Dosage: Azoxystrobin98% TC; 20%, 25%, Azoxystrobin50% WDG, 60%, 80% WDG, 25%, 30%, 35%, Azoxystrobin250 g/L SC.
CAS NO.: 131860-33-8
Molecular formula: C22H17N3O5
Molecular weight: 403.388
Melting point: 118-119℃
Features
Azoxystrobin is a methoxyacrylate systemic broad-spectrum low-toxic fungicide with protective, therapeutic, eradication, penetration, systemic and slow upward movement activities. It is a mitochondrial respiration inhibitor. Its bactericidal mechanism is to inhibit the electron transfer between cytochrome bc1 and cytochrome c, thereby inhibiting mitochondrial respiration, destroying the energy formation of bacteria, and ultimately leading to the death of the bacteria. It plays a disease-preventive role by inhibiting spore germination, mycelium growth and spore production. Effective against strains resistant to 14-demethylase inhibitors, benzamides, dicarboxamides and benzimidazoles. In addition, the drug can also induce potential resistance in host plants to a certain extent and prevent bacterial infection. The agent is slightly irritating to rabbit skin and eyes, has low toxicity to birds and is safe to bees.
Azoxystrobin can be mixed with fungicide ingredients such as propiconazole, epoconazole, difenoconazole, chlorothalonil, dimethomorph, propamocarb hydrochloride, metalaxyl, cymoxanil, cyanazole, prochloraz, procymidazole, tebuconazole, hexaconazole, phenylconazole, Zinc thiazole, thiadiazole, zinc propenazine, carbendazim, pyrimethol, ningnanmycin, tetrafluoroethazole, fluamide, pyraclostrobin, thifuramide, aminooligosaccharide, and fludioxonil to produce compound fungicides.
Applicable to fruit trees and prevention and control objects
Azoxystrobin is suitable for a variety of fruit trees and has good control effects on many fungal diseases. At present, in fruit tree production, it is mainly used to prevent and control banana leaf spot and scab. Lychee downy blight. Anthracnose and powdery mildew of mango. Scab, anthracnose, yellow spot of citrus. Downy mildew, black pox, white rot, anthracnose and powdery mildew of grapes. Anthracnose, rings, and rust of jujube trees. Pear bagging, black spot disease, etc.
Use technology
Azoxystrobin is mainly used for spraying. Only when the drug is started before the disease occurs or in the early stages of the disease can it fully exert its efficacy and ensure the prevention and control effect. Spraying should be timely, even and thoughtful.
(1) Banana leaf spot and scab
Start spraying immediately when the disease occurs or when the lesions first appear, once every 15 to 20 days, and spray 3 to 4 times in a row. Generally use 20% WDG 800~1000 times solution, or 25% SC or 250 g/ L SC or 25% WDG 1000~1200 times solution, or 30% SC 1200~1500 times solution, or 35% SC1400~1700 times solution, or 50% WDG2000~2500 times solution, or 60% WDG2500~3000 times solution, or 80% WDG 3500~4000 times solution and spray evenly.
(2) Lychee downy blight
Spray once each during the flower bud stage, young fruit stage, fruit color change stage, and maturity stage. Generally use 20% WDG 1000~1200 times solution, or 25% SC or 250 g/L SC or 25% WDG 1200~1500 times solution, or 30% SC1500~1800 times solution, or 35% SC1800~2200 times solution, or 50% WDG2500~3000 times solution, or 60% WDG3000~4000 times solution, or 80% WDG 4000~5000 times solution and spray evenly.
(3) Mango anthracnose and powdery mildew
First, spray once each during the flower bud stage, after flower fall, and about half a month after flower fall, and then spray twice more at intervals of 10 to 15 days within one month before maturity. Generally use 20% WDG 1000~1200 times solution, or 25% SC or 250 g/L SC or 25% WDG 1200~1500 times solution, or 30% SC1500~1800 times solution, or 35% SC1800~2200 times solution, or 50% WDG2500~3000 times solution, or 60% WDG3000~4000 times solution, or 80% WDG 4000~5000 times solution and spray evenly.
(4) Citrus scab, anthracnose, and yellow spot
Spray 1 to 2 times each during the spring shoot growth period, young fruit stage, summer shoot growth period, autumn shoot growth period, and color change period. Generally use 20% WDG 600~800 times solution, or 25% SC or 250 g /L SC or 25% WDG 800~1200 times solution, or 30% SC1000~1400 times solution, or 35% SC1200~1500 times solution, or 50% WDG1600~2400 times solution, or 60% WDG2000~2500 times solution, or 80% WDG 2500~3500 times solution and spray evenly.
(5) Grape downy mildew, black pox, white rot, anthracnose, and powdery mildew
Mainly to control downy mildew, but also to prevent other diseases. Spray once before the grapes bloom, after the flowers fall, and 10 to 15 days after the flowers fall, to effectively prevent and control black pox and downy mildew from damaging the young ears . Then start spraying when downy mildew lesions first appear, once every 10 days or so, alternate with different types of pesticides, and spray continuously until the later stages of growth. Generally use 20% WDG 600~800 times solution, or 25% SC or 250 g/L SC or 25% WDG 800~1200 times solution, or 30% SC1000~1400 times solution, or 35% SC1200~1500 times solution, or 50% WDG1600~2400 times solution, or 60% WDG2000~2500 times solution, or 80% WDG 2500~3500 times solution and spray evenly.
(6) Jujube anthracnose, ring spot, and rust
Start spraying about half a month after the flowers fall or when rust first appears, once every 15 days, and spray 5 to 7 times in a row. Pay attention to using different types of pesticides alternately. Generally use 20% WDG1200~2000 times liquid , or 25% SC or 250 g/L SC or 25% WDG1500~2500 times liquid, or 30% SC1800~3000 times solution, or 35% SC2500~3500 times solution, or 50% WDG3000~5000 times solution, or 60% WDG4000~6000 times solution, or 80% WDG5000~8000 times liquid and spray evenly.
(7) Pear bagging fruit black spot disease
Just spray once before bagging the fruit, but it must be sprayed alone and cannot be mixed with other chemicals. Generally, use 20% WDG 1500~2000 times solution, or 25% SC or 250 g/L SC or 25% WDG 2000~ 2500 times solution, or 30% SC 2500~3000 times solution, or 35% SC 3000~3500 times solution, or 50% WDG 4000~5000 times solution, or 60% WDG 5000~6000 times solution, or 80% WDG 7000~ 8000 times solution to spray evenly.
Precautions
Azoxystrobin cannot be mixed with alkaline agents or fertilizers. When spraying continuously, pay attention to using different types of fungicides alternately to avoid the development of drug resistance in bacteria. It is prohibited to use it on apple trees to avoid phytotoxicity. Pay attention to safety protection when taking medicine, avoid the liquid contacting the skin and eyes, and avoid inhaling droplets; if swallowed by mistake, do not cause vomiting, and should be sent to the hospital for symptomatic treatment immediately. Use medical activated carbon for gastric lavage, etc., and pay attention to prevent gastric contents from entering the respiratory tract. . This agent is toxic to fish. It is strictly prohibited to pollute ponds, ditches, rivers, lakes and other waters with remaining liquid liquid and waste liquid from washing medical equipment.
