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Invasive Insects

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Updated: October 23, 2024

Spotted Lanternfly in Home Gardens

What should you do if you find spotted lanterflies in your yard or garden in Maryland? Please report them to the Maryland Department of Agriculture. Here, we provide information about this invasive insect's life cycle, where it is currently located in Maryland, and what you can do to manage these nuisance insects around home landscapes.
spotted lanternfly side view
Updated: October 17, 2024

Euonymus Leaf Notcher

Euonymus leaf notcher is an invasive insect and pest of ornamental euonymus plants.
euonymus leaf notcher
Updated: October 17, 2024

Box Tree Moth

Be on the lookout for a new pest of boxwoods. Box tree moth caterpillars chew the leaves of boxwood plants and can cause complete defoliation. Boxwoods are their only host plant. This pest has been found in several US states, but it is not in Maryland yet (as of August 2024). If you find it, please report it to us.
a white moth and a green caterpillar on a boxwood branch
Updated: October 17, 2024

Emerald Ash Borer (EAB)

Emerald Ash Borer (EAB) is an exotic invasive insect that is a serious threat to Maryland ash trees. It has killed many millions of ash trees across the Mid-West and Eastern U.S.
emerald ash borer
Updated: October 17, 2024

Viburnum Leaf Beetle

Viburnum leaf beetle (Pyrrhalta viburni) is an introduced pest of viburnum in North America.
viburnum leaf beetle
Updated: October 17, 2024

Sirex Woodwasp

The Sirex woodwasp (SWW) is an exotic, invasive pest considered to be one of the top 10 most serious forest insect pests worldwide.
sirex wood wasp
Updated: October 17, 2024

Kudzu Bug

Kudzu bug is an invasive insect that has also been found in Maryland on the Eastern shore, in southern and central Maryland.
kudzu bug adult
Updated: October 17, 2024

Japanese Cedar Longhorned Beetle

Japanese cedar longhorned beetle is an invasive insect that was first detected in Maryland in 2011.
japanese cedar longhorn beetle adult
Updated: October 17, 2024

Brown Marmorated Stink Bug

The brown marmorated stink bug (Halyomorpha halys) is an invasive insect that has become a fairly common pest in North America. It is a nuisance pest in homes and gardens.
brown marmorated stink bug
Updated: October 17, 2024

Asian Longhorned Beetle

Asian longhorned beetle (ALB) is a very serious exotic insect pest that was introduced in solid wood packing material from China. It is known to attack 29 species of deciduous hardwood trees.
asian longhorned beetle