Fragilaria crotonensis in New York
MODERATEOther
Fragilaria crotonensis is currently active in New York. Watch your susceptible trees closely and act early.
About Fragilaria crotonensis
Seen at 100x magnification, sample from the west branch Oswegatchie river. Sample collected on 10/3/2026.
Symptoms to watch for
Treatment options
Consult Extension Service
Contact your local cooperative extension service for diagnosis and site-specific treatment recommendations. Accurate identification is essential before treatment.
Recommended Products & Tools
Helpful supplies for managing Fragilaria crotonensis. Always read and follow label directions, and confirm a diagnosis before treating.
Most tree problems trace back to soil — start here.
Sharp, clean cuts to remove affected wood — a tree-care essential.
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Need help with Fragilaria crotonensis in New York?
Connect with ISA Certified Arborists serving New York:
Browse all New York arborists →Frequently asked questions
Is Fragilaria crotonensis in New York?
Fragilaria crotonensis is currently active in New York. Watch your susceptible trees closely and act early. It was first recorded here on July 28, 2026.
What does Fragilaria crotonensis look like?
How do I treat Fragilaria crotonensis?
Options include: Consult Extension Service. Confirm the diagnosis before treating, and consider a certified arborist for high-value trees.