Stay up to date on news and events!

We will send you periodic messages with information about upcoming educational events, funding opportunities, and news about invasive species in Oklahoma.

Info Graphic Gallery

Oklahoma State University Natural Resources Extension has been producing helpful social media info graphics about invasive species.  Check out the gallery and share your favorites on your social media accounts!


New Webinars This Fall

  • Introducing the official Oklahoma Invasive Species Watch List and Searchable Database

    • Thursday, October 27, 11:00 a.m. - Register

  • Invasive Trees of Urban Areas and Native Alternatives for Landscaping

    • TBA

Invasive Plant Fact Sheet!

New OSU Extension Fact Sheet about Chinese Tallow.


The Chinese Tallow, or simply Tallow Tree, is used primarily as an ornamental landscape tree because of its colorful fall foliage.  Unfortunately, it has proven to be invasive in a wide variety of habitats in boarding states.  Learn more about this plant and how to eradicate it if you find - Download the fact sheet!

Become an Official Member!

Join the battle against invasive species in our state!  

Membership funds contribute to:

  • small grants fund

  • development and printing of outreach materials

  • student scholarships to related conferences​


Karan A. Rawlins, University of Georgia,

The invasive Callery Pear

The problem!​​

The callery pear (Pryus calleryana) is a medium- sized tree that has commonly been used as an ornamental due to its’ showy white flowers in early spring and beautiful fall foliage. This rapidly growing tree provides shade around homes and commercial property and birds consume the fruit. There are both thorned and thornless cultivars. The Bradford pear or Chanticleer pear are common cultivars that show resistance to disease and pests and tolerate a range of environmental conditions.

Eichhornia crassipes.jpg