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Home → Publications → National Nursery Proceedings → 1988 → Occurrence and Persistence of Fusarium within Styroblock and Ray Leach Containers

Occurrence and Persistence of Fusarium within Styroblock and Ray Leach Containers

Fusarium spp. are common pathogens of containerized conifer seedlings. They often colonize inner walls of styroblock and Ray Leach? pine cell containers. Highest amounts of Fusarium were detected at the bottom of cells. As many as 95 percent of the cells at some nurseries, sampled prior to cleaning, were colonized with Fusarium. Hot water cleaning and dipping in bleach solutions reduced, but did not eliminate these fungi within containers. Fumigation with methyl bromide was no more effective than standard hot water treatments for styroblock containers; however, it was more effective in reducing levels of Fusarium within pine cells. Contaminated containers may be an important inoculum source of these pathogens for subsequent seedling crops.


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Author(s): Robert L. James, R. Kasten Dumroese, David L. Wenny

Publication: National Nursery Proceedings - 1988

Event: Combined Meeting of the Western Forest Nursery Associations
1988 - Vernon, CAN