Darcy Telenko

Biopesticides for Crop Disease Management. Check out the web book at cropprotectionnetwork.org/web-books/biop…. From Extension's @MartinChilvers1 @travisfaske @NDSUcerealpath @ISU_IPM @dsmuelle @DTelenko @AlbertTenuta @cropdoc08. #corn #soybean @ARCrops @ArkAgResearch @ISUExtension @PurdueAgryExt @NDSUExtension @MSUEFieldCrops @UKAgriculture

Download and print the corn foliar disease illustrated poster at cropprotectionnetwork.org/publications/c…. Poster size is 24x36. @NationalCorn @NeCGA @MississippiCorn @kscorn @ilcorn @iowa_corn @MississippiCorn @mncorn @sdcorn @NDCornGrowers @alisonrISU @DTelenko @alabamaED @MartinChilvers1 @ppp_trey @MandyBish1 @maddishires @badgercropdoc @baldpathologist #corn

Red Crown Rot: Understanding Its Impact and How to Manage It from Extension at youtu.be/_xvEv5_AsVw. @DTelenko @BorisCamiletti @cropdisease @UKAgriculture @PurdueExtension @PurdueAgryExt @PurdueAg @ILextension @MandyBish1 @ppp_trey @ILSoybean @INSoybean @kysoybean #soybean #USSoy

Full steam ahead planting at Pinney PAC, both soybean and corn research trials in the ground today @AgResearchPU @PurdueBPP

🔎Did you know that the PU DTC offers 🚜field scout training for early career agronomist and interns? With two training dates in '26 🌽(5/28 or 6/2), PU's specialists will cover diagnostics, diseases, pest and weed ID + crop development. Register today: cvent.me/PyermO

Crop loss calculator updated with latest data at cropprotectionnetwork.org/yield-loss-cal… In 2025, farmers in the U.S. and Canada experienced estimated losses of: ✅ $5.3 billion from corn diseases ✅ $2.2 billion from corn insect pests ✅ $996 million from wheat diseases ✅ $211 million from cotton diseases ✅ $2.3 billions from soybean diseases @travisfaske @DominicDReisig @justinmcmechan @bick_emily @badgerbean @AlbertTenuta @Jocelynlsmith @KelseyFAndersen @baldpathologist @alabamaED @MPlumblee @MandyBish1 @badgercropdoc @MartinChilvers1 @ppp_trey @DTelenko @BisonBeanDoc @DylanMangel @febina_m @dsmuelle @BorisCamiletti @YuanZeng3 @OhBuggers @NationalCorn @TheCottonBoard @kmbiss @USWBSI #corn #soybean #wheat #cotton

Soybean seedling disease overview from Extension at cropprotectionnetwork.org/publications/a… @cropdoc08 @dsmuelle @MartinChilvers1 @AlbertTenuta +more @baldpathologist @maddishires @MandyBish1 @MahDuffeck @ppp_trey @alisonrISU @DTelenko @DylanMangel @BisonBeanDoc @alabamaED #IPM #agtwitter #USSoy

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 appears as yellowing and wilting; seedlings soon collapse leaving only dead leaves above the soil. Nodal roots may show the same decay symptoms as seminal roots and the mesocotyl. If the nodal root system escapes decay, the plant will survive; it may be stunted or recover fully. Favored by cool, wet soils, these diseases are more common in low-lying or poorly drained areas or in fields planted too early in spring. Ask local Extension for more information. @alisonrISU @cropdoc08 @alabamaED @ppp_trey @travisfaske @DTelenko @MandyBish1 @tjcksn @MPlumblee @dsmuelle @YuanZeng3 @baldpathologist @bobkemerait @badgercropdoc @MartinChilvers1 @maddishires @NationalCorn @kscorn @MississippiCorn #plant26 #corn #agx #seeds #farming

