Chemical formula :C12H13N3
Appearance:White crystal powder
CAS logon number :53112-28-0
Pyrimethanil TC 98%
Packing:25kg kraft bag/ woven bag/ fiber drum
Pyrimide, also known as methylpyrimidine and dimethyrimidine, is a fungicide of phenylamine and has special effects on grey mould.
The primary drug is colorless or white or white with yellowish crystals.
Soluble in organic solvent, slightly soluble in water, room temperature (25 ℃) in the water solubility of 0.121 g/L, melting temperature of 96.3 ℃ (refinement), vapour pressure 2.2 x 10-3 pa (25 ℃), stable under the condition of weak acid, weak alkali.
1, Amine has protective and therapeutic effects. It is a highly effective and low-toxic fungicide for control of gray mold and blight. It has internal absorption and fumigation. It can quickly spread to various parts of the plant after application and effectively inhibit pathogens. The production of invading enzymes prevents bacteria from infecting and completely kills the bacteria. It has no cross-resistance with other bactericides, and it is still very good protection and therapeutic effects when used at low temperatures. It is used to control cucumber, tomato, grape, strawberry, pea, leeks, and other crops such as gray mold, wilt disease, fruit tree scab, and spotted deciduous disease.
2, fruit tree scab, spotted leaf disease, etc.
As a traditional medicine fungicide, belongs to aniline - based pyrimidine class. It is a kind of fungicide with high activity of cucumber grey mould, tomato grey mould and blight.
The mechanism of action is unique, by inhibiting the production of bacteria infiltrating enzyme to prevent the infection and kill the bacteria.
Commonly used non-anilinyl pyrimidines (benzimidazoles and urethanes) fungicides have a potent effect against Botrytis cinerea, which mainly inhibit the elongation of buds and mycelial growth of Botrytis cinerea. Within a certain period of time, the spore germination of Botrytis cinerea was also inhibited.
At the same time, it has a function of internal absorption and fumigation. After spraying, it can quickly reach the parts of plants that cannot be reached by spraying such as flowers and young fruits. In particular, adding halo special effect penetrant can increase the adhesion time and penetration of leaves and fruits. The speed is conducive to absorption, so that the drug efficacy is faster and more stable. At present, 41% poly(pyrimidine)amine has been successfully synthesized in China. In addition, pyrimethanil is not sensitive to temperature, and administration at relatively low temperatures does not affect the efficacy.
Do not mix with food, seeds, and drinks when storing.
Use from 8 am to 5 pm on sunny days, when the relative humidity is lower than 65%, and stop spraying when the temperature is above 28 degrees.
1, control cucumber tomato and other gray mold, in the pre-mortem or early stage, per acre with 40% pyrimethanil 25-95g, watered 800-1200 times, mu water consumption 30-75kg, large plant, high dose high water Plants are small, low-dose and low-water, used once every 7-10 days, shared 2-3 times. A growth season requires more than 4 treatments and should be used interchangeably with other fungicides to avoid resistance. Exposure to vegetable drugs should be selected early and late, the wind is small, low temperature.
2, control grape gray mold, spray 40% suspension or wettable powder 1 000-1500 times liquid, when the cloth growing season requires more than 4 times, should be used with other fungicides to use, to avoid drug resistance .
Dangerous goods mark: N
Hazard type code : 51/53
Dangerous goods transport number.: UN 3077