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Sooty Mold: A Saprophytic Fungi Observed in Wheat
While out crop scouting, sooty mold was observed in some South Dakota wheat fields. Sooty mold is a saprophyte, which can be easily mistaken for a disease caused by plant pathogens.
Monitor Soybean for Bean Leaf Beetle Activity
Some of the bean leaf beetles we are currently observing in South Dakota may make up the population of overwintering adults. While these adults are in soybean, they can cause significant amounts of defoliation to the leaves.
Leaf Scorch and Sunscald in the Garden
Long stretches of hot, dry weather will upset the growing habits of all plants and will lead to some unusual symptoms on leaves and produce in the garden. July and August are a prime time to watch for leaf scorch and sunscald.
Stem Canker Developing in Some Soybean Fields
A few soybean fields are showing some wilting plants due to stem canker. The field entries and head rows are the most-impacted parts of these fields. The current dry conditions are stressing the plants and causing early development of the disease.
Be Aware of Fungicide Resistance in Field Crops
A few soybean and corn fields have received or will be receiving a fungicide application this season. We recommend scouting fields treated with fungicides to determine if diseases are controlled as expected or if there are signs of reduced sensitivity.
Garden and Yard Problems Solved: How to Submit Photos and Samples to Our Experts
Garden and lawn issues can sometimes be diagnosed by simply looking at a photo. Photos give our Extension experts a place to start, and providing them with the best possible photo can help the process.
Goss's Bacterial Wilt and Leaf Blight of Corn
Fact sheet for identifying Goss’s bacterial wilt and leaf blight of corn, also known
as bacterial leaf freckles and wilt.
Crown Rust of Oats
Fact sheet on Crown Rust of Oats for agronomist and growers.
Utilize a Fungicide For Crown Rust Prevention in Oats
If you are growing oats this year for grain, be sure to scout and plan a fungicide application to protect the oats from crown rust.
Charcoal and Fusarium Rots Observed in Early Senescing Soybean Plants
The drought conditions in South Dakota have led to early soybean senescence in some areas. However, some of the early senescing may be due to dry-season diseases, such as charcoal and Fusarium rots.