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Fragilaria crotonensis

MODERATE

Fragilaria crotonensis

Overview

Seen at 100x magnification, sample from the west branch Oswegatchie river. Sample collected on 10/3/2026.

Type
Other
Severity
MODERATE
Source
iNaturalist

Symptoms

Geographic Spread

Treatments

Consult Extension Service

Cultural PracticeEffectiveness: MODERATE

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.

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Frequently Asked Questions

What is Fragilaria crotonensis?

Seen at 100x magnification, sample from the west branch Oswegatchie river. Sample collected on 10/3/2026.

What are the symptoms of Fragilaria crotonensis?

Where is Fragilaria crotonensis currently found?

Fragilaria crotonensis is currently active in Michigan, New York. It has been reported in 2 total states across the United States.

How do I treat Fragilaria crotonensis?

Treatment options for Fragilaria crotonensis include: Consult Extension Service. Treatment approaches may include chemical, biological, cultural, and mechanical methods depending on the severity and context.

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