Summer Species

The species listed below are predominately detected in during the summer in New York State.  Contact your local PRISM to find out what priority species have been identified for your region. 

Emerald ash borer

Emerald ash borer (Agrilus planipennis) is a small green beetle which attacks and kills North American ash species.  The adult beetle is about 1/2 inch long and 1/8 inch wide, smaller than a penny!  Downy and hairy woodpeckers eat the larvae and leave distinctive marks on ash trees, called "blonding".

Wild parsnip

(Pastinaca sativa)

Wild parsnip is a herbaceous plant that can grow up to 5 ft tall.  The sap is toxic and produce chemical burns when exposed to sunlight, a process called phytophotodermatitis.

Photo Courtesy: Leslie J. Mehrhoff,

Oak wilt

(Ceratocystis fagacearum)

Oak wilt is a disease that affects oak trees.  It is caused by the fungus Ceratocystis fagacearum, which develops in the xylem, the water carrying tissue of trees.

 Photo Courtesy: William M. Ciesla,

Water chestnut

(Trapa natans)

Water chestnut is an aquatic invasive plant that forms dense mats on the top of slower moving areas of fresh water bodies.

Photo Courtesy: John M. Randall,

Multiflora rose

(Rosa multiflora)

Multiflora rose is a multi stemmed, thorny, perennial shrub that can grow up to 15 ft. The flowers are small, white to pinkish, 5-petaled flowers occur abundantly in clusters on the plant.

Photo Courtesy: Jessica Ingham

Yellow flag Iris

(Iris pseudacorus)

Flowers are pale to bright yellow or cream colored and 7-9 cm wide. The leaves are flat, erect and linear with a raised midrib.

Photo Courtesy: Tyler Levy

Jumping worms

(Amynthas spp.)

Jumping worms appear to be smooth, glossy gray or brown. They are 1.5 to 8 inches long with a white clitellum (band near the head of the worm).

Photo Courtesy: Public Reports

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Check out some of the target species in NYS!


Contact Us:

New York Natural Heritage Program 

625 Broadway 5th Floor 

Albany, NY  12203

T: 518-402-8913


iMapInvasives is managed by the New York Natural Heritage Program (NYNHP), which is a partnership between SUNY College of Environmental Science and Forestry and the NYS Department of Environmental Conservation, with funding from the New York State Environmental Protection Fund.

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Photo by Chris Evans, University of Illinois, CC-NC 3.0