All posts by Sally Reed

13 May 2026

Postemergence Pigweed Control

13 May 2026
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Palmer amaranth remains one of the most difficult weeds to manage, and when pigweed escapes preemergence control, postemergence decisions can quickly turn into a kitchen sink approach where multiple products are added to the tank. Because postemergence options depend on the crop system and trait technology, we evaluated a wide range of postemergence programs in 2025 to better understand overall control trends. Continue reading →


27 Aug 2025

Bleacher Herbicides Under Pressure: The Emerging Risk of HPPD Resistance

27 Aug 2025
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Green plants growing in a field
Palmer amaranth escaping bleacher herbicide application

Pigweed problems are nothing new for growers across the region. With Palmer amaranth having confirmed resistance to five herbicide modes of action in Tennessee, control options continue to be limited. Historically, bleacher (Group 27 HPPD inhibitors) applications have provided sufficient control, especially in corn. In recent years, there has been growing concern for the level of control observed when using these products. Continue reading →