Damon L. Smith
@badgercropdoc.bsky.social
20 followers 17 following 3 posts
University of Wisconsin-Madison Professor and Ext. Field Crops Pathologist (corn, soy, wheat, alfalfa); Affiliate - UW-Madison Data Science Institute
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Reposted by Damon L. Smith
cropnetwork.bsky.social
RESEARCH: 400+ corn foliar fungicide data points from the U.S. & Ontario for applications at V6, VT & a 2-pass program at V6+VT.

RESULT: A single DMI+QoI fungicide at VT was the best chance for a positive ROI.

Article at doi.org/10.31274/cpn...

@badgercropdoc.bsky.social @plantdisease.bsky.social
Tar spot on a corn leaf. Southern rust on a corn leaf. Graph showing probability of recovering the cost of a fungicide at various application costs and corn prices.
badgercropdoc.bsky.social
Time to study up for the 2025 season!
cropnetwork.bsky.social
Fungicide Efficacy Guides. Use the best product when disease risk is high and economic gain likely.

Soy Seedling: doi.org/10.31274/cpn...
Corn Foliar: doi.org/10.31274/cpn...
Soy Foliar: doi.org/10.31274/cpn...
Wheat: doi.org/10.31274/cpn...

@badgercropdoc.bsky.social @alabamaed1.bsky.social
Soybean stem with white mold, sclerotia, and dead tissue. Disease lesions on a corn leaf.
Reposted by Damon L. Smith
cropnetwork.bsky.social
560 million bushels gone. $2.9 billion lost.

These are the estimated losses caused by wheat diseases from 2018 to 2021. Read more in the new @planthealthprog.bsky.social publication at doi.org/10.1094/PHP-....

@badgercropdoc.bsky.social @alabamaed1.bsky.social
#science 🧪 #wheat #disease #IPM
Wheat leaf with rust spores and dead tissue. Illustration of disease cycle of Fusarium head blight.
Reposted by Damon L. Smith
cropnetwork.bsky.social
Watch new CPN TV episodes at cropprotectionnetwork.org/cpn_tv.

Corn stunt, soybean red crown rot, white mold, corn crown rot, ergot +more from Extension scientists. 🧪

@mahduffeck.bsky.social @badgercropdoc.bsky.social @ilextension.bsky.social @alabamaed1.bsky.social @asa-cssa-sssa.bsky.social
Split corn stalk base showing rot inside. Image by Tamra Jackson-Ziems. Corn showing stunting and reddish leaves. White mold and black fungal structures growing on diseased soybean stem.
Reposted by Damon L. Smith
cropnetwork.bsky.social
In 2024, disease reduced corn yield by an estimated 6% in the US, causing an estimated loss of 948.9 million bushels.

Find out more in the NEW pub at cropprotectionnetwork.org/publications....

From Extension. @alabamaed1.bsky.social @pacropdoc.bsky.social @badgercropdoc.bsky.social +others!
Treemap showing proportion of losses caused the most important corn diseases in 2024. Three different corn diseases on a corn leaf. Severe southern rust on a corn leaf.
Reposted by Damon L. Smith
cropnetwork.bsky.social
Multiple options are available to minimize northern corn leaf blight. One of the most effective is planting less-susceptible hybrids.

More management info in the Northern Corn Leaf Blight Overview at cropprotectionnetwork.org/publications....

From Extension. @badgercropdoc.bsky.social +others!
Dead corn leaves on corn plants in rows. This was caused by a fungal disease known as northern corn leaf blight. Dead spots on a corn leaf. This was caused by a fungal disease known as northern corn leaf blight.