Our ID Notes may contain important tips necessary for distinguishing this gall from similar galls and/or important information about the taxonomic status of this gall inducer.
Gallformers ID Notes
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Leaf curl on Ambrosia ambrosioides and likely other species of Ambrosia induced by one of many possible species of mealybug (Pseudococcidae). Often tended by ants. ScaleNET lists 30 species on the genus but none on this host specifically. Observed in Arizona in July.
Unless noted otherwise in the ID Notes, observations of this gall are collected in the Observation Field Gallformers Code with value ambrosia-mealybug-leaf-curl on iNaturalist. You can view them here: