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Behind the disease insects crept through Iowa corn
Southern rust dominated the conversation during the 2025 growing season in Iowa, forcing growers to react quickly to unexpected disease pressure. But while disease grabbed most of the attention, other problems were quietly developing in the field. Insects and weeds continued to threaten yield and grain quality, often without drawing the same level of attention. Todd Cogdill with FMC says insect pressure in particular, expanded in parts of Iowa during the 2025 season. Western bean cutworm has...















