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Roses > Stem > Stems swollen

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Credit: Jeff Hahn
Credit: Jeff Hahn
Credit: Jeff Hahn
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Rose stem girdler

Occurs during summer
Clumps of leaves wilt and turn brown
Also look for swelling in stem
Small (1/4 inch long), bullet-shaped, iridescent gold; rarely seen
More information on Rose Stem Girdler...

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Credit: David Zlesak
Credit: Lynne Hagen
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Mossy Rose Gall

First appears in May/June
Mossy, fern-like spherical growths on stems
Greenish or reddish
More information on Mossy Rose Gall...

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Credit: Jeff Hahn
Credit: Jeff Hahn
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Spiny Rose Gall

First appears in May/June
Spiny, spherical growths on stems
Greenish during summer, brown during winter
More information on Spiny Rose Gall...

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Credit: Michelle Grabowski
Credit: Michelle Grabowski
Credit: Michelle Grabowski
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Crown Gall

Round to irregular overgrowth or tumor at soil line or on roots
Young galls are light green or white and soft
Old galls are hard and dark colored or black
Plant may be stunted, produce few flowers and leaves
Occasionally galls are seen higher on the stem

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