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Registered Crop Input Products / REASON® 500SC FUNGICIDE

REASON® 500SC FUNGICIDE

PCP #27462 · Gowan Company, LLC · Fungicide

Group 11

Group 11 suspension concentrate fungicide containing fenamidone at 500 g/L for control and suppression of various fungal diseases including downy mildew, late blight, early blight, and Pythium diseases in vegetables, tobacco, ginseng, and herbs.

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Registered uses (14)

Crop × pest × application rate combinations from the official label. Rates converted to per-acre. Always confirm against the official label PDF before applying.

CropTargetRatePHI
BasilDowny Mildew (Peronospora belbarhii)162 mL/acre2 d
BeanControl of Cottony Leak (Pythium aphanidermatum), Suppression of Phytophthora blight (Phytophthora capsici)243 mL/acre3 d
BroccoliSuppression of Downy Mildew (Peronospora parasitica)162–243 mL/acre2 d
CarrotDamping off and cavity spot caused by Pythium spp.243 mL/acre14 d
CucumberDowny mildew (Pseudoperonospora cubensis)162 mL/acre14 d
GinsengPhytophthora blight and root rot caused by Phytophthora cactorum243 mL/acre14 d
KaleSuppression of Downy Mildew (Peronospora parasitica)162–243 mL/acre2 d
OnionSuppression of Downy mildew (Peronospora destructor)162 mL/acre7 d
PotatoEarly Blight (Alternaria solani), Late blight (Phytophthora infestans)80.9 mL/acre14 d
PotatoSeed-borne late blight (Phytophthora infestans)––
SpinachSuppression of Downy Mildew (Peronospora farinosa f. sp spinaciae)162 mL/acre2 d
TobaccoBlue mold (Peronospora tabacina)162–243 mL/acre30 d
TomatoEarly Blight (Alternaria solani), Late blight (Phytophthora infestans)80.9 mL/acre14 d
Turnip GreensDowny mildew (Peronospora parasitica)162–243 mL/acre2 d

About this content. This page presents the official PRD label as published by Health Canada's Pesticides Regulatory Directorate (formerly the Pest Management Regulatory Agency), the source of record. Always read the official label and consult your provincial pesticide- application authority before use. Report an error.

Quick facts

Active ingredients
fenamidone 500 g/L
CAS 24181-95-1
Formulation
suspension concentrate
Resistance group
Group 11
First registered
2003-11-17
Registration expiry
2028-12-31