copper preparation.

6, Fumei double, Fumei zinc, anthrax Fumei

It has a good protective effect on grape ears. Especially for white rot and anthracnose, it has certain effects on downy mildew. It is a good vineyard fungicide. However, it is desirable to pay attention to the pollution caused by such products, pay attention to the safety of food, and should be cautious or prohibited in the later stage. In the young fruit stage, the phytotoxicity of the sensitive varieties and the burning of the fruit surface are heavier. Once the fruit surface is damaged during the young fruit period, it is easy to cause the fruit cracking in the later stage.

7, 25% amishida suspension (also known as Anzhenda)

Amishida is one of the latest methoxy acrylate fungicides produced by Syngenta.

The active ingredient is azoxystrobin, which is derived from natural products and has a wide spectrum of sterilization. It is effective for almost all fungi, has a long-lasting effect and is safe. It can be used in various growth stages of grapes, generally 1000-2000 times solution.

8, easy to protect

Produced by DuPont, USA, 68.75% DuPont easy-to-water dispersible granules, which contain two different chemical mechanisms of action mechanism, belong to protective fungicides. DuPont Yibao has the advantages of many points of action and wide spectrum of sterilization, and is superior. Yes, it is resistant to rain washout. It can control various diseases such as downy mildew, blight, leaf spot, anthracnose and late blight, including various fungal diseases caused by the flagellum subgenus and the pathogen of the fungus. Because of its broad spectrum, it is not necessary to mix other protective fungicides. Use multiples of 1200-1500 times.

9, 50% Jinkeke high suspension rate wettable powder

Jinkeke is a systemic therapeutic agent for methic morpholine downy mildew and is one of the most excellent agents for downy mildew. It has good absorption and high activity, and it is applied with 4000~4500 times of liquid in combination with protective agent. The compounding property is good, and it can be mixed with spray, essential, carbendazim, thiophanate-methyl, flusilazole, etc., and the Bordeaux mixture can be mixed or applied successively. In the major occurrences of downy mildew, such as mid-June and early July in the rainy areas of the south, and mid-July in the northern part of the country, Jinkeke is mixed with protective fungicides; after the occurrence of downy mildew, Jinke Ke is one of the best fungicides for the treatment and control of downy mildew. Please refer to the content of the downy mildew part for specific application. Dimethomorph is good in systemic absorption, but it is very easy to produce resistance. It can not be applied more than 2 times in a continuous manner, and it is not effective when it encounters continuous cloudy days after administration. Jinkeke contains other high-efficiency therapeutic agents and high-efficiency auxiliaries, which overcome the odor of enoylmorpholine (unsatisfactory effect on continuous cloudy days after drug administration, continuous application is more resistant to resistance), and it is not easy to produce resistance. It is a control cream. One of the special effects of mildew, and cost-effective.

10, 78% Cobo WP

Cobo has excellent protection effect on the leaves, fruits and branches of grapes; it has a wide spectrum of sterilization and excellent drug effect, can prevent and cure various diseases at the same time; it does not produce resistance; it has a nutritional effect, can promote nutrient accumulation and improve disease resistance. It has the effect of promoting the aging of branches; good adhesion; good efficacy and long-lasting effect.

Inflorescence separation period, post-flowering and rainy season are the most important periods for the prevention and treatment of grape diseases. The rainy season is used once or twice. The application of Cobo can fully demonstrate the advantages of high efficiency, broad spectrum and nutrition. Can also be applied in other periods

11, 30% difenoconazole, propiconazole (Ai Miao) emulsifiable concentrate

This product is a triazole compound preparation, which has excellent control effect against white rot, powdery mildew, anthracnose and black pox, but has slight inhibition of growth. Before and after sealing, it can not be less than 3000 times liquid. It has certain damage to fruit powder and can be used in bagging grape bagging or wine varieties.

12, pyrimethanil

Characteristics: a new generation of fungicide with a new mechanism of action, the active ingredient is 40% pyrimethanil, with preventive protection, eradication treatment and fumigation, fast acting, can be quickly transmitted to plants, flowers, young fruits and other conventional agents can not be achieved The part is resistant to rain, low temperature, no effect, no resistance, and has special effects on gray mold which is resistant to conventional fungicides.

