It is a traditional bactericide and is an anilinopyrimidine. It is
a fungicide with high activity in controlling traditional Chinese
medicine for gray mold, tomato gray mold and blight.
The mechanism of action is unique, which prevents the infection of
the pathogen and kills the pathogen by inhibiting the production of
the enzyme-impregnated enzyme.
It is highly effective against the commonly used
non-anilinopyrimidines (benzimidazoles and carbamates) fungicides,
and mainly inhibits the growth of germ tubes and mycelial growth of
Botrytis cinerea. It also has a certain inhibitory effect on spore
germination of Botrytis cinerea within a certain period of time.
At the same time, it has the functions of internal absorption and
fumigation. After application, it can quickly reach the parts of
the plant where flowers and young fruits cannot reach the spray,
killing the bacteria.
It has the functions of protection and treatment. It is a
high-efficiency and low-toxic fungicide for controlling gray mold
and blight. It has systemic conduction and fumigation effects. It
can be quickly transferred to various parts of plants after
It effectively inhibits the production of pathogenic bacteria
infecting enzymes, thereby preventing the infection of the bacteria
and completely killing the bacteria. It has no cross-resistance
with other fungicides, and it has very good protection and
therapeutic effect when used at low temperatures. It is used to
control cucumber, tomato, grape, strawberry, pea, leeks, and other
crops such as gray mold, blight, fruit black star disease, and
spotted leaf disease.
Prevention and control of gray mold caused by cucumber tomato, etc.
Before or after the onset, use 40% of pyrimethanil 25-95g per acre,
800-1200 times of water, 30-75kg of water per mu, large plant, high
drug volume and high water content; Small, low dose and low water
volume, used once every 7-10 days, sharing 2-3 times. It takes more
than 4 times to control a growing season, and should be rotated
with other fungicides to avoid resistance. Open field medicine
should be selected in the morning and evening, the wind is small
and low temperature.
Control grape gray mold, spray 40% suspension or wettable powder 1
000-1500 times liquid, when the cloth needs to be applied more than
4 times during the growing season, it should be used with other
fungicides to avoid drug resistance.
Pyrimethanil can also be used in apples, pears, strawberries,
leeks, beans and other crops.
Fumigation Fungicide 98%TC Pyrimethanil technical
Chemical Abstracts name
Chemical Abstracts name
Physical and chemical properties
Appearance: colorless crystalE
mpirical Formula C12H13N3
Molecular Weight 199.2517
1.Pyrimethanil has protective activity in control of gray mould and both
protective and curative activity in control of leaf scab.
2.Pyrimethanil is inhibitor of methionine biosynthesis leading to inhibition of
the secretion of enzymes necessary for infection. 3.Pyrimethanil has good effective to control of gray mould on vines, fruit(such as
strawberry), vegetables(such as tomato and cucumber) and
ornamentals, control of leaf scab on pome fruit such as apple and
1,Acute oral LD50 for rats is 4150 to 5971mg/kg
2.Acute skin and eye LD50 for rats and mice >2000mg/kg,
Non-irritating to skin and eyes of rabbits.
3.It is not carcinogens, teralogenisis and mutagenesis.
It is faint soluble in water, soluble in organic solvents, such as
ethyl alcohol, diethyl and benzene.