Penn State Extension is offering a managing invasive plants workshop 8:30 a.m.-3 p.m. July 24 at 4184 Dorney Park Road, South Whitehall.

Managing invasive plants will provide participants with the knowledge and skills to properly identify invasive plants and to develop strategies for treatment and control.

Invasive weeds and pests are a major threat to the state’s natural and cultivated landscapes, spreading quickly and displacing or killing native plants.

Invasive species (plants, insects, and animals) are costing the United States more than $138 billion each year, due to their economic impact on agriculture, forestry, fisheries, waterways, wildlife, and ornamental landscapes.

Ecologists now rank invasion by exotic plants, animals and pathogens second only to habitat loss as a major threat to local biodiversity.

A portion of the day will be spent in the field looking at invasive plants, the results of management, and a calibration demonstration.

There is a fee for the workshop. To register, go to extension.psu.edu/managing-invasive-plants.

Registration deadline is July 17.

For more information, contact Julianne Schieffer at jxs51@psu.edu or call 610-489-4315.