Daren Mueller

Extension Field Crop Pathologist and the coordinator of the IPM program. The views expressed on this site do not reflect Iowa State University.

[I See Dead Plants Podcast @ISDPPodcast]

New episode this week!
Listen here:
https://t.co/mbE4tle0GE
I interviewed Dr. Deb Samac of @USDA_ARS. We discussed Deb's work with alfalfa and the disease bacterial stem blight.

@ncipmc @CropNetwork @NAFANews

[Dan Striegel @djsinseia]

Southern Rust? Never heard of her.
What Cheer, Iowa. USA. #pftour25 #harvest25

[Kellan Heavican @BRNAgNews_KH]

Know the differences between brown stem rot and SDS - @Talon_Mues with @UNL_IANR discusses how to identify them.

Story and interview from yesterday's field day on @brownfield: https://t.co/8lQ2QcoBtP

[Iowa State Plant Protection @ISU_IPM]

@CropNetwork From central Iowa:

[Daren Mueller @dsmuelle]

@alabamaED @ncipmc @travisfaske Mostly MMV and southern corn leaf blight.

[Daren Mueller @dsmuelle]

Got to spend the last few days reviewing diseases on corn grown in Hawaii. Always fun to see what shows up in other parts of the world. @ncipmc @travisfaske

[Dylan Mangel @DylanMangel]

White mold is on plants in eastern Nebraska and the forecast is favorable for more.

[Daren Mueller @dsmuelle]

Out scouting some local fields before the next storm rolls in. One field had a lot of SDS. Our research plots have SDS just starting. @IowaSoybeans @CropNetwork

[Crop Protection Network @CropNetwork]

Southern rust of corn ID and management at https://t.co/xz8PmaWN0a.

Ask local Extension for more info. @DTelenko @BorisCamiletti @maddishires @tjcksn @alabamaED @travisfaske @baldpathologist @bobkemerait @DaisyHAhumada @YuanZeng3 @OnofreLab @MahDuffeck @badgercropdoc @MartinChilvers1 @MizzouIPM @MandyBish1 @PACropDoc @ppp_trey @alisonrISU @thppdd_lab @cropdoc08 @TNplantDR @NationalCorn #corn #southernrust #grow25 #scout25

[Wade Webster @BisonBeanDoc]

Very surprising to see this early, but SDS symptoms have appeared in southeast ND. Soybeans were just getting to R2 in this particular field.

[Talon Mues @Talon_Mues]

Are toads in your cornfield an indicator of adequate moisture? No idea. A more reliable method is to use crop ET or soil moisture sensors. Find links to some great cropwatch articles in the comments.

[Daren Mueller @dsmuelle]

With diseases starting to pop up, a quick reminder that some of those popular disease prediction apps (Tarspotter and Sporecaster) are no longer active. These models have been move to the Crop Protection Network. https://t.co/irUloHyOBh @CropNetwork

[Daren Mueller @dsmuelle]

Too early for this post - but SDS, white mold and downy mildew showing up in parts of Iowa. 😬

[Nicole Heslip @BRNAgNews_NH]

Fusarium smuggling case spotlights need to follow #research protocols. Hear more about the process in our interview with @MSU_PSM's @MartinChilvers1 @brownfield #agnews https://t.co/NeFaaigdKd

[Crop Protection Network @CropNetwork]

Farmers, ag industry, CCAs: Take the 2025 Soybean Seedling & Stem Disease Survey at https://t.co/fdQrqZkids

Your insights are essential. Help us understand important soybean disease issues & the value of the Crop Protection Network.

@alabamaED @alisonrISU @dsmuelle @cropdoc08 @DTelenko @MartinChilvers1 @badgercropdoc @baldpathologist @ppp_trey @travisfaske @badgercropdoc @SoybeanScience1 @SoyResearchInfo @UnitedSoy #ussoy

[Darcy Telenko @DTelenko]

I suggest bookmarking these 3 new tools to help make disease management decisions this year @CropNetwork @PurdueExtension @INCornFarmers @INSoybean @PurdueBPP @Ag_PMT
https://t.co/UrlTdjtLID

[RiceCropCare @ricecropcare]

It will be a pleasure to share my Career Journey with the @LSU Graduate Students on April 14th. #LSUagCenter First picture I took when I arrived to start my career in the U.S. At that time, I didn't even know what @CropNetwork or APS meant. But that’s where my journey began.

[Crop Protection Network @CropNetwork]

Soybean Disease Loss Estimates from the United States and Ontario, Canada — 2024 from Extension at https://t.co/TrB4jguzWD.

@baldpathologist @alabamaED @dsmuelle @travisfaske @SpurlockLab @bobkemerait @BorisCamiletti @DTelenko @cropdisease @ppp_trey @LSUNematology @MartinChilvers1 @MandyBish1 @DylanMangel @NCLegumeLady @W_Webster74 @MahDuffeck @rodrigobonofre @AlbertTenuta @PACropDoc @maddishires @YuanZeng3 @badgercropdoc +others @FieldAdvisor @arkansassoybean @SoybeanScience1 #soybean #USSoy @UnitedSoy

[Crop Protection Network @CropNetwork]

In 2024, disease reduced corn yield by an estimated 6% in the U. S. and 3.7% in Ontario, resulting in an estimated loss of 963.4 million bushels.

Get info on the most important corn diseases at the NEW pub https://t.co/CjqXxtXwPA.

From Extension. @alabamaED @travisfaske @csuextension @UDExtension @UGAExtension @BorisCamiletti @DTelenko @alisonrISU @dsmuelle @ISU_IPM @OnofreLab @KSUPlantDr @cropdoc08 @PatePlantSci @ppp_trey @LSUAgCenter @MartinChilvers1 @UMNExt @baldpathologist @MandyBish1 @tjcksn @ccecornell @DaisyHAhumada @NDSUExtension @CFAES_OSU @MahDuffeck @AlbertTenuta @PACropDoc @MPlumblee @maddishires @epp_tn @txextension @YuanZeng3 @badgercropdoc #corn #agx #agtwitter #extension

[Daren Mueller @dsmuelle]

@NicoleStecklein Umm. We only found some of these silly diseases because I thought it was something else.