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 Mingying Xiang. Learn about how in Oklahoma, drought is a frequent challenge, especially during the hot summer months. Preparation is essential for enhancing the resilience of lawn against dry periods. Implementing the right practices early on allows homeowners to improve the resiliency of their lawns from the damaging effects of summer drought conditions. A lawn that is well-prepared not only stands a better chance of surviving summer drought but also requires less water overall, leading to more sustainable management.

A list of proven Oklahoma plants that are tolerant for environmental conditions and friendly for gardens.

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

By Mingying Xiang and Justin Quetone Moss. Learn about how adjusting mowing heights can enhance freeze tolerance in bermudagrasses used on golf course putting greens. The results indicate that higher mowing heights can improve winter survivability and minimize damage during cold periods. These findings have practical implications for turf management, potentially decreasing the necessity for winter covers and associated expenses, particularly with the use of cold-hardy cultivars.

By David Hillock, Casey Hentges and Mike Schnelle. Learn about what ferns are suitable for Oklahoma, their culture, life cycle, propagation, problems that they might face if not in proper growing conditions and how to give them proper care.

By Megha Poudel and Bruce Dunn. Learn about carbon dioxide, its concentration in relation to plants, supplementation, the effect of supplemental CO2 on different growing factors, sources of carbon dioxide and control and distribution of CO2.

By Becky Carroll. Learn about native pecans and the best growing conditions in Oklahoma.