Extension Field Crop Pathologist, Purdue University. Opinions here may not reflect official views of Purdue University
West Lafayette, IN
Joined August 2012
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Please see below and help us quantify recent rainfall and flooding impacts on crops.
🚨🚨 Calling all Indiana Farmers, Consultants, and Advisors. Please help us out and take a minute to fill out this short survey to help quantify recent rainfall and flooding impacts on crops in the state. Please share also.
@PurdueAg @PurdueExtension
extension.entm.purdue.edu/ne…
Darcy Telenko retweeted
Anthracnose is likely the most prevalent stalk rot in the eastern United States. Affected plants have shredded pith and die prematurely. Anthracnose also causes a distinctive blackening of the stalk rind.
The fungus overwinters in corn residue and infects plants through the roots or by spores that splash onto the stalk or are carried by insects that may introduce them into feeding wounds. The disease usually does not appear until late in the season and occurs more severely where corn follows corn, especially in reduced tillage.
Resistance to anthracnose is available in some hybrids. If a hybrid is resistant to stalk rot, it is not necessarily resistant to the leaf blight phase. Rotation and tillage will reduce inoculum.
@alisonrISU @MartinChilvers1 @badgercropdoc @TamraJacksonZ @alabamaED @MandyBish1 @DTelenko #corn @NationalCorn @maddishires @baldpathologist @travisfaske
ALT Split corn stalk showing dark fungal growth on the exterior and rotted pith tissue inside.
ALT Split corn stalk showing rotted tissue near the node and into the internode.
Darcy Telenko retweeted
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 cropprotectionnetwork.org/pu….
From Extension. @travisfaske @baldpathologist @MartinChilvers1 @ppp_trey @badgercropdoc @AlbertTenuta @cropdoc08 @MandyBish1 @MahDuffeck @maddishires @DTelenko
#corn #grain @NationalCorn @TamraJacksonZ @alisonrISU @alabamaED
ALT Row of four grain bins near a field.
Darcy Telenko retweeted
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
ALT Illustration of Fusarium head blight disease cycle showing overwintering, infection, and further disease development.
Darcy Telenko retweeted
Check out some of the exciting soybean pathology research that we have been working on over the past few years across the North Central region!
soybeanresearchinfo.com/rese…
A great collaboration between our teams @dsmuelle, w/ @MorganGoodnight @mizuno_monica @Mariela24fdez
Foliar Fungicide Efficacy and Environmental Influences in Crop Disease Management.
This new @PlantDiseaseJ article is published at apsjournals.apsnet.org/doi/a….
From @MorganGoodnight @mizuno_monica @NabinKDangal @DTelenko @dsmuelle +others.
ALT Infographic showing how various aspects of the environment impact fungicide.
Darcy Telenko retweeted
White #corn leaf spots are an emerging concern. Hear about a new disease discovered by @MSUDiagnostics @MSU_PSM in this #ManagingforProfit with @MartinChilvers1 @CropNetwork @brownfield #agnews brownfieldagnews.com/managin…
Darcy Telenko retweeted
A pathologist team is conducting high intensity fungicide and biological fungicide efficacy trials in 7 states through North Central Soybean Research Program funding. Decision and ROI tools will help farmers with fungicide applications. #SoyCheckoff bit.ly/4jTgREd
Darcy Telenko retweeted
Check out the new @ISDPPodcast episode "The Crimson Crown: Soybean Red Crown Rot Uncovered" from Extension at open.spotify.com/episode/6JJ….
@BorisCamiletti @ILSoybean @FieldAdvisor @DTelenko @MartinChilvers1 #USSoy
ALT Soybean stem with red fungal growth.
Darcy Telenko retweeted
Just published: "Crop protection network and a decade of building infrastructure for collaborative extension" at academic.oup.com/jipm/articl….
@cropdoc08 @badgercropdoc @MartinChilvers1 @dsmuelle @NDSUcerealpath @AlbertTenuta @cropdisease @travisfaske @EntsocAmerica @plantdisease
Darcy Telenko retweeted
Scouting for Soybean Seed Diseases from Extension at doi.org/10.31274/cpn-2019062….
