Trioza adventicia
The inducer of this gall is unknown or undescribed.
Detachable: integral
Color: brown, red, green
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Location: upper leaf, between leaf veins
Form: pocket
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▲Notes
Trioza eugeniae
Not truly a synonym: The psyllid galling Syzgium in N. America was MISTAKENLY identified as T. eugeniae for many years
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.
Biology and Management of the Eugenia Psyllid (Trioza eugeniae Froggatt)
“
After eggs hatch, newly emerged nymphs crawl to the undersides of leaves where they settle, become immobile and feed by sucking sap ... Feeding causes a pit to develop around each yellowish, scale-like nymph. Excessive pit formation creates severely distorted or blistered leaves and shoots which appear stunted.
”- A. James Downer, Carlton S. Koehler, and Timothy D. Paine: (1991) Biology and Management of the Eugenia Psyllid (Trioza eugeniae Froggatt)©
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