Growths on underside of many leaves on my pear tree? by Grockle11 gardening uk 1 Comment acornvulture 6 hours ago Looks like the fruiting bodies of Pear Rust, a disease caused by a fungus.Write A CommentYou must be logged in to post a comment.
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Looks like the fruiting bodies of Pear Rust, a disease caused by a fungus.