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See also: Pacific Northwest Plant Disease Management Handbook

NA-PR-07-05

Laurel wilt is a disease of woody plants in the laurel family (Lauraceae). Hundreds of millions of redbay (Persea borbonia) trees have been killed by laurel wilt in the southeastern Atlantic Coastal Plain region of the United States (US). The disease has also killed large numbers of sassafras (Sassafras albidum) trees in forests and landscapes, and avocado (Persea americana) trees in commercial production. As of October 2019, laurel wilt was known to occur from Texas to North Carolina, south through Florida and north to Kentucky. Laurel wilt is expected to continue spreading through sassafras in the eastern US, and is a potential threat to California bay laurel (Umbellularia californica) in the western US and to lauraceous species elsewhere in the world.
See also: Region 8 - Forest & Grassland Health for more information.

Pest Alerts are a signature program of the North Central IPM Center to help support initiatives to track, report and manage invasive pests.

Learn how to identify invasive Phragmites, how it differs from the native form, and information about its distribution and biological traits which contribute to its spread.

How do Great Lakes water levels affect expansion and management? This geonarrative aims to provide land managers, decision makers, and the public with a historical perspective on the influence of water levels on Phragmites expansion and to identify Phragmites populations best suited for management in high water.
See also: Geonarratives for all USGS geonarrative / story map resources

PNW 758 - A Pacific Northwest Extension Publication

Plant Invaders of Mid-Atlantic Natural Areas, Field Guide is a portable resource for both novice and expert. This practical book is intended for people interested in maintaining or restoring natural areas - from parks and preserves to residential landscapes. Use this book as an introduction to invasive plants to help you recognize, report, prevent, control and teach others about them. Managing invasive plants is crucial if we want our native plants and animals to thrive. Plant Invaders provides information on 92 aquatic and terrestrial invasive species threatening our region, guidance on control methods, discussion of the effects of climate change on invasive plants, explanations and maps of ecoregions and physiographic provinces, and suggestions for native plant alternatives.

Citation: Swearingen, J.M. and J.P. Fulton. 2022. Plant Invaders of Mid-Atlantic Natural Areas, Field Guide. Passiflora Press. 200 pp.

This resolution addresses invasive species management and adds substantial new policy, including: a call to address the destructive relationship between invasive grasses and wildfires; mechanisms to enhance regional invasive species research, planning, and coordination; and recommendations to Congress and federal agencies on improving invasive species management on federal lands and supporting state-led management efforts.

WGA resolutions are in effect for three years and then expire or are renewed. See all current WGA Policy Resolutions.