Content Related to Diseases
Crop Protection Network Resource
- Trichoderma Ear Rot of Corn -
- Tar Spot of Corn -
- Penicillium Ear Rot of Corn -
- Diplodia Ear Rot in Corn -
- Cladosporium Ear Rot of Corn -
- Bacterial Leaf Streak of Corn -
- Aspergillus Ear Rot of Corn -
- Tobacco Streak of Soybean -
- Tobacco Ringspot of Soybean -
- Pod and Stem Blight of Soybean -
- Purple Seed Stain of Soybean -
- Stem Canker of Soybean -
- Soybean Cyst Nematode of Soybean -
- Pythium Root Rot of Soybean -
- Diaporthe (formerly Phomopsis) Seed Decay of Soybean -
- Phytophthora Root and Stem Rot of Soybean -
- Fusarium Wilt and Root Rot of Soybean -
- Charcoal Rot of Soybean -
- Brown Stem Rot of Soybean -
- Phyllosticta Leaf Spot of Soybean -
- Frogeye Leaf Spot of Soybean -
- Downy Mildew of Soybean -
- Cercospora Leaf Blight of Soybean -
- Bean Pod Mottle of Soybean -
- Bacterial Pustule of Soybean -
- Bacterial Blight of Soybean -
- Alfalfa Mosaic -
- Gibberella Ear Rot of Corn -
- Fusarium Ear Rot of Corn -
- Bacterial Stalk Rot of Corn -
- Root Rots of Corn -
- Seed Decay and Seedling Blight of Corn -
- Pythium Stalk Rot of Corn -
- Nematodes that Feed on Corn -
- Diplodia Stalk Rot of Corn -
- Charcoal Rot of Corn -
- Gibberella Stalk Rot of Corn -
- Fusarium Stalk Rot of Corn -
- Stewart's Disease of Corn -
- Southern Rust of Corn -
- Physoderma Brown Spot of Corn -
- Northern Corn Leaf Spot -
- Maize Dwarf Mosaic of Corn -
- Holcus Leaf Spot of Corn -
- Head Smut of Corn -
- Eyespot of Corn -
- Crazy Top of Corn -
- Common Smut of Corn -
- Anthracnose Stalk Rot of Corn -
- Northern Corn Leaf Blight of Corn -
- Goss's Wilt and Leaf Blight of Corn -
- Common Rust of Corn -
- Anthracnose Leaf Blight of Corn -
- Gray Leaf Spot of Corn -
- Soybean Mosaic Virus of Soybean -
- Sudden Death Syndrome (SDS) of Soybean -
- White Mold (Sclerotinia Stem Rot) of Soybean -
- Asian Soybean Rust of Soybean -
- Powdery Mildew of Soybean -
- Septoria Brown Spot of Soybean -
- Anthracnose Stem Blight of Soybean -
Crop News
- SCN-resistant soybeans varieties for 2025 including 200 with Peking resistance -
- Disease Risk in White Mold and Sudden Death Syndrome of Soybean -
- Are Nematodes Causing Stunted, Yellow Corn? -
- Start Looking for SCN Females on Soybean Roots Four Weeks After Planting -
- Seedcorn Maggots Likely Active throughout Iowa -
- Quick Guide to Soybean Varieties for Iowa with Peking SCN Resistance -
- Updated SCN-resistant Soybean Variety List Has More with Peking Resistance than Ever -
- New Data-Based Calculator Estimates Economic Yield Loss from SCN in Individual Fields -
- Fall is Prime Time to Sample Fields for SCN -
- Wondering if plant-parasitic nematodes are the cause of stunted, yellow corn? -
- Dig into Scouting for SCN -
- Alfalfa Weevil Larvae Active in Southern Iowa -
- More soybean varieties with Peking SCN resistance for 2023, but more needed -
- High Reproduction of SCN Populations on PI 88788 Resistance is Frightening -
- Time of the Year to Sample Fields for SCN -
- Sampling Corn Fields to Assess Plant-parasitic Nematodes -
- Go on the Offensive Against Soybean Cyst Nematode -
- Scout for Alfalfa Weevil in Southern Iowa -
- 2021 Summary of Foliar Fungicide Applications on Corn in Iowa -
- Substantial Yield Suppression from SCN Seen in Soybean Varieties with Resistance from PI 88788 in 2021 -
- Soybean Varieties for Iowa in 2022 with SCN Resistance Different from PI 88788 -
- SCN-resistant Soybean Varieties for Iowa in 2022 -
- Fall is the Perfect Time to Collect Soil Samples for SCN -
- SCN in Iowa: A Serious Problem that Warrants Renewed Attention -
- ISU SCN-resistant Soybean Variety Trial Program results for 2020 -
