Corn School: Inside the tar spot management toolbox

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Tar spot is taking a bite out of yields in some Ontario cornfields but there is hope growers will have effective management tools to manage the leaf disease.

Characterized by tar-like speckling on the upper surface of corn leaves, the fungal pathogen has been delivering yield hits ranging from 20 to 60 bushels per acre (in highly infected fields) since it was first identified in Indiana and Illinois in 2015.

Last year, the disease was confirmed in Ontario and Ontario Ministry of Agriculture, Food and Rural Affairs plant pathologist Albert Tenuta has been working to identify the best defence against the pathogen. On this episode of RealAgriculture's Corn School, Bernard Tobin visits Tenuta at his disease nursery near Rodney, Ontario for an update on his 2020 research work.

#CornSchool #TarSpot #Disease #Corn #Agronomy #Farming

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