California: Walnut Blight: Dealing With Resistance — It’s Complicated

🕔Apr 12, 2019Walnut Blight Disease Cycle Walnut blight is caused by the bacterial pathogen Xanthomonas arboricola pv. juglandis (Xaj). This devastating bacterium can overwinter in between scales of healthy buds, “waiting” to […]

Georgia Pecans: Example Fungicide Programs; When to Start Spraying

🕔Apr 2, 2019I get requests each year to provide an example of a fungicide program for pecans. DMI/Stobilurin mixes include Absolute, Brixen, Custodia, Quilt, Top Gard EQ, and Amistar Top (used to […]

Iowa Soybeans: Evaluating Foliar Fungicides in 2018

🕔Feb 13, 2019Soybean foliar fungicides were evaluated for foliar disease management and yield response across seven Iowa State University research and demonstration farms in 2018. These included the Northwest Research and Demonstration […]

Pesticide Label References Available Online

🕔Feb 13, 2019This cold and snowy weather hopefully has everyone dreaming of warmer days this spring.  The 2019 growing season will be here before we know it, but now is a great […]

Iowa Corn: Evaluating Fungicide Efficacy in 2018

🕔Feb 13, 2019In 2018, we tested various foliar fungicides on corn at six locations in Iowa: ISU Northwest Research and Demonstration Farm (NWRF), Sutherland; Northeast Research and Demonstration Farm (NERF), Nashua; Northern […]

Texas High Plains: Wheat Rust Showing Up, Treatment Not Recommended

🕔Nov 8, 2018Recent and abundant rains in some areas have producers concerned about leaf rust that is appearing in High Plains wheat fields, but a Texas A&M AgriLife Extension Service specialist said […]

Midwest Corn: Tar Spot Disease – 3 Tips for 2019, Start with Hybrid Selection – DTN

🕔Oct 5, 2018Tar spot on corn may have arrived in the U.S. in 2015, but 2018 will definitely go down as the disease’s first year in the major leagues — and it […]

Tennessee Soybeans: Diseases, Fungicides, and Soil Sampling

🕔Aug 8, 2018Most soybeans have gotten into reproductive growth stages and diseases may have started appearing although at low levels. To better identify diseases and guide management decisions use the resources below…

Florida Peanuts: Fungicide Spray Strategies – Alternating or Mixing Modes of Action

🕔Jul 27, 2018Fungicide resistance or reduced efficacy is a concern when managing peanut diseases, especially the foliar diseases early and late leaf spot. Managing these concerns requires an integrated approach with constant […]

Ohio Soybeans: Frogeye Leaf Spot Showing Early in Susceptible Varieties

🕔Jul 10, 2018From the scouting reports from the county educators and crop consultants – most of the soybeans in the state are very healthy with no disease symptoms.  However, as the news […]

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