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Registered Crop Input Products / WINFIELD PHOSPHITE EXTRA

WINFIELD PHOSPHITE EXTRA

PCP #30650 · Winfield Solutions LLC · Fungicide

Group 33Registration expired

Group 33 fungicide containing mono- and di-potassium salts of phosphorous acid for control of various diseases including late blight, downy mildew, pink rot, and Phytophthora diseases in potatoes, fruiting vegetables, brassicas, herbs, leafy vegetables, cucurbits, grapes, berries, and outdoor ornamentals.

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Registered uses (11)

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 belbahrii)1.21–2.02 L/acre1 d
BlueberryAnthracnose fruit rot (Colletotrichum acutatum)1.62–2.02 L/acre1 d
GrapeDowny Mildew (Plasmopara viticola)1.17–2.35 L/acre1 d
KohlrabiDowny mildew (Hyaloperonospora parasitica)1.21–2.43 L/acre1 d
OrnamentalsDowny mildew (Peronospora spp.)–1 d
OrnamentalsPhytophthora root rot and foliar blight (Phytophthora spp., except P. ramorum, P. cryptogea)–1 d
PotatoLate blight (Phytophthora infestans), Pink rot (Phytophthora erythroseptica)2.02–4.05 L/acre1 d
RadicchioDowny mildew (Bremia lactucae)1.21–2.83 L/acre1 d
StrawberryLeather rot (Phytophophthora cactorum)1.62–2.02 L/acre1 d
TomatoLate blight (Phytophthora infestans), Partial suppression of phytophthora foliar blight (Phytophthora spp.)2.02–4.05 L/acre1 d
ZucchiniDowny Mildew (Pseudoperonospora cubensis)1.21–2.02 L/acre1 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
mono- and di-potassium salts of phosphorous acid 53 %
Formulation
liquid
Resistance group
Group 33
First registered
2013-01-03
Registration expiry
2025-07-11