Leaf rust occurs across the U.S. and Canada and can cause severe yield loss in epidemic years. Leaf rust develops on lower leaves first and progresses up the plant. Each year, spores are blown north on wind currents from tropical areas. When conditions are favorable, the infection cycle will continually repeat and result in secondary infections. Host resistance is an important management tool. Fungicides are labeled for leaf rust. A fungicide decision should be influenced by varietal susceptibility, weather forecast, and yield potential. Fungicide should be applied preventively and target the flag leaf (FGS 8-9). See leaf rust fungicide efficacy ratings from Extension at cropprotectionnetwork.org/pu… @KelseyFAndersen @kstateextension @StrayerScherer @travisfaske @BorisCamiletti @DTelenko @cropdisease @ppp_trey @MartinChilvers1 @MandyBish1 @OSUwheatdisease @okstate_ag @baldpathologist @AlbertTenuta @maddishires @badgercropdoc @NDSUExtension @wheatgrowers @wheatsd @mnwheat @SaskWheat @IdahoWheat @coloradowheat @TexasWheat #wheat #fungicide #rust

After tillering, stripe rust of wheat develops parallel to leaf veins, giving the foliage a distinct striped appearance. After infection, the fungus may produce new generations of spores in as few as 10 days under optimal conditions. The primary means to manage stripe rust is to plant resistant varieties. Consider applying fungicides to susceptible varieties if stripe rust has been detected in the region and forecasted conditions are favorable for disease development and spread. Applications at flag leaf emergence help protect the flag leaf and reduce yield loss. Read more in An Overview of Stripe Rust from Extension at cropprotectionnetwork.org/pu…. @badgercropdoc @MartinChilvers1 @cropdoc08 @AlbertTenuta @travisfaske @SaskWheat @wheatgrowers @USWBSI @wheatsd @mnwheat #wheat @pcdmn @baldpathologist

Mycotoxin Management in Corn Silage. Check out the new CPN TV episode at youtu.be/nK_y3V1fG8U. Featuring @badgercropdoc & @MartinChilvers1. @UWMadison @MSUEFieldCrops @MSUExtension @WIAgContent @wicorngrowers @MI_Corn @NationalCorn #corn #silage #mycotoxins