Phostrol fungicide label expanded for hazelnuts

The Pest Management Regulatory Agency (PMRA) recently announced the approval of a minor use label expansion registration for Phostrol fungicide for suppression of Phytophthora root rot (Phytophthora spp.) on hazelnuts in Canada. Phostrol fungicide was already labeled for management of diseases on a wide range of crops in Canada. This minor use proposal was submitted by the British Columbia Ministry of Agriculture, Food, and Fisheries as a result of minor use priorities established by growers and extension personnel. 

 

The following is provided as an abbreviated, general outline only. Users should be making disease management decisions within a robust integrated disease management program and should consult the complete label before using Phostrol fungicide.

 

Crop(s)

Target

Rate
(L product/ha)

Application Information

PHI (days)

Hazelnuts

Phytophthora root rot (Phytophthora spp.)

2.9 – 5.8 

For preventative suppression of phytophthora root rot begin foliar, drench, or drip irrigation applications when conditions are favourable for disease (i.e. wet conditions or at early symptoms of disease).  Continue on a 14 day interval up to a maximum of 4 applications per year.

0

To reduce runoff from treated areas into aquatic habitats avoid application to areas with a moderate to steep slope, compacted soil, or clay. Avoid application when heavy rain is forecast. Contamination of aquatic areas as a result of runoff may be reduced by including a vegetative strip between the treated area and the edge of the water body.

 

Follow all other precautions, restrictions, and directions for use on the Phostrol fungicide label carefully.

 

For a copy of the new minor use label contact your regional supply outlet, or visit the PMRA label site: https://bit.ly/3q2a3qj

 

Source:  Josh Mosiondz, minor use coordinator, OMAFRA. 

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Publish date: 
Monday, December 20, 2021

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