Q What’s caus­ing these bumps on geum leaves?

Garden Answers (UK) - - Problems Solved -

JANET ANDALUN, BY EMAIL

AThe bumps on your geum leaves are prob­a­bly caused by a gall mite. Ce­ci­do­phyes nudus is a na­tive gall mite that fre­quently at­tacks na­tive Geum ur­banum. They’re dif­fi­cult to con­trol so it’s best to sim­ply re­move af­fected leaves and dis­pose of them. It’s un­likely to af­fect other plants in the gar­den.

Gall mite dam­age

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