- Soybean varieties with SCN resistance other than PI 88788 -
- Statewide soybean foliar fungicide evaluation in 2020 -
- SCN-resistant Soybean Varieties for Iowa - By the Numbers -
- Scouting for SCN – Time to Get Digging -
- 2019 Soybean Foliar Fungicide Trials Show Decreasing Efficiency in QoI Class -
- Instances of Frogeye Leaf Spot Resistance to QoIs Abundant in Iowa -
- Summary of Foliar Fungicide Applications on Gray Leaf Spot and Yield of Corn in Iowa in 2019 -
- Income in SCN-infested Fields Can Be $200 Per Acre Less With PI 88788 Than With Peking Resistance -
- SCN-resistant Soybean Varieties for 2020 -
- Managing SCN for 2020 Should Begin Now -
- Have Our SCN Sorrows Been Drowned? -
- Submitting Samples to the Plant and Insect Diagnostic Clinic -
- It’s Time to Think About Sampling for Nematodes that Feed on Corn -
- Delayed Planting and Diseases in 2019 -
- What's behind Iowa's 2019 soybean yield gaps? -
- Planting with Seedling Diseases and Low Germination Rates -
- Evaluation of Foliar Fungicides on Soybeans in 2018 -
- Summary of Foliar Fungicide Applications on Corn in Iowa in 2018 -
- 2018 SCN-resistant Variety Trial Results Show Yield Effects and SCN Buildup -
- Should You Use a Fungicidal Seed Treatment on Low-Quality Soybean Seed? -
- Fewer But More Diverse Choices of SCN-resistant Soybean Varieties for Iowa in 2019 -
- Reflecting on SCN in Iowa Through the Years -
- Frogeye Leaf Spot Making an Appearance Across Iowa Soybeans -
- SCN Development in 2018 -
- Identifying, Scouting and Management of Bacterial Leaf Streak -
- Weather Conditions Ripe for Physoderma Brown Spot and Node Rot and Gray Leaf Spot -
- SCN Females Seen on Roots as Early as Ever in 2018 -
- Frogeye Leaf Spot Resistance in Soybean -
- Frogeye Leaf Spot Fungicide Resistance Confirmed in Iowa Soybean -
- Should We be Spraying Fungicides on Corn at V12? -
- Over 1,000 SCN-Resistant Soybean Varieties - All but 29 Have PI 88788 Resistance -
- Know Your SCN Numbers -
- Sampling for Nematodes that Feed on Corn Not Advised in the Fall -
- Is This Bacterial Leaf Streak? -
- Last County in Iowa Found Infested with SCN -
- Performance of SCN-resistant soybean varieties in Iowa in 2016 -
- Reducing the Risk of Corn Seedling Disease, Yield Loss After Cereal Rye Cover Crop -
- What’s the Situation with SCN in Your Fields? -
- More SCN-Resistant Soybean Varieties Than Ever, but Diversity of Resistance is Lacking -
- Tar Spot Confirmed in Corn in Eastern Iowa -
- Bacterial Leaf Streak Confirmed in Iowa -
- SCN Females Now Visible on Soybean Roots -
- 2015 Evaluation of Foliar Fungicides on Corn at Four Iowa Locations -
- Spring Seedling Sampling -
- Don't Forget SCN Sampling on Your List of Spring Chores -
- SCN Resistance Continues to Pay Twice in 2015 -
- Record Number of SCN-Resistant Soybean Varieties Available, More with Peking Resistance -
- Integrated Crop Management Conference Provides Latest Research and Technologies to Benefit Your Operation -
- Enjoy the Beautiful Fall Weather; Go Sampling for SCN -
- Youth Awarded for Crop-Scouting Skills at 2015 Competition -
- Why is all the corn dying? Is anthracnose to blame? -
- A Quality Sample Leads to a Quality Diagnosis -
- Physoderma Brown Spot and Stalk Rot -
- Update on Northern Corn Leaf Blight in Iowa -
- Hail and Fungicide Use on Corn -
- How’s Your SCN Resistance Holding Up? -
- Diseases Showing Up in Iowa Corn -
- Corn Fungicides: To Spray or Not to Spray? -
- Get to the Root of the Problem: An Easy Way to Check for SCN -
- Evaluation of Commercial Seed Treatments on Soybean at Three Locations in Iowa in 2014 -
- More Choices of SCN-Resistant Soybean Varieties for Iowa for 2015 -
- Update on 2014 Crop Quality -
- Cover crops and SCN: What's the connection? -
