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Back to Registered Crop Input Products
Registered Crop Input Products / PHOSTROL™ Fungicide

PHOSTROL™ Fungicide

PCP #30449 · Belchim Crop Protection Canada Inc. · Fungicide

Group P07

Group P07 fungicide containing mono- and dibasic sodium, potassium, and ammonium phosphites for control and suppression of various fungal diseases including Phytophthora, Pythium, downy mildew, and other diseases in potatoes, vegetables, fruits, berries, greenhouse crops, and ornamentals.

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Registered uses (29)

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

CropTargetRatePHI
AppleFly Speck (Schizothyrium pomi)1.78 L/acre0 d
AppleSooty Blotch (Gloeodes pomigena)1.78 L/acre0 d
BasilSuppression of Pythium root rot (Pythium spp.), Downy mildew (Peronospora belbahrii)1.17–2.35 L/acre0 d
BlueberryControl of Septoria Leaf Spot (Septoria spp.)1.17–2.35 L/acre0 d
BlueberrySuppression of Phytophthora Root Rot (Phytophthora spp.)1.17–2.35 L/acre0 d
BroccoliSuppression of Downy Mildew (Peronospora parasitica)1.17–2.35 L/acre0 d
CeleryDamping off caused by Pythium spp.––
Chinese CabbageSuppression of Pythium root rot (Pythium spp.), Downy mildew (Hyaloperonospora parasitica)1.17–2.35 L/acre0 d
CucumberSuppression of Downy Mildew (Pseudoperonospora cubensis)1.17–2.35 L/acre0 d
CucumberSuppression of Phytophthora Blight (Phytophthora capsici), Root rot and fruit rot (Phytophthora spp.), Downy mildew (Pseudoperonospora cubensis), Pythium root rot and fruit rot (Pythium spp.)1.17–2.35 L/acre0 d
GinsengSuppression of Foliar and Root Rot (Phytophthora cactorum)2.27 L/acre0 d
GrapeDowny Mildew (Plasmopara viticola)1.17–2.35 L/acre0 d
HazelnutSuppression of Phytophthora root rot (Phytophthora spp.)1.17–2.35 L/acre0 d
LettuceDowny Mildew (Bremia lactucae)1.17–2.35 L/acre0 d
LettuceSuppression of Pythium root rot (Pythium spp.), Control of Downy mildew (Bremia lactucae)1.17–2.35 L/acre0 d
OnionSuppression of Downy Mildew (Peronospora destructor)1.17–1.74 L/acre0 d
OrnamentalsSuppression of Phytophthora Root rot (Phytophthora spp.)––
PeaSuppression of Early Season Root Rot (Aphanomyces eutiches, Pythium ultimum)1.17 L/acre21 d
PotatoBrown Leaf Spot (Alternaria alternata)1.17–4.69 L/acre0 d
PotatoEarly Blight (Alternaria solani)1.17–4.69 L/acre0 d
PotatoLate Blight (Phytophthora infestans)1.17–4.69 L/acre0 d
PotatoPink Rot (Phytophthora erythroseptica)2.35–4.69 L/acre0 d
PotatoSilver Scurf (Helminthosporium solani)1.17–4.69 L/acre0 d
RaspberrySuppression of Phytophthora Root Rot (Phytophthora spp.)2.1 L/acre0 d
RaspberrySuppression of Phytophthora Root Rot (Phytophthora spp.)2.1 L/acre0 d
StrawberryLeather Rot (Phytophthora cactorum)1.17–2.35 L/acre3 d
StrawberrySuppression of Crown and root rot (Phytophthora spp.), Pythium root rot (Pythium spp.), Control of Leather rot (Phytophthora cactorum)1.17–2.35 L/acre0 d
TomatoSuppression of Late Blight (Phytophthora infestans)1.17–2.35 L/acre0 d
TomatoSuppression of Phytophthora blight (Phytophthora capsici), Root rot (Phytophthora spp.), Pythium root rot and fruit rot (Pythium spp.)1.17–2.35 L/acre0 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
phosphites 53.6 %
CAS 14901-63-4
Formulation
Commercial Liquid
Resistance group
Group P07
First registered
2012-06-11
Registration expiry
2028-12-31