Tamra Jackson-Ziems

University of Nebraska Professor, Extension Plant Pathologist 🌽diseases, Farmer's wife, questionable accent IYKYK

[Tamra Jackson-Ziems @TamraJacksonZ]

Hi Everyone! It's really me!
This is a replacement account for @tjcksn that was hacked earlier this year 🙄 Please follow me for more corn disease+ info from Nebraska. Thanks all!

[Nebraska CropWatch @UNL_CropWatch]

#Tarspot continued its spread in 2026, with new confirmations in southwest Nebraska. @UNLExtension experts explain what it means for #corn #farmers & how to manage future risks: https://t.co/79tUysMsaF

#NebExt #NebraskaAg #AgTwitter #CropProduction #Farming #Ag #CropDisease

[Crop Protection Network @CropNetwork]

Set the combine to harvest clean, whole kernels, as aflatoxins & fumonisins are often concentrated in light, damaged kernels.

To minimize kernel damage, use the lowest possible cylinder speed necessary to shell grain effectively while maintaining acceptable loss levels (less than 1%). Excessive cylinder speed is the leading cause of kernel damage, so adjust concave clearance to avoid breaking cobs excessively before increasing cylinder speed. Ensure sufficient airflow to remove chaff & small, light kernels.

Read more at https://t.co/Oif6N2FGo2.

@croptoxcare @travisfaske @baldpathologist @MartinChilvers1 @ppp_trey @badgercropdoc @AlbertTenuta @alisonrISU @MandyBish1 @DaisyHAhumada @PACropDoc @maddishires @TamraJacksonZ @MahDuffeck @DTelenko @YuanZeng3 @alabamaED #corn

[Crop Protection Network @CropNetwork]

Fusarium stalk rot causes shredded pith that may be tan to light pink. Brown streaks may be observed on the lower internodes.

The fungi overwinter in corn residue, other dead plant residue, and in corn seed.

Resistance to Fusarium stalk rot is available. Rotation and tillage will reduce inoculum.

@DTelenko @badgercropdoc @MandyBish1 @MartinChilvers1 @maddishires @alisonrISU @TamraJacksonZ @baldpathologist @NationalCorn #corn #harvest26

[Crop Protection Network @CropNetwork]

Regularly monitor bins for potential issues.

If grain becomes wet, use fans to increase airflow and reduce grain moisture levels, preventing fungal growth.

If mycotoxin-producing fungi begin to grow in high-moisture corn, mycotoxin level in stored grain can increase. Be sure to wear proper personal protection equipment, if necessary, for examining grain bins.

Read more at https://t.co/Oif6N2FGo2.

From Extension. @travisfaske @baldpathologist @MartinChilvers1 @ppp_trey @badgercropdoc @AlbertTenuta @cropdoc08 @MandyBish1 @MahDuffeck @maddishires @DTelenko

#corn #grain @NationalCorn @TamraJacksonZ @alisonrISU @alabamaED

[Nebraska CropWatch @UNL_CropWatch]

Abundant rainfall has already delayed #harvest in Nebraska & now #corn growers are facing grain quality concerns. Learn what to watch for & how to manage affected grain: https://t.co/mmjBOrwhAt

#NebExt #NebraskaAg #AgTwitter #CropProduction #Farming #Ag #Harvest26 #CropDisease

[Tamra Jackson-Ziems @TamraJacksonZ]

Germination (vivipary) and ear rot development in some fields. See this week's issue @UNL_CropWatch FMI
Late Season Rainfall Raises Corn Grain Quality Concerns at Harvest | CropWatch | Nebraska https://t.co/q4ZC3iS9cI
@AmyTimmerman2 @UNLPlantClinic #scoutnebraska

[Tamra Jackson-Ziems @TamraJacksonZ]

@phytopoetry Good one!

[Tamra Jackson-Ziems @TamraJacksonZ]

@cattleNcrops83 Me too. 😬 There's a lot of stalk rot out there. - PS this is my new (and real) account

[Crop Protection Network @CropNetwork]

Many diseases survive in crop residue like tar spot, northern corn leaf blight, red crown rot, sudden death syndrome, and Fusarium head blight.

Knowing the risks for your field can help inform future management decisions, like choosing disease-resistant hybrids or varieties for next season.

@alisonrISU @baldpathologist @DTelenko @badgercropdoc @MartinChilvers1 @DylanMangel @BisonBeanDoc #corn #soybean #wheat

[Crop Protection Network @CropNetwork]

Foliar Fungicide Efficacy and Environmental Influences in Crop Disease Management.

This new @PlantDiseaseJ article is published at https://t.co/txjPJmdFB9.

From @MorganGoodnight @mizuno_monica @NabinKDangal @DTelenko @dsmuelle +others.

[Tamra Jackson-Ziems @TamraJacksonZ]

@ModernScholar2 I need a better knife for rating crown rot trials. You made that look too easy. 🤪

[Tamra Jackson-Ziems @TamraJacksonZ]

They're watching 👀 emerging disease Phaeosphaeria leaf spot on corn in several states in the eastern Corn Belt. 😬🌽Deja vu. There's something else on the horizon in the east and it looks like Paraquat damage. @UNLPlantClinic @UNL_CropWatch @UNL_ScoutNEB

[Martin Chilvers @MartinChilvers1]

Emerging leaf spot disease of corn under investigation in Michigan. Please keep an eye open for this leaf spot in corn and send a sample in to help with diagnosis @MSUDiagnostics @MSUExtension @MSU_PSM @MI_Corn @CropNetwork https://t.co/vVzl4lRYKU

[Tamra Jackson-Ziems @TamraJacksonZ]

Tar spot moved further west n recent weeks of cooler, wet weather & has been confirmed n several new counties n southwest Nebraska bordering CO. Send samples to @UNLPlantClinic @UNL_CropWatch @UNLExtension
@NECornBoard @CropNetwork

Crop Protection Network https://t.co/MFJ2P8r0iO