Maddi Shires (@maddishires) 's Twitter Profile
Maddi Shires

@maddishires

Assistant Professor, Plant Pathology Extension, and Manager of SD Plant Diagnostic Clinic at South Dakota State University

ID: 357874495

calendar_today19-08-2011 01:25:32

1,1K Tweet

247 Followers

402 Following

Crop Protection Network (@cropnetwork) 's Twitter Profile Photo

Corn disease reduced yield by an estimated 6.0% in the US & 3.7% in Ontario. This is 963.4 million bushels. Tar spot, southern rust & northern corn leaf blight caused the greatest losses. Read more at Extension's cropprotectionnetwork.org/publications/c… From Kiersten Wise Daren Mueller Ed Sikora

Corn disease reduced yield by an estimated 6.0% in the US & 3.7% in Ontario. This is 963.4 million bushels.

Tar spot, southern rust & northern corn leaf blight caused the greatest losses. Read more at Extension's cropprotectionnetwork.org/publications/c…

From <a href="/cropdoc08/">Kiersten Wise</a> <a href="/dsmuelle/">Daren Mueller</a> <a href="/alabamaED/">Ed Sikora</a>
USWBSI (@uswbsi) 's Twitter Profile Photo

The USWBSI team working to develop predictive models for FHB has been working for more than 20 years. Initial models were based on 50 observations from 4 states. Today's models include more than 1,200 cases of FHB in more than 20 states. poultryworld.net/specials/forec…

Crop Protection Network (@cropnetwork) 's Twitter Profile Photo

Fungicide Efficacy Guides. Use the best product when disease risk is high and economic gain likely. Corn Foliar: cropprotectionnetwork.org/publications/f… Soy Foliar: cropprotectionnetwork.org/publications/f… Wheat Foliar: cropprotectionnetwork.org/publications/f… Soy Seedling: cropprotectionnetwork.org/publications/f… Darcy Telenko Ed Sikora

Fungicide Efficacy Guides. Use the best product when disease risk is high and economic gain likely.

Corn Foliar: cropprotectionnetwork.org/publications/f… 
Soy Foliar: cropprotectionnetwork.org/publications/f…
Wheat Foliar: cropprotectionnetwork.org/publications/f…
Soy Seedling: cropprotectionnetwork.org/publications/f…

<a href="/DTelenko/">Darcy Telenko</a> <a href="/alabamaED/">Ed Sikora</a>
Crop Protection Network (@cropnetwork) 's Twitter Profile Photo

Many pathogens cause corn seed decay and seedling blight. The first symptom may be an area of the field with poor or no stand. Decayed seeds are very soft and may be covered with fuzzy fungal growth; seeds can be difficult to find if badly rotted. Postemergence damping off

Many pathogens cause corn seed decay and seedling blight. The first symptom may be an area of the field with poor or no stand. 

Decayed seeds are very soft and may be covered with fuzzy fungal growth; seeds can be difficult to find if badly rotted. 

Postemergence damping off
Crop Protection Network (@cropnetwork) 's Twitter Profile Photo

Check out the 2025 corn leafhopper map at cropprotectionnetwork.org/maps/corn-leaf… to see where this insect has been found so far. Corn leafhopper spreads the virus that causes corn stunt, which was an issue for some farmers last growing season. Maíra Duffeck 🌾🍄🦠🔎🔬💻📊👩‍🔬👩🏼‍💻 Ashleigh Faris Rodrigo Onofre

Check out the 2025 corn leafhopper map at cropprotectionnetwork.org/maps/corn-leaf… to see where this insect has been found so far. 

Corn leafhopper spreads the virus that causes corn stunt, which was an issue for some farmers last growing season.

<a href="/MahDuffeck/">Maíra Duffeck 🌾🍄🦠🔎🔬💻📊👩‍🔬👩🏼‍💻</a> <a href="/ashmfaris/">Ashleigh Faris</a> <a href="/rodrigobonofre/">Rodrigo Onofre</a>
Crop Protection Network (@cropnetwork) 's Twitter Profile Photo

Fungicide efficacy for corn, soybean, and wheat from Extension. Use effective products when disease risk is high for best economic results. Corn: doi.org/10.31274/cpn-2… Soybean: doi.org/10.31274/cpn-2… Wheat: doi.org/10.31274/cpn-2… Ed Sikora Maíra Duffeck 🌾🍄🦠🔎🔬💻📊👩‍🔬👩🏼‍💻 Tom Allen

Fungicide efficacy for corn, soybean, and wheat from Extension. Use effective products when disease risk is high for best economic results. 

Corn: doi.org/10.31274/cpn-2…
Soybean: doi.org/10.31274/cpn-2…
Wheat: doi.org/10.31274/cpn-2…

<a href="/alabamaED/">Ed Sikora</a> <a href="/MahDuffeck/">Maíra Duffeck 🌾🍄🦠🔎🔬💻📊👩‍🔬👩🏼‍💻</a> <a href="/baldpathologist/">Tom Allen</a>
Crop Protection Network (@cropnetwork) 's Twitter Profile Photo

Wheat stripe rust starts as small yellow lesions on leaves. Pustules emerge from lesions, each with thousands of spores. Get management info from Extension at cropprotectionnetwork.org/publications/a…. Martin Chilvers Dr. Alyssa Collins Albert Tenuta Andrew Friskop Damon L. Smith Darcy Telenko

Wheat stripe rust starts as small yellow lesions on leaves. Pustules emerge from lesions, each with thousands of spores. 

Get management info from Extension at cropprotectionnetwork.org/publications/a…. 

<a href="/MartinChilvers1/">Martin Chilvers</a> <a href="/PACropDoc/">Dr. Alyssa Collins</a> <a href="/AlbertTenuta/">Albert Tenuta</a> <a href="/NDSUcerealpath/">Andrew Friskop</a> <a href="/badgercropdoc/">Damon L. Smith</a> <a href="/DTelenko/">Darcy Telenko</a>
Crop Protection Network (@cropnetwork) 's Twitter Profile Photo

“Stem canker can cause premature death of soybean in large areas of the field...The greatest impact on yield occurs when plants are infected early during the vegetative stages, and favorable weather conditions persist until later reproductive growth stages...” From the newly

“Stem canker can cause premature death of soybean in large areas of the field...The greatest impact on yield occurs when plants are infected early during the vegetative stages, and favorable weather conditions persist until later reproductive growth stages...”

From the newly
Darcy Telenko (@dtelenko) 's Twitter Profile Photo

Reposting my Extension article from last week and some images of tar spot to help distinguish from other things that mimic it. indianafieldcroppathology.com/tar-spot-what-… Purdue Extension Damon L. Smith Alison Robertson Martin Chilvers Tamra Jackson-Ziems

Reposting my Extension article from last week and some images of tar spot to help distinguish from other things that mimic it. 
indianafieldcroppathology.com/tar-spot-what-…  <a href="/PurdueExtension/">Purdue Extension</a> <a href="/badgercropdoc/">Damon L. Smith</a> <a href="/alisonrISU/">Alison Robertson</a> <a href="/MartinChilvers1/">Martin Chilvers</a> <a href="/tjcksn/">Tamra Jackson-Ziems</a>