Ask a Question forum→Need help to identify a fungal disease

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Ontario
zhypher99
May 31, 2020 9:39 AM CST
Hello,

I need help to identify a fungus that causes havoc to my linden tree. I just discovered this summer that my young linden tree suffers a fungal disease. Since I planted a few years ago, this fungal disease weakens the tree but does not kill it. The tree starts out strong every growing season but the leaves start to die off (all green part of the leaves die off except the veins). This summer the fungus effectively affected almost all leaves so removing the diseased leaves is not practical. Here are the picture of an affected leaf and magnified pictures of the fungus. The fungus is on the underside of the leaves.

What kind of fungicide can be used to treat this fungus? I sprayed a copper based fungicide yesterday but it does not seem to help. Thank you for your help.
Thumb of 2020-05-31/visitor/58c16c
Thumb of 2020-05-31/visitor/bbdc00
Thumb of 2020-05-31/visitor/8de769

Name: one-eye-luke US.Vet.
Texas (Zone 8a)
Quitter's never Win
Hummingbirder Birds Organic Gardener Dog Lover Cat Lover
oneeyeluke
Jun 1, 2020 12:59 AM CST
Mycosphaerella leaf spot
NOT A EXPERT! Just a grow worm! I never met a plant I didn’t love.✌

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