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Biology and Management of Thickhead (Crassocephalum crepidioides) in Ornamental Crop Production

Shawn Steed, Chris Marble, andNathan Boyd

Release Date: 4/28/2026

DOI: 10.32473/EDIS-ep534-2017

Agriculture

Abstract

A UF/IFAS numbered Fact Sheet for Commercial audience(s). Published by Integrated Pest Management

About this Publication

This document is ENH1271, one of a series of the Department of Environmental Horticulture, UF/IFAS Extension. Original publication date November 2016. Revised November 2019 and October 2025. Visit the Ask IFAS website at https://ask.ifas.ufl.edu/ for the currently supported version of this publication.

How to Cite

Bechtloff, A., Steed, S. T., Boyd, N. S., & Marble, S. C. (2017). Biology and Management of Thickhead (Crassocephalum crepidioides) in Ornamental Crop Production. EDIS, 2017(1), 4. https://doi.org/10.32473/edis-ep534-2017

Authors

Shawn Steed
Shawn Steed
County agent
University of Florida

Extension agent IV, M.S., environmental horticulture/ornamental, UF/IFAS Extension Hillsborough County

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Chris Marble
Chris Marble
Contact
Specialist
University of Florida

associate professor, ornamental and landscape weed management, Department of Horticultural Sciences, UF/IFAS Mid-Florida Research and Education Center, Apopka, FL

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Nathan Boyd
Nathan Boyd
Specialist
University of Florida

associate center director and professor, weed management of strawberries and vegetables, Department of Horticultural Sciences, UF/IFAS Gulf Coast Research and Education Center, Wimauma, FL

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Publication #ENH1271

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