By Brooklyn Evas, Pam Sharp, Shelley Mitchell, Ryan Patton, Justin Quetone Moss. Knowing how to recognize poison ivy, oak and sumac can save you from a miserable red itchy rash. All three of these closely related plants contain an irritating, oily sap called urushiol. Urushiol causes many people to break out in a rash when it comes in contact with their skin. Being able to identify these plants is beneficial considering there are many plants that look similar, but are harmless. This Fact Sheet is to help inform and educate the general public on how to identify poison ivy, poison oak and poison sumac so they can be avoided.

By Josh Lofton and Josie Rice. Learn about failed cotton herbicide rotation restrictions to sorghum in Oklahoma.

Weed control basics for preemergence and postemergence herbicide principles in fruit tree crops.

By Hannah M. Baker, Hannah E. Shear, Derrell S. Peel, Kellie Curry Raper, Samuel D. Fuhlendorf. Learn about the implementation, cost and benefits of patch-burn grazing.

The steps, resources and references available to manage weeds in small fruit crops.

A native to Europe, smallseed falseflax was first introduced to North America in the 19th century, likely as a contaminant in flax seed (Linum usitatissimum L.) and other crops (Francis and Warwick 2009).

Management strategies including variety selection, soil nutrients, weed management, hay cutting, curing, baling and marketing for alfalfa crops.

As herbicide-resistant weeds increase, a push continues for crop managers to integrate multiple weed management strategies.