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Invasive Woody Plants
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Invasive Woody Plants
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Updated: March 8, 2024
Weed Identification Photos in Maryland
Identify common Maryland weeds using our extensive collection of photos.
Updated: July 11, 2023
Introduction to Invasive Plants in Maryland
What are invasive plants and why are they a problem? Here are examples of invasive plants and their impact on people and wildlife.
Updated: February 22, 2023
Invasive Species
What are invasive species? How to identify invasive plants, insects, and diseases and how to manage them in the landscape.
Updated: March 18, 2024
Invasives in Your Woodland
Since its debut as a regular Branching Out feature in 2016, "Invasives in Your Woodland" has profiled a wide variety of invasive plant species that threated the health of Maryland's ecosystems.
Updated: March 15, 2024
Invasives in Your Woodland: Tree-of-Heaven (Ailanthus)
Tree-of-heaven has been receiving a significant amount of attention lately, and not just because it is a fast-spreading invader of woodlands throughout the mid-Atlantic states and beyond. the recent discovery of a new invasive insect in Pennsylvania, and its subsequent spread into adjoining areas, has lent new voice to advocates for the plant’s removal. Spotted Lanternfly, a recent arrival from Asia prefers tree-of-heaven as its host. This has led to an increased movement to remove tree-of-heaven from the landscape.
Updated: January 16, 2024
Natural Area Management Services Directory: Invasive Plant and Vine Control
Native ecosystems in our woodlands are under increasing pressure from invasive plant species and from both native and invasive vines. Providers of invasive plant and vine control are listed here.
Updated: September 6, 2023
Invasive Plants to Avoid Buying for your Yard and Garden in Maryland
Invasive plants that should not be introduced into your yard and garden.
Updated: August 10, 2023
Invasive Tree Control
How to manage invasive trees.
Updated: August 8, 2023
Tree of Heaven
How to identify and manage invasive tree-of-heaven (Ailanthus altissima).
Updated: June 15, 2023
Invasives in Your Woodland: Callery Pear
Drive along many of Maryland’s major roads in the spring, and you will see what seems like a wall of white, as the Callery pear (and its offshoot, the Bradford pear) are in bloom. While these may be an impressive sight, these trees are an invasive and highly competitive species.
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