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Temperature and Herbicide Performance
In South Dakota, the spring can come with a wide range of temperature fluctuations. This will affect the performance of burndown herbicides. Depending upon the target weed, type of herbicide and application rate, there will likely be decreased weed control in cooler temperatures.
How to Stop Drift
The goals of applying any crop protection products include: increasing effectiveness, mitigating drift, and maximizing profits. We will focus on mitigating drift, even though all three interact with each other.
Does Early Fungicide at Tillering Result in a Profitable Yield?
Tan spot and powdery mildew pathogens are two residue-borne pathogens that can infect wheat early in the season. These diseases can lead to poor tillering, and their continued development can lead to yield loss.
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.
Wheat Streak Mosaic Disease Developing in Winter Wheat
Although the majority of winter wheat in the state is rated good to excellent in the recent USDA-NASS report, a few winter wheat fields in Central South Dakota have been diagnosed with wheat streak mosaic disease (WSMD) caused by wheat streak mosaic virus (WSMV).
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.
The Fusarium Head Blight Prediction Tool
The Fusarium head blight prediction tool, available through Penn State University and Mesonet at SDState, uses weather variables to predict the risk for Fusarium head blight in wheat.
Stripe Rust Found in Winter Wheat at Low Severity
Stripe rust was observed in the crop performance trials at the Dakota Lakes Research Farm in Hughes County and at Ideal in Tripp County. At both locations, stripe rust was at a low severity.
Best Management Practices for Wheat Production
The Wheat Best Management Practices manual offers a comprehensive guide for optimizing yields, maximizing profits and ensuring long-term sustainability in wheat production.
Effects of Late Spring Frost on Alfalfa
Forage research indicates that, although alfalfa is considered to have good cold temperature tolerance, minor frost damage may occur when plants are exposed to air temperatures slightly below freezing for several hours, and more severe damage will be seen when temperatures drop below 25°F for four or more hours.