Aaron Hager is standing in a resistant waterhemp hot zone. The soybean rows surrounding him are a blanket of five-way herbicide resistance: atrazine, ALS inhibitors, PPO inhibitors, HPPD ...

Waterhemp just got uglier. The first documented case of resistance to post-emergence HPPD inhibitor herbicides is being confirmed today, July 19. HPPD-herbicides inhibit 4-hydroxyphenyl pyruvate ...