The elm zigzag sawfly is still in the early detection phase in North America. Please report all sightings of elm zigzag sawfly through iMapInvasives, to help determine the distribution of this species, ahead of any management efforts. Since most elm trees can recover from elm zigzag sawfly defoliation events, control may not be necessary, and research into management options is ongoing.
Floating primrose willow is an aquatic perennial species that floats on water or sprawls along mud in wet environments. It is one of WNY PRISM’s approaching region priority species. Keep a lookout!
Parrot feather is an aquatic perennial species named for its bright green, feather-like appearance.
Red swamp crayfish are crustaceans that are dark red in color and grow to 2-5 inches in length. The plates on the body of the red swamp crayfish touch on the center of its back distinguishing from the native white river crayfish.
Report an Invasive Species
wnyprism@buffalostate.edu
(716) 878.4708