@AlbertTenuta @cropdisease @MartinChilvers1 @febina_m @dsmuelle @badgercropdoc @cropdoc08 +others @maddishires @MandyBish1 @DylanMangel @BisonBeanDoc @baldpathologist @alabamaED @travisfaske @MahDuffeck @DTelenko #harvest26 #soybean #seed #USSoy
ALT Soybean seeds with mold growing on them.
ALT Soybean seeds with purple discoloration.
Darcy Telenko retweeted
Ear rot issues during #harvest26?
It's critical to ID ear rots in field as many of the fungi responsible for ear rots produce mycotoxins, which can harm livestock and humans. Grain contaminated with mycotoxins can be difficult to market and may be docked in price.
For more info, check out An Overview of Ear Rots at cropprotectionnetwork.org/pu….
@alisonrISU @MandyBish1 @MartinChilvers1 @travisfaske @ppp_trey @badgercropdoc @DTelenko @BorisCamiletti @baldpathologist #corn
ALT Corn ear with white mold on kernels.
ALT Corn ear with green mold on kernels and sprouting kernels.
ALT Corn ear with green mold on kernels.
Sharing our research with the Institute of Sciences of Food Production in Bari, Italy to foster international collaborarion to help our corn growers @CNRsocial_ @croptoxcare @INCornFarmers @PurdueAg @PurdueBPP @CropNetwork
Darcy Telenko retweeted
“Cultivar resistance remains the most effective SDS management strategy, with seed treatments providing significant benefits under high disease pressure."
From the @PlantDiseaseJ article "Evaluating the Effectiveness of Integrated Strategies to Manage Sudden Death Syndrome of Soybean: Supplementing SDS-Resistant and -Susceptible Cultivars with Chemical and Biological Seed Treatments" doi.org/10.1094/PDIS-07-25-1… by Madison Kessler @NabinKDangal @MartinChilvers1 @febina_m @badgercropdoc @DTelenko @AlbertTenuta @BisonBeanDoc @dsmuelle @rodrigobonofre +more
@KsSoybean #soybean #SDS #USSoy
Darcy Telenko retweeted
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 @baldpathologist @alabamaED @travisfaske @ppp_trey @cropdoc08 #corn
ALT Illustration of the Fusarium stalk rot disease cycle demonstrating how the fungus overwinters in corn residue, is spread and infects the plant, and develops within the plant.
ALT Split corn stalk showing degraded pith tissue and pink mold.
ALT Three split stalks on a blue background showing pith that has rotted.
Darcy Telenko retweeted
Check out Scouting for Soybean Seed Diseases from Extension at doi.org/10.31274/cpn-2019062….
@AlbertTenuta @cropdisease @MartinChilvers1 @febina_m @dsmuelle @badgercropdoc @cropdoc08 +others @maddishires @MandyBish1 @DylanMangel @BisonBeanDoc @baldpathologist @alabamaED @travisfaske @MahDuffeck @DTelenko #harvest26 #soybean #seed #USSoy
ALT Soybean pod split open to reveal purple discoloration on soybean seeds.
Darcy Telenko retweeted
New #corn disease reported in #Michigan, scouting encouraged in the #GreatLakes. Hear more about its discovery and what to look for in our interview with @MSUEFieldCrops @MSU_PSM @MartinChilvers1 @CropNetwork @brownfield #agnews #TopStory brownfieldagnews.com/news/ne…
Darcy Telenko retweeted
Some ugly stalk rots starting to show up in areas of Indiana. Something to watch out for this fall. Best thing to do is prioritize the fields that have it and get the corn out of the field asap.
@PurdueExtension @PurdueExtension @PurdueAgryExt
Darcy Telenko retweeted
New article on Ear Rot and Mycotoxin Risk and Management in Indiana Corn.
@croptoxcare @INCornFarmers @PurdueExtension @PurdueAg
ag.purdue.edu/news/departmen…
Darcy Telenko retweeted
Corn stalk rots cost farmers $4.2 billion in the past five years.
Test stalk integrity using the pinch test. Prioritize harvest for a field if 10%+ stalks are rotted.
@alisonrISU @DTelenko @MandyBish1 @maddishires @MartinChilvers1 @badgercropdoc @baldpathologist @cropdoc08 #corn @NDSUExtension @travisfaske @ppp_trey
ALT Corn stalk pinched by a hand.
We are keeping out an eye as well here in Indiana. Send samples to our Purdue Plant Pest and Diagnostic Lab.
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 canr.msu.edu/news/emerging-l…