Fusarium head blight is one of the most significant diseases affecting small grain production, with epidemics occurring at higher frequencies and over a larger area than in the past. Yield losses can exceed 50% if conditions favor disease; however, it poses a more significant threat to grain quality and animal and human health. For management and ID info, check out Extension's cropprotectionnetwork.org/publications/a…. @NDSUExtension @NDAgExpStation @KYGrainCropsIPM @badgercropdoc @AlbertTenuta @cropdoc08 @baldpathologist @MartinChilvers1 @travisfaske @DTelenko @MahDuffeck @MandyBish1 @maddishires @ppp_trey @USWBSI @OSUwheatdisease @KSUWheatDisease @SaskWheat #wheat #scab #FHB #agx

Disease reduced corn yield by nearly 1.3 billion bushels worth more than $5.2 billion USD in 2025. Southern rust caused the greatest losses, followed by tar spot and northern corn leaf blight. Read the whole article at cropprotectionnetwork.org/publications/c…. From @alabamaED @travisfaske @bobkemerait @BorisCamiletti @DTelenko @alisonrISU @dsmuelle @OnofreLab @cropdoc08 @PatePlantSci @ppp_trey @MartinChilvers1 @baldpathologist @MandyBish1 @tjcksn @DaisyHAhumada @NDSUcerealpath @MahDuffeck @AlbertTenuta @PACropDoc @MPlumblee @maddishires @YuanZeng3 @badgercropdoc +others. #corn #agriculture #farming #agx @NationalCorn

"Most fungicides resulted in greater breakeven probabilities with increasing disease severity. The results emphasize that fungicide applications occurring at VT/R1 and when disease severity exceeds 5% are more likely to result in a positive economic gain." From the @phytofrontiers's article at doi.org/10.1094/PHYTOF…. By @NabinKDangal @badgercropdoc @baldpathologist @MandyBish1 @MartinChilvers1 @travisfaske @NDSUcerealpath @AG__McCoy @dsmuelle @rodrigobonofre @ppp_trey @alisonrISU @alabamaED @DTelenko @AlbertTenuta @cropdoc08 +others. #corn #fungicide #ROI @NationalCorn

The Severity Estimation Tool is an interactive, web-based resource to improve assessment of disease severity and insect defoliation in corn and soybean. Build assessment skills for insect injury and making insecticide decisions or train field crews to accurately assess research plots. Access this resource at cropprotectionnetwork.org/severity-estim…. @badgercropdoc @alabamaED @baldpathologist @DTelenko @DylanMangel @BisonBeanDoc @DominicDReisig @bick_emily @alisonrISU @SpurlockLab @Jocelynlsmith @thrashnbugs #agx #corn #soybean #scout26

Setting up our first fungicide trials for our @USWBSI project in Southwest PAC in Vincennes IN. Low disease risk bases on the model, but crop flowering (Feekes 10.5.1) w/ @MorganGoodnight @Mariela24fdez

🚜Looking for ways to 👩‍🏫train new agronomic hires or interns this growing season? Our field scout training workshop offers hands-on crop diagnostics at our Purdue DTC center. Register today: cvent.me/PyermO @PurdueExtension @PurdueCorn @PurdueSoybean @DTelenko @PUweeds

2026 planting has started!

Congratulations @ivismirandaa for successfully defending your MS!!! @PurdueBPP

In our latest episode, the guys chat with @purduecorn about how to increase future corn yields, without losing sight of the fundamentals that matter the most. Tune in 🎧 bit.ly/4e2BGKt

Watch Calculating Fungicide ROI for Soybean White Mold from Extension at youtu.be/64n6l7-BYns. @BisonBeanDoc @OSUPlantPath @badgercropdoc @NDSoybean @NDSoyGrowers @NDAgExpStation @Ohiosoycouncil @WISoyCheckoff #soybean #ROI #grow26 #fungicide #USSoy

Research found no evidence that nitrogen application influences the severity of corn tar spot. Read more at cropprotectionnetwork.org/publications/h…. From @CheckJill & @MartinChilvers1 +others. #corn @NationalCorn @MI_Corn