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Invasive Species Resources

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Pennsylvania State University. Cooperative Extension.
Pennsylvania State University. Cooperative Extension.
Pennsylvania State University. Cooperative Extension.
Pennsylvania State University. Cooperative Extension.
Pennsylvania State University. Cooperative Extension.
Oregon State University. Extension Service.
This concise publication gives useful information for homeowners, master gardeners, and professional landscapers about the boxwood blight disease: its symptoms, sanitation measures when it is discovered on a property, and preventive measures.
Pennsylvania State University. Cooperative Extension.
Pennsylvania State University. College of Agricultural Sciences. Entomology.
Portland State University.

Pennsylvania State University. School of Forest Resources.

North Dakota State University Agriculture and University Extension.
University of Massachusetts - Boston.
Pennsylvania State University. Pennsylvania Sea Grant.
See also: Aquatic Invasive Species: Resources for additional species information
University of Massachusetts Extension. Landscape, Nursery, and Urban Forestry Program.
University of Massachusetts Extension. Landscape, Nursery, and Urban Forestry Program.
University of Massachusetts Extension. Landscape, Nursery, and Urban Forestry Program.
University of Massachusetts Extension. Landscape, Nursery, and Urban Forestry Program.
University of Massachusetts - Amherst. UMass Extension. Greenhouse Crops & Floriculture Program.
University of Massachusetts - Amherst. UMass Extension. Greenhouse Crops & Floriculture Program.