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Crop Protection Database

Cymoxanil

Action/Use:
  • Fungicide
Use: For downy mildew on grapes; late blight on cucurbits, hops, potatoes, and tomatoes. Postinfection application halts development of disease for spray program flexibility. Curzate* reduces inoculum. Besiege* for potato blight on potatoes.
Identification
Common Name(s): Cymoxanil (ANSI, ISO, BSI)
Chemistry
Properties: Pure, white crystalline solid. Melting point 160°-161°C. Specific gravity 1.31 at 25°C. Vapor pressure 6 x 10-7 mm Hg at 25°C (extrapolated). Decomposes into natural plant constituents. Solubility: dimethylformamide 18.5g/100g solvent; acetone 10.5; chloroform 10.3; methanol 4.1; benzene 0.2; hexane < 0.1.
Cymoxanil
Mode of Action / Resistance Management
Chemical Group: cyanoacetamide-oxime
Taget Site: unknown
Mode of Action: unknown
Action Group: FRAC Code 27
Comments / Risk Notes: Low to medium risk
Registration
Outside U.S.A.: Equation* Pro. Besiege* in UK.
Environmental Guidelines
Water Solubility: 1000 ppm
Hazards: Fish: LC50 18.7 mg/l (96 h) (rainbow trout); 13.5 mg/l (bluegill). Bird: (a.i.) LC50 2847 ppm (8 day) (quail); >10,000 ppm (mallard). Bee: Nontoxic
Soil Particle Adsorption: Normal conditions, half-life in soil <2 weeks
Safety Guidelines
Signal Word: WARNING
Toxicity Class: II
Toxicity: (Rat): Oral LD50 1100 mg/kg. (Rabbit): Dermal LD50 >3000 mg/kg (a.i.)
Product/waste Disposal: Must be disposed of by special means (suitable incineration, etc.) in accordance with local regulations
Spill Control/cleanup: Solid spillage should be picked up with an industrial vacuum cleaner and disposed of in accordance with local regulations
Suppliers and Branded Products
Premix Products:
+ Bordeaux Mixture
+ Carbendazim+ Mancozeb
+ Carbendazim+ Oxadixyl+ Thiram
+ Chlorothalonil
+ Copper Hydroxide+ Mancozeb
+ Copper Oxychloride
+ Copper Oxychloride+ Dichlofluanid
+ Copper Oxychloride+ Metiram
+ Copper Sulfate
+ Copper Sulfate+ Mancozeb
+ Copper Sulfate, Basic
+ Copper Sulfate, Tribasic
+ Dichlofluanid
+ Dithianon
+ Fenamidone
+ Fludioxonil+ Metalaxyl-M
+ Folpet
+ Folpet+ Fosetyl-aluminum
+ Folpet+ Mancozeb
+ Mancozeb+ Oxadixyl
+ Mancozeb+ Thiophanate-methyl
+ Metiram
+ Propineb+ Triadimefon
+ Zoxamide
Discontinued Names:
Antar-Pol*
Cimomanil*
Cymotine*
Cymozim*
Dyrene* CM
Ertimix*
Ferzate*
Idroxanil*
Ronicur*
Stream* 44
Tri Fl+Karnak*