What is in this article?:
- White mold poses threat to soybean, dry bean yields
- Fostering conditions of white mold
- Minimizing white mold risk
- Timing critical for success
Minimizing white mold risk
David Feist, project development leader with MANA Crop Protection, reminds growers that white mold is not your typical disease where traditional management practices and generalized inputs are guaranteed to work as normally expected.
“White mold will persist in the soil for years and germinate when it comes in contact with a sensitive host crop like soybeans, dry beans, alfalfa or clover. Weeds like pigweed, ragweed and lambsquarters also provide a haven for white mold to survive, season after season. Unfortunately, there is no single factor that will prevent white mold from developing,” Feist says. “Relying on a preventative approach to get ahead of the problem is the best defense strategy.”
In recent years the industry has struggled with full-scale solutions for white mold due to limited crop protection tools that could zero-in on mastering control. The good news is that MANA Crop Protection has prioritized white mold as a critical focus for technical development — bringing a new-age tool to the rescue.
Incognito 4.5F fungicide is the company’s recent solution for effective management of white mold in soybeans, dry beans and other crops. While providing superior protection against white mold, Incognito also delivers broad-spectrum control over a range of other diseases like Frogeye leaf spot, Brown rot, Anthracnose, Stem and Pod Blight, scab and rusts.
Specific to white mold on soybeans, MANA Crop Protection recommends one application of Incognito at early bloom (R1 to R2 stage) followed by a second application seven to 14 days later if conditions are favorable for disease pressure. Feist notes that thorough coverage of soybean blossoms at time of application is critical for high-level success using 15 to 20 ounces per acre during each application. For disease control beyond white mold on soybeans, Incognito rates can range from 10 to 20 ounces per acre.
On dry beans, the manufacturer recommends one spray pass of Incognito when 100 percent of plants have at least one open bloom or when conditions are favorable for disease development. For single-application use, apply between 30 to 40 ounces per acre. When multiple applications are required, first application should be 20 to 30 ounces per acre and administered when 10 to 30 percent of the plants have at least one open bloom followed by sequential applications on a four- to seven-day interval.