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Small Populations of Soybean Aphids Observed in South Dakota
While scouting fields last week, we observed small populations of soybean aphids near Volga, South Dakota. Although no sustained populations were observed, it is a good reminder that soybean aphid scouting should occur throughout the growing season to prevent population outbreaks.
Is a Fungicide Needed for Developing Corn Diseases?
Corn is starting to tassel in several locations across the state. This is also the growth stage when a fungicide may be applied to control fungal leaf diseases. Diseases currently starting to develop are: anthracnose leaf blight, common rust and eyespot.
Wet Conditions Likely Into Fall Season
Many locations in South Dakota have already received as much precipitation this year as they do in an entire average year. The latest climate outlook from NOAA’s Climate Prediction Center shows increased chances of wetter than average conditions to continue into the fall season.
What Livestock Owners Should Know About Vesicular Stomatitis
Because it’s not a common occurrence in most areas every year, reports of Vesicular Stomatitis (VS) in the media often raise questions among livestock owners. Here are answers to some of the more-common ones that may pop up.
Yellow Sweet Clover: Information and Management
Sweet clover is an opportunistic plant that is going to be abundant in pastures and hay fields when growing conditions are favorable, ideally for two consecutive years. Although it can cause problems, it is valuable to wildlife and pollinators and is a nutritious forage source.
Horse Flies and Deer Flies Becoming Abundant
The above-average precipitation this year has led to increased numbers of horse flies and deer flies across South Dakota. Widespread flooding and an overall abundance of available water has made conditions perfect for these flies.
Holcus Spot or Plant Injury?
Is your corn developing spots? Corn fields have been found with what appears to be Holcus spot, a bacterial disease. Upon further investigations, the leaves were found to be negative for any plant pathogens.
Assess Your Fields for Ergot and Fusarium Head Blight Before Harvest
The 2019 wheat harvest is well underway in South Dakota, with many acres of winter and much of the spring wheat crop left to harvest. To date, reports on yield and quality have been variable, depending on when the crop was seeded, weather conditions at important growth stages (such as flowering and grain fill) and disease pressure throughout the season.
August 2019 Climate Outlook: Cool and Wet
According to the latest climate outlook update, odds are favoring that August 2019 will be cooler than average. The update was released by NOAA’s Climate Prediction Center on July 31, 2019.
The Clorox® Soak Test
This test is used in the field to determine the percentage of soybean (Glycine max) seed damage due to combining or threshing. It is also adaptable to use in the laboratory. The test can be used for beans (Phaseolus vulgaris) and other large dicotyledonous seeds which may be injured in combining, threshing, or seed cleaning.