Dimethirimol
Action/Use:
- Fungicide
Use:
For powdery mildew on cucumbers, melons, and certain ornamentals.
Identification
Common Name(s): Dimethirimol (BSI, ISOE, JMAF); ; Diméthyrimol (ISOF)
Chemistry
Class: Pyrimidinol.
Formula: C11H19N3O.
Properties: Colorless needles. Melting point 102°C. Vapor pressure 11 x 10-6 torr at 30°C. Stable in acidic and alkaline solutions. Readily soluble in aqueous solutions of strong acids. Solubility at 25°C: acetone 45 g/l, chloroform 1200 g/l, ethanol 65 g/l, xylene 360 g/l.
Mode of Action / Resistance Management
Taget Site: A2: adenosin-deaminase
Mode of Action: Nucleic acids synthesis
Action Group: FRAC Code 8
Comments / Risk Notes: Medium risk. Resistance management required.
Registration
U.S.A.: Not registered.
Environmental Guidelines
Hazards: Fish: LC50 42 mg/l (24 h) (rainbow trout). Bird: Oral LD50 4000 mg/kg (hen). Bee: Nontoxic
Water Solubility: 1.2 g/l at 25°C
Safety Guidelines
Signal Word: CAUTION
Toxicity Class: III
Toxicity: (Rat): Oral LD50 2350 mg/kg. (Rabbit): Dermal LD50 >400 mg/kg. Nonirritating to skin, eyes
Handling/storage Cautions: Wash hands and exposed skin before meals and after work. Do not contaminate ponds, waterways, and ditches with chemical or used container. Store in original container, tightly closed, in a safe place. Wash out container thoroughly and dispose of safely. Stable for at least 2 years under normal storage conditions in unopened containers
Suppliers and Branded Products
Basic Producers:
Syngenta (Milcurb*)