- Mid-Season Update on Fungicides and Corn Diseases -
- Northern Leaf Blight Prevalent in Iowa -
- Fungicide Thoughts for 2014 Season -
- Managing White Mold in Soybean -
- SCN Females Now Apparent on Infected Soybean Roots -
- Soybean Seedling Disease: What Have We Learned? -
- New `Focus on Soybean' Talk Offers Knowledge, Management Tactics for Battling Soybean Root and Stem Rots -
- New `Focus on Soybean' Talk Offers Management Tactics for Battling Soybean Root and Stem Rots -
- Get the Latest Information on Performance of SCN-resistant Soybeans -
- Sample Fields for Soybean Cyst Nematode -
- Be on the Lookout for Green Stem Syndrome in Soybeans -
- Stalk Breakage and Rot Caused by Physoderma in Iowa -
- Side-hill seeps result in corn emergence problems -
- CCA Credit Opportunity – June 27 -
- Effect of Foliar Fungicides on Corn Yields in Iowa in 2012 -
- UAN and Herbicides on Emerged Corn -
- Evaluation of Foliar Fungicides and Insecticides on Soybean in 2012 -
- Soybean Cyst Nematode Reproduction High in 2012 -
- Hundreds of SCN-resistant Soybean Varieties Available for 2013 -
- Aflatoxin: Testing Corn -
- Aspergillus Ear Rot and Aflatoxin Production -
- Possible Breakdown of SCN Resistance Topic of New Webcast -
- Symptoms of SCN Damage Apparent Early, Yield Loss Likely Great in 2012 -
- New Fungicide Questions Creeping into the Conversation -
- Should you be scouting for Goss's wilt? -
- Insect Activity Update -
- 2011 Evaluation of Fungicide and Insecticide Seed Treatments on Soybean in Iowa -
- Evaluation of Foliar Fungicides Applied On Corn in 2011 -
- Evaluation of Foliar Fungicides and Insecticides on Soybean in 2011 -
- Integrated Crop Management Conference Nov. 30-Dec. 1 -
- Frogeye Leaf Spot Resistance NOT Found in Iowa -
- Frogeye Leaf Spot Resistance NOT Found in Iowa -
- New Publication Makes Interpreting Manure Nutrient Analyses Easier -
- Reduce Risk of Mycotoxin Contamination by Scouting Fields for Ear Rot -
- Survival of the Goss's Wilt Bacterium and Management Implications -
- Crop Minute - Goss's Wilt -
- Will Goss's Wilt be the "Disease of the Year" in 2011 -
- Insecticide and Insecticide-Fungicide Tank Mix Applications in Soybean -
- Don't Stop Now! -
- Begin Scouting for Sudden Death Syndrome in Soybean -
- The Effect of Spraying Fungicides at R1 or R3 on Soybean -
- Corn Leaf Diseases and Soybean Stem Diseases Prevalent Throughout Iowa -
- Goss's Wilt Found in West Central Iowa -
- Post Emergent Damping Off of Corn Prevalent in Some Fields -
- Crop Management Clinic Features 20 Management Topics -
- Start Scouting Beans for Damping Off -
- Fields with Damped Off Soybean Seedlings Required for Research Project -
- More Bean Leaf Beetles Predicted This Summer -
- A 2011 Prediction for Stewart's Disease of Corn -
- Popular Soybean Disease Publication Now Available as E-Book -
- New Soybean Disease Guide Now Available -
- Sudden Death Syndrome-Resistant Soybean Variety List Available -
- Iowa State Research Farm Reports Available to Public -
- Iowa Floods of 2010: A Guide to Handling Damaged or Contaminated Grain -
- Flooded Grain and Other Harvest Issues -
- The 2009 Crop Won't Quit - and Here Comes 2010 -
- Answers to Questions About Soybean Sudden Death Syndrome in Iowa 2010 -
- Common, Weird and Unusual Spots Showing up on Corn -
- Summary: Foliar Fungicide on Soybean in Iowa (2006 - 2009) -
- Summary: Foliar Fungicide on Corn in Iowa (2007 - 2009) -
- Crop Management Clinic Features Over 20 Management Topics -
- Scout for Early Summer Diseases -
- Early Season Diseases Showing Up in Corn and Soybean Fields -
- Crop Minute Week of June 14 -
- 2009 Corn Quality Issues -
- 2009 Corn Quality Issues - Storage Management -