Dosage form: 40% wettable powder

Control object: gray mold

13, Fuqingqing, charcoal, DBDCB, bromocarbonitrile

It is a broad-spectrum, high-efficiency, low-toxic fungicide that can inhibit and eradicate the growth of fungi, bacteria and algae. It has a good control effect on crop diseases and has special effects on anthracnose. Widely used in fruit trees, grapes, vegetables, cotton, peanuts, watermelons, tobacco, tea trees, flowers and other crops, prevention and treatment of anthracnose, scab, scab, powdery mildew, rust, blight, stagnation, rhizomes A variety of fungal and bacterial diseases such as rot, canker, bacterial wilt, and keratosis.

14, 25% wear mold

Despite the systemic therapeutic fungicide, it is mainly transmitted upwards, absorbed by the roots, or absorbed by the leaves of the branches, and is transported upwards to the ears and new shoots. The roots can also reach the roots, but the amount is small. The special effects of powdery mildew on powdery mildew and anthracnose, the effects of decay on the fruits and cobs caused by Aspergillus, Penicillium and Fusarium; and excellent control effects on white rot, gray mold and cob brown blight. Use concentration: 150-250ppm (1000-1500 times). Usage: 1. Spray the ear or the ear of the fruit before bagging; 2. Spray the base of the ear and the ear of the fruit before picking up the bag; 3. Before harvesting the bag: before harvesting: the ear of the fruit, or the branch of the ear and the branch of the ear; 4 After the harvest: soak for 1500 times for about 30 seconds, remove it and dry it, then dry it and store it.

15, 50% double water dispersible granules

Baobu is a high-efficiency bactericide for methoxy acrylate, which acts by inhibiting the respiration of pathogens, especially for inhibiting the germination of spores. When spores germinate, they need to breathe to produce energy. Because the energy stored by the spore itself is very limited, so the pole The low concentration of Baobu can inhibit the germination of spores. All fungi rely on respiration to generate energy to complete life activities. Therefore, the bacteriostatic spectrum is extremely broad and is effective for almost all fungi. Because it is effective against spores at very low concentrations, it lasts for 20 to 30 days. Baobu is derived from natural products and can be applied continuously for 2 or more times, which can greatly improve the yield and quality of the grapes. The fruit tastes good, the color is early, the appearance is clean and beautiful, and the commodity is improved. For the grapes cultivated in open fields in areas with heavy rain, the growth of the secondary shoots in the rainy season is fast, and the downy mildew on the secondary shoots is a difficult problem. It can be applied 50% of the times before or after the control of the downy mildew in the rainy season. After a period of time, the secondary shoots or new shoots are used again. Only the newly grown parts are sprayed. The other parts can be used to control downy mildew according to the normal medication. It can also be combined with the therapeutic agent to control downy mildew after the onset of the disease. break out. Generally, 3000 to 4000 times of liquid is applied, and before the bag is bagged, 1000 times of liquid can also be applied when the ear is processed.

16, 25% propiconazole

It is a triazole-based systemic fungicide. It is used in the grapefruit fruit and in the expansion period. The amount is inhibited from growing (the size is different, or it is generally smaller than other useless fruits). This period is not recommended. It belongs to the same triazole. The safety of 20% difenoconazole is much better, and there is no inhibition of growth. Anthrax, white rot, black beans can prevent and treat.

17. Dimethomorph

It is a cinnamic acid derivative which is active against fungi of the genus Downy and Phytophthora. Mainly caused by the decomposition of the sporangia wall, so that the bacteria died. In addition to zoospores and spore migration, it has a role in all stages of the life cycle of oocysts, especially in the stage of sporangia and oosporid formation, at very low concentrations (

It has no phytotoxicity to plants, and it is often combined with a contact fungicide such as mancozeb.

Precautions:

Do not use more than 4 times during the season, pay attention to other fungicides with different mechanisms of action and their rotation applications.

18, Keding

Grape various disease preventive fungicides have good preventive and therapeutic effects on various diseases such as grape downy mildew, black bean disease and white rot. It is a very effective fungicide, but it is rarely available on the market and has been out of stock.

19. Kejia

The special agent for downy mildew is a cyano-methane fungicide with a long potency and obvious effect. After a specific spray, the downy mildew will not damage the leaves and have a strong leaf protection function. After two years of practice, it is a rare medicine that is an imported medicine of Japan's Ishihara.

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