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Ontario Grain Farmer Magazine is the flagship publication of Grain Farmers of Ontario and a source of information for our province’s grain farmers. 

Grain Farmers of Ontario

Features

Tar spot: field report

AGRONOMIC INFORMATION FROM ONTARIO'S CROP SPECIALISTS

- 1. DETECTION Since 2021, the first signs of tar spot stroma (black spots) have been observed during the first two weeks of July in southwestern Ontario. The warm, humid conditions (relative humidity < 75 per…
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