Galls
Galls feature prominently in many plant species. They are usually caused by insects, mites or fungi, but can occasionally merely be hormonal or genetic defects.
This project is an attempt to collect such data for further research.
Please try and always "tag" observations of the galling agent (even if you dont know what it is) with "Galls". You can also tag the host plant observation. If you are posting an interaction, you can tag both.
Anyone can add any observation to this project. To do so, merely join the project. It will then go into the list of projects that you can attach to any observation.
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Useful link from @jurga_li
https://extension.okstate.edu/fact-sheets/plant-galls-caused-by-insects-and-mites.html
Hairy galls are caused by mites
This is another useful link. They are mostly European host genera and priority is for miners, butbthere are keys and illustrations for the gallers, too: https://bladmineerders.nl/scientific-plant-names-genera/
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