Picoxystrobin

Picoxystrobin

啶氧菌酯

methyl (E)-3-methoxy-2-{2-[6-(trifluoromethyl)-2-pyridyloxymethyl]phenyl}acrylate

methyl (αE)-α-(methoxymethylene)-2-[[[6-(trifluoromethyl)-2-pyridinyl]oxy]methyl]benzeneacetate

117428-22-5

C₁₈H₁₆F₃NO₄

Fungicides > Strobilurin fungicides

 A cereal fungicide used to control a wide range of diseases including brown rust, tan spot, powdery mildew and net blotch

 

corn, soybeans, cereals,  dry beans, peas, canola.

SC = Suspension concentrate (=flowable concentrate)

Propiconazole+Picoxystrobin
Picoxystrobin+Epoxiconazole
Difenoconazole+Picoxystrobin
Cyproconazole+picoxystrobin

Molecular weight:367.3; Density:1.4 (20 °C); Melting point:71.9-74.3°C; Vapour pressure:5.5 × 10-3 mPa (20 °C); Henry constant:6.5 × 10-4 Pa m3 mol-1 calc.); Partition coefficient(n-octanol and water):logP = 3.6 (20 °C); Solubility:In water 3.1 mg/l (20 °C);

Ecotoxicology: 
Algae: EC₅₀ (72 h) for Selenastrum capricornutum 56µg/l.Bees: LD₅₀ (48 h) >200 mg/beeBirds: LC₅₀ (8 d) for bobwhite quail >2250 mg/kg. NOEL (21 w) for mallard ducks 1350 mg/ kg.Daphnia: EC₅₀ (48 h) 18µg/l.Fish: LC₅₀ (96 h) (two species) 65-75 µg/l.Worms: LC₅₀ (14 d) for Eisenia foetida 6.7 mg/ kg soil.Other aquatic spp.: EC₅₀ for Chironomus riparius 19 mg/ kg (28 d, dosed to sediment), 140 µg/l (25 d, dosed to water)Other beneficial spp.:Lab. and field tests with 6 species of non-target arthropods indicate low risk to populations. LR₅₀ (7 d) for Typhlodromus pyri 12.6 g/ ha; LR₅₀ (2 d) for Aphidius rhopalo 

Environmental fate: 
Animals:In rats, well absorbed extensively metabolised and rapidly eliminated. Does not accumulate in meat or milk.Soil:Rapidly degraded in soils, with CO₂ as the major product; lab. DT₅₀ (aerobic) 19-33 d; field dissipation DT₅₀ 3-35 d. Not mobile in soil under field conditions; K_ocPlant:Residues in cereals are low (<0.01-0.20 mg/ kg).  WATER SOLUBILITY: 3.1 mg/l at 20°C

Hazard Class:O (Obsolete as pesticide, not classified)