Some weeds earn their reputation. Lesser celandine, yellow nutsedge, and creeping bentgrass are a real pain for lawn care professionals, each for different reasons. Dr. Aaron Patton breaks down the biology behind why these three are so stubborn and walks through practical strategies for managing them. You will leave with a clearer understanding of how each weed grows and spreads, when to time your control efforts, and which products and cultural practices give you the best shot at winning the battle.