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Fenpropathrin |
Chemical name: |
cyano(3-phenoxyphenyl)methyl 2,2,3,3-tetramethylcyclopropanecarboxylate |
Molecular weight: |
349.4
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Molecular formular: |
C22H23NO3 |
Mode of action: |
Non-systemic insecticide and acaricide with contact and stomach action. |
Uses: |
Control of many species of mites (except rust mites) and insects (e.g. whiteflies, lepidopterous larvae, leaf miners, leafworms, bollworms, etc.) on pome fruit at 3-20 g/ha, citrus fruit at 6-15 g/ha, vines, hops, vegetables at 180-225 g/ha, ornamentals (including ornamental trees) at 180-250 g/ha, cotton at 180-336 g/ha, field crops at 180-225 g/ha, and glasshouse crops (cucurbits, tomatoes, ornamentals, etc.) at 30-150 g/ha. |
Physical chemistry: |
Form Yellow-brown solid (tech.). M.p. 45-50 °C V.p. 0.730 mPa (20 °C) Kow logP = 6 (20 °C) S.g./density 1.15 (25 °C) Solubility In water 14.1 μg/l (25 °C). In xylene, cyclohexanone 1000, methanol 337 (all in g/kg, 25 °C). Stability Decomposed in alkaline solutions. Exposure to light and air leads to oxidation and loss of activity. |
Mmmalian toxicology: |
Oral Acute oral LD50 for male rats 70.6, female rats 66.7 mg/kg (in corn oil). Skin and eye Acute percutaneous LD50 for male rats 1000, female rats 870, rabbits >2000 mg/kg. Not a skin irritant; mild eye irritant (rabbits). Non-sensitising to skin. Inhalation LC50 (4 h) for rats >96 mg/m3. ADI (JMPR) 0.03 mg/kg b.w. [1993]. Other Non-mutagenic. Toxicity Class WHO (a.i.) II; EPA (formulation) II EC classification T+; R26| T; R25| Xn; R21| N; R50, R53 |
Ecotoxicology: |
Birds Acute oral LD50 for mallard ducks 1089 mg/kg. Dietary LC50 (8 d) for bobwhite quail and mallard ducks >10 000 mg/kg diet. Fish LC50 (48 h) for bluegill sunfish 1.95 μg/l. |
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