- Update on Hail Damaged Grain -
- Adjusting Hail-damaged Crops for Crop Insurance Reporting -
- Hail Damage - Grain Quality Survey -
- Crop and Weather Report - September 14 -
- Risk of Mycotoxins Associated with Hail Damaged Corn -
- Weekly Crop and Weather Report -
- Managing White Mold at This Stage of Development -
- Crop and Weather Update - August 10 -
- Goss's Wilt and Northern Corn Leaf Blight Showing Up in Iowa -
- Degree Days - Cool July With Good Crop Conditions -
- Eyespot and Gray Leaf Spot Occurring in Corn -
- Corn: Uneven Early-Season Growth Can Mean Uneven Tasseling -
- Signs of Crazy Top in Corn -
- May 11 Crop and Weather Report -
- A 2009 Prediction for Stewart's Disease of Corn -
- Yellow Corn, Wet Soils, and N Loss – Part 4 -
- Corn Quality Issues in 2008 – Field Molds -
- Soybean Top Dieback Shows Up in Iowa Again -
- Preventative vs. Curative Fungicides -
- Is that Common or Southern Rust Showing up in Iowa Fields? -
- Improved Disease Resistance on the Way – One Key to Soybean Improvement -
Encyclopedia Article
- Early season scouting -
- Assess soybean disease risk in spring planting -
- Lodging: mid- to late-season -
- Fungicide Seed Treatment -
- Top dieback in corn: Is anthracnose the cause? -
- Before applying fungicides to corn: Stop! Look! Consider! -
- Potential disease problems in corn following corn -
- Disease management in corn-following-corn fields -
- Consider nematode feeding as cause for poor corn growth -
- Evaluating Spray Equipment for Improved Fungicide Application -
- Needle nematode damage to corn -
ICM Blog Post
- Statewide evaluation of foliar fungicides on corn in Iowa in 2024 -
- Statewide evaluation of foliar fungicides on soybeans in 2024 in Iowa -
- Fall is a Great Time to Collect Soil Samples for SCN -
- Quick Guide to Soybean Varieties with Peking SCN Resistance for Iowa -
- Is it a ‘B’ or a ‘G’? Distinguishing bacterial leaf streak (BLS) from gray leaf spot (GLS). -
- Itches and tasseling corn -
- Starting with Drone Technology on Your Farm -
- Flooded corn fields and what diseases might you expect to see -
- Considerations when shifting from Rural Water to a private well -
- Statewide evaluation of foliar fungicides on soybeans in 2023 in Iowa -
- Register Now for the Integrated Crop Management Conference! -
- NEW Corn and Soybean Field Guide Available Now -
- Why is my corn black? -
- Crop standability an issue this fall -
- Scout now, save later- The importance of season-long scouting -
- Tar spot observed in six counties in Central Iowa -
- PIDC Dos and Don'ts - Field Crops Edition -
- Is a fungicide application to corn at V5 a worthwhile input? -
- 2022 Summary of Foliar Fungicide Applications on Corn in Iowa -
- Eight New Virtual Crop Scout School Webinars from the Crop Protection Network -
- Tar Spot and Fungicide Survey -
- Statewide evaluation of foliar fungicides on soybeans in 2022 -
- The 2022 growing season challenges continue: ear, crown and stalk rots. -
- Should I apply a late season fungicide for tar spot? -
- Tar spot reported in Central Iowa -
- All a twitter about tar spot -
- Cold, wet conditions increase risk of soil-borne diseases -
- Crop Scouting Resources from the Crop Protection Network -
- Statewide Evaluation of Foliar Fungicides on Soybeans in 2021 -
- High SCN population densities from 2021 make beans on beans in 2022 a risky proposition -
- End of season thoughts: stalk rot, ear rot and tar spot -
- Is that really SDS in a dry year? -
- I See Dead Plants Podcast now available from ISU Integrated Pest Management -
- Update on corn diseases and fungicide decisions in Iowa -
- Can a fungicide benefit drought-stressed corn? -
- New Fungicide Web Book from Crop Protection Network -
