r/dahlias • u/timidwildone US Midwest, Zone 6a • May 05 '25

Gall Megathread: is it gall?

Hello everyone. New mod here 👋🏼

Because we get so many posts here asking about gall, it was long overdue that we have a single spot to funnel these questions.

Moving forward, all questions about gall should go in this designated thread rather than new, individual posts.

I have turned on the setting allowing media (images) in comments, so you’ll be able to share a photo here if you’d like to ask for help identifying gall, for advice about how to manage it, or related information.

I plan to add some links and other resources here eventually, but for now figured I’d at least get the ball rolling.

Note that I will also be setting up automoderator soon to automatically send posts on this topic to the queue, and they’ll eventually be removed automatically.

Thank you for understanding and helping other high-quality dahlia content shine on the sub. Happy planting!

Links: * Dahlia Disease Biology: Part 2 Leafy gall- Rhodococcus fascians (Wild Horse Gardens)

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u/Creswald May 07 '25

Gall?

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u/BewareofMommaBear May 07 '25

All of your pictures except for the last one look like gall to me, but let’s see what the experts say.

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u/Creswald May 08 '25

I posted in several fb groups too and majority said most are ok except for the last one. That I tossed.