With Spring here and crop stands beginning to grow, it is time to shift focus to the next operation of the 2026 growing season: spraying. These operations are "make or break" for crop health, whether you are applying weed control, warding off insects, or managing bacteria and fungus. While these operations require financial and time investments, performing proper maintenance and calibrations directly impacts success rates and your ultimate return on investment.

This summer, Iowa State University’s Research and Demonstration Farms are once again hosting a series of field days across the state. These events offer a valuable opportunity to learn about the latest crop production research, management practices, and emerging agricultural technologies directly from Iowa State specialists and researchers.

“Cutworm” is a common name for many caterpillars in the moth family Noctuidae. They are insects (not worms!) that chew, or cut through, plants above or below the soil line in the spring. One notable exception is the western bean cutworm, which occurs later in the season and targets reproductive tissues rather than cutting stems.

While planting progressing had occurring in the western and northern part of the state, planters were finally able to roll across much of the entire state starting late last week and over the weekend. In addition to planting, other field activities including spraying and fertilizer applications are also taking place. Some of the first-planted corn and soybeans have now emerged.

Iowa State University Extension and Outreach Field Agronomists have completed their spring survey of subsoil moisture in northwest Iowa. Subsoil moisture sampling in Iowa dates to February 1954 when ten sites were chosen for soil moisture sampling. In 1959, the sampling increased to 22 locations, and in 1971, 61 locations were sampled. Today, 18 locations are sampled in northwest Iowa.