Diseases & Disorders
All Diseases & Disorders Content
Cucurbit Diseases in South Dakota
Cucurbit crops grown in both the field and in high tunnels face disease pressure from many fungal and bacterial diseases. Learn how to identify and manage some of the most common ones.
Chilling Injury
Concerned about row crop emergence due to cool spring weather? Learn what crops are most vulnerable to chilling injury and how you can mitigate risk during spring planting.
Crown Rust of Oats
Crown rust continues to be the most economically damaging and important fungal diseases of oats in South Dakota. Learn how to recognize and manage it in oat fields this growing season.
Oat Crown Rust Risk Low This Year
Oat fields recently scouted were found with very low levels of crown rust. This is primarily due to warm and dry weather conditions that we are currently experiencing.
Planting Spring Wheat Into Corn or Milo Residue: Considerations for Scab
Due to current grain prices and other reasons, growers may be considering planting spring wheat into fields that were planted to corn or milo last season. While this type of crop rotation is not generally recommended, economic and logistical challenges sometimes may dictate otherwise.
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.
Low Temperature Effects on Winter Wheat
Low temperatures during the early morning hours of May 9–11, 2020 may have had detrimental effects on winter wheat in some areas of South Dakota. However, cooler spring temperatures that have slowed the winter wheat development this year may have actually been beneficial to S.D. producers, as later-maturing wheat is not as susceptible to injury from freezing temperatures.
Oats Crown Rust Inoculum Abundant This Year
Crown rust is the most important fungal disease of oats in South Dakota. In years with heavy disease pressure, susceptible cultivars can have over 80% yield loss due to crown rust. The presence of crown rust inoculum on buckthorns can be an indication of the likely risk for crown rust to develop during the growing season. Buckthorns scouted recently were loaded with crown rust inoculum.
Cull Cows and Trichomoniasis
With increasing amounts of cows being sold at the sale barn with reproductive years left, there are some precautions to be aware of prior to bringing females home to re-breed.
Embellisia Skin Blotch of Garlic
Have you noticed irregular, dark areas on the outer scales of your garlic bulbs? It's possible it might have Embellisia skin blotch, a fungal disease that can develop during periods of high summer moisture.