- Virtual crop scouting school now available from CPN -
- Does planting green into a rye cover crop affect corn growth and yield? -
- Crop Protection Network webinars coming in the spring -
- New crop scouting web book available from the Crop Protection Network -
- Register to attend an Ag Chem Dealer Update meeting! -
- Soybean sudden death syndrome and the 2020 derecho -
- Crop Protection Network (CPN) Needs Your Input! -
- Scout Corn Fields for Stalk Rot -
- Fungicide Use on Storm Damaged Soybean -
- Recorded webinars from Essential Row Crop Management 2 series now available -
- Disease Severity and Insect Defoliation Training Tool Released -
- Fungicide Use on Hail Damaged Corn and Soybean -
- Considerations for fungicide use in soybean -
- Join us July 14, 16, 21, and 23 for the summer Essential Row Crop Management Webinar Series! -
- Bacterial leaf streak prevalent in corn in eastern Iowa -
- Soybean White Mold Thoughts -
- Guidelines for Submitting to the ISU Plant and Insect Diagnostic Clinic -
- Anthracnose leaf blight prevalent in corn fields -
- Field Scouting Basics Workshop Online -
- Early Season Crop Scouting -
- Plant and Insect Diagnostic Clinic update 5/4/2020 -
- Additional resources made available amid event cancellations -
- Plant and Insect Diagnostic Clinic to offer some remote diagnostics -
- Register now for our Field Crop Scout School -
- Now Available: Crop Scout Essentials Pest Management Field Guides Bundle -
- Crop Protection Network releases new series: Pest Research Updates -
- Managing soybean seedling diseases — A Webinar -
- Crop Protection Network launches new disease loss estimate tool -
- ISU Extension Plant Pathologist Mueller to host NC3 Webinar -
- Random thoughts and observations on ear and stalk rots in Iowa -
- Ergot: Be aware when harvesting small grains and grasses -
- Preventative and Curative Fungicides -
- Foliar Fungicide Decisions for Late-Planted Crops -
- Need more CCA CEU's? Visit the Crop Protection Network -
- Thoughts on applying a fungicide at V5 -
- Stand counts imperative following low quality soybean seed -
- Fungicide efficacy tables for corn, soybean and soybean seedling diseases -
- Things to keep in mind ahead of planting for tar spot -
- Know your invasives for Invasive Species Awareness Week -
- New resources for tar spot and soybean seed quality now available! -
- Iowa State University Integrated Pest Management Program Announces New YouTube Channel -
- Pest resistance management from hospitals to farm fields -
- Interactive Crop Scout Training Available Online -
- What’s the real deal with soybean cyst nematodes and cover crops? -
- Sampling for Nematodes on Corn in the Fall is Not Advised -
- Keep an eye open for stalk rots -
- 8 facts about charcoal rot in soybean -
- What crop diseases are you seeing? We want to know! -
- Bacterial Leaf Streak lookalikes -
- Get involved with the Integrated Pest Information Platform for Education and Extension -
- VIDEO: Managing Weeds, Insects and Diseases in Iowa Fields -
- Online, Interactive Textbook Provides Student Learning and Professional Development -
- Bundle deals at the ISU Extension Store! -
- Field Crop Scout School offered March 25 -
- Soybean diseases showing up in Iowa -
- Overview of 2016 ISU Crop Scouting Competition and Winners -
- Anthracnose, in soybeans? -
- Disease imposters -
- Plant and Insect Diagnostic Clinic update 7/7/2016 -
- Plant and Insect Diagnostic Clinic update 6/17/2016 -
- Tweet your corn and soybean diseases from the field this summer -
- Do cold, wet soils increase the risk of soybean seedling disease? -
- Green and purple soybean stems appearing -
- Seeing yellow spots in your soybeans? -