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Corn

All Corn Content

Four photos depicting field progress for corn, winter wheat, oats and soybean as of July 10, 2020.

Follow the Fields Tour

Follow the field crops during the 2020 growing season.

aerial view of South Dakota farm and surrounding land

Pest & Crop Newsletter

SDSU Extension publishes the South Dakota Pest & Crop Newsletter to provide growers, producers, crop consultants, and others involved in crop production with timely news pertinent to management of pests, diseases, and weeds in South Dakota.

Left: Brown moth with light markings present on a green leaf. Right: Brown moth with light markings present.

Army Cutworm Moths Among the Recently Reported Western Bean Cutworm Moths

Last week, we published an article about the presence of western bean cutworm moths being very abundant throughout Central and Western South Dakota. However, when talking with an entomologist from a neighboring state, they suggested the moths could also be army cutworm moths.

Brown moth with light markings present on a green leaf.

Western Bean Cutworm Moths Observed in South Dakota

Over the weekend, South Dakota experienced strong southerly winds, which brought warm temperatures to the state. In addition, these winds also brought insect pests north, which included moths of the western bean cutworm.

A field divided into two planting areas. The left area has young corn plants emerging from the soil. The right has no visible corn emergence yet.

2020 Corn Growing Degree Days Update

Spring planting progress of corn in 2020 has been much ahead of a typical year in South Dakota. Crop development, however, seems slow.

a map showing the precipitation outlook for June 2020

Summer 2020 Climate & Drought Outlook

May 22, 2020

With alternating cool and warm weather patterns throughout the last few months and the summer season ahead, temperature continues to be a challenge for climate forecasters in South Dakota.

A stunted planting of corn with purple coloring on its leaves.

Fallow Syndrome: What is it and how do I deal with it?

Fallow syndrome received its name from the dry plains states, where fields routinely benefited from the additional moisture available after a year where the ground was fallowed. Corn sometimes had symptoms of phosphorus deficiency when grown on this previously fallowed ground, thus it received its current name, “fallow syndrome.”

A group of black heifer calves in a feedlot.

Using Feedlot Manure as a Crop Nutrient Source

Factsheet that reviews the steps to obtain a manure application rate based on crop need, soil and manure testing.

Young corn plants emerging in a field during early spring.

Corn Emergence During Cold Weather

After a very welcome warm and relatively dry April, the month of May has brought winter-like temperatures again to South Dakota. Due to cold and wet conditions, concerns of the cold temperatures have been expressed by producers who have recently planted corn.

Young, emerging corn plants with browning on their leaf tips due to frost damage.

Low Temperature Damage to Corn and Soybean

Temperatures are forecast to reach 32°F or lower in large areas of South Dakota for several nights beginning on May 7, 2020. While a relatively low percentage of planted crops are likely to be emerged at this point in time, producers may still want to evaluate individual fields for crop damage.