Crop News
- What's that Green Carpet Under the Harvested Crop? -
- Precision Spraying Technology -
- Weeds took Advantage of a Mild Winter -
- Suspected 2,4-D Resistant Waterhemp Population Discovered -
- Keep an Eye out for Asian Copperleaf -
- Dicamba-resistant Waterhemp in Iowa -
- A New Palmer Amaranth Find Underscores Importance of Scouting -
- Watch for Asian Copperleaf this Spring -
- Managing Burcucumber in Corn and Soybean -
- Keep an Eye Out For This Weed -
- Fall Burndown Treatments for Winter Annual Weeds -
- Prioritize Pasture and Non-crop Weed Control! -
- Equisetum: From the Ditch to the Field -
- Managing for 2022 Volunteer Corn Potential -
- Fomesafen Carryover to Corn -
- Spring Control Of Canada Thistle – Now Is The Time! -
- Effective Spring Management of Multiflora Rose -
- Adjusting Weed Management Plans After The Dry Start -
- Preemergence Herbicides, Dry Soils and Rain -
- 2020 Summary of Herbicide Evaluations for Marestail (Horseweed) Control in Soybean -
- Herbicide Programs for Waterhemp Control in Soybean -
- Using Cereal Rye Cover Crop and Narrow-Row Soybean to Manage Herbicide-Resistant Waterhemp -
- Scout Now for Palmer Amaranth -
- Unsolicited seed packages in mail -
- Performance of Preemergence Herbicides on Waterhemp Control in Soybean -
- Preemergence Herbicide Application Timings: Pros and Cons -
- Managing Winter Annual Weeds this Spring -
- Can Weed Seed Production be Reduced with Late-season Herbicide Applications? -
- Scout Now for Palmer Amaranth -
- Weeds in a Wet Year -
- Spring Burndown Treatments for Winter Annual Weeds -
- Achieving Full-season Waterhemp Control in Soybean -
- Harvest Considerations to Reduce Weed Seed Movement -
- Crop Injury Associated with Growth Regulator Herbicides -
- Fomesafen Carryover to Corn -
- Fall Marestail (Horseweed) Management -
- The Oak Tatters Conundrum -
- Evaluating Herbicide Injury on Soybean -
- Preemergence Herbicide Options for Planted Soybean Fields -
- Update on Palmer Amaranth in Conservation Plantings -
- Wind Speed and Herbicide Application -
- Increased Dicamba Use Requires Enhanced Stewardship -
- Clean Combines to Avoid Weed Seed Contamination Across Fields -
- Cover Crop Seed and Palmer Amaranth -
- Managing Palmer Amaranth in Conservation Plantings -
- Palmer Amaranth in Iowa - What We Know -
- Palmer Amaranth Now Identified in at Least Nine Iowa Counties -
- Palmer Amaranth on the Move -
- Learning From This Year's Weed Management Triumphs and Failures -
- Cold Temperatures and Burndown Herbicides -
- Selecting Nozzles for Postemergence Herbicides -
- Spray Volume is Critical for Postemergence Herbicides -
- Breaking Down Resicore - Does It Pass the Test? -
- New Weed Identification Field Guide Provides Updated Weed and Herbicide Resistance Information -
- Integrated Crop Management Conference Provides Latest Research and Technologies to Benefit Your Operation -
- Equisetum: From the Ditch to the Field -
- Waterhemp’s Big, Bad Brother is Back This Spring -
- Don't Miss the State Fair Weed ID Contest -
- Fomesafen Carryover Injury to Corn -
- Palmer Amaranth is Up and Growing -
- Farmer Awareness of Herbicide-resistant Weeds -
- Cereal Rye Cover Crops, Allelopathy and Corn -
- Identifying waterhemp and Palmer amaranth -
- CCA Credit Opportunity – June 27 -
- 2013 Weed Science Field Day -
- Troublesome Palmer Amaranth Expanding Its Range -
- Herbicide Guide (WC94) Now Available on the ISU Weed Science Web Page -
- A History Lesson in Herbicide Resistance -
- Herbicide Resistance Meetings Return -
- It's a No-win Situation: Large Weeds and Hot, Dry Weather -
- Emerged Corn, Herbicides and Nitrogen -
- New Publication Makes Interpreting Manure Nutrient Analyses Easier -
- Managing Glyphosate Failures -
- Spring Control of Multiflora Rose -
- 2011 Weed Science Field Day -
- Early Preplant and Preemergence Applications Not Season Long Control -
- 2011 Crop Minutes Begin This Week -
- Early Preplant Time - Opportunity Lost! -
- Stewardship, Yields, Money and Resistance -
- Use Facts to Make Glyphosate and Glyphosate Resistant Crop Decisions -
- Waterhemp Wins Again -
- Spread of Glyphosate Resistant Weeds -
- Iowa State Research Farm Reports Available to Public -
- How Much Yield Have You Lost? -
- It's Time to Scout for Winter Annuals -
- Weekly Crop and Weather Report - Sept. 28 -
- Degree Days - Cool July With Good Crop Conditions -
- Late-Season Herbicide Applications in Soybean -
- Corn: Uneven Early-Season Growth Can Mean Uneven Tasseling -
- June 29 Iowa Crop & Weather Report -
- Study Results Released - Weed Control in Roundup Ready® Cropping Systems -
- June 15 Crop and Weather Report -
- May 18 Crop and Weather Report -
- Drift Management Considerations -
- May 11 Crop and Weather Report -
- Planting Restrictions Following 2,4-D Applications -
- Weed Science Field Book Available -
- Beware of a Dangerous Invasive Weed -- Updated -
Encyclopedia Article
- Weed Control in Pastures -
- Field pennycress -
- Weed Identification Fact Sheets -
- Wild four-o-clock -
- Wild violet (Common blue violet) -
- Puncturevine -
- Blackseed and broadleaf plantain -
- Waterhemp -
- Common sunflower -
- Fall panicum -
- Shepherdspurse -
- Wild parsnip -
- Wild carrot -
- Redroot pigweed -
- Poison ivy -
- Woolly cupgrass -
- Shattercane -
- Downy brome -
- Scouring rush -
- Giant foxtail -
- Jimsonweed -
- Wild four-o' clock -
- Eastern black nightshade -
- Curly dock -
- Yellow woodsorrel -
- Venice mallow -
- Green foxtail -
- Goosegrass -
- Garlic mustard -
- Foxtail barley -
- Field bindweed -
- Prostrate spurge -
- Yellow nutsedge -
- Honeyvine milkweed -
- Hairy galinsoga -
- Giant ragweed -
- Asiatic dayflower -
- Dodder -
- Prickly lettuce -
- Japanese knotweed -
- Motherwort -
- Common and cutleaf teasel -
- Common pokeweed -
- Yellow foxtail -
- Ground ivy (Creeping Charlie) -
- Multiflora rose -
- Kochia -
- Palmer amaranth -
- Russian thistle -
- Witchgrass -
- Velvetleaf -
- Smilax (greenbriar) -
- Spiny sowthistle -
- Sericea lespedeza -
- Nimblewill -
- Quackgrass -
- Poison hemlock -
- Musk thistle -
- Leafy spurge -
- Large crabgrass -
- Ivyleaf morningglory -
- Hemp dogbane -
- Hedge bindweed -
- Horseweed (marestail) -
- Buckhorn plantain -
- Black medic -
- Barnyardgrass -
- Burcucumber -
- Bull thistle -
- Bush honeysuckle -
- Canada thistle -
- Carpetweed -
- Common buckthorn -
- Catchweed bedstraw -
- Common chickweed -
- Common burdock -
- Common cocklebur -
- Common dandelion -
- Common lambsquarters -
- Common mallow -
- Common milkweed -
- Common mullein -
- Horsenettle -
- Common ragweed -
- Field horsetail -
- Virginia creeper -
- Prostrate knotweed -
- Pennsylvania smartweed -
- Wild buckwheat -
- Buffalobur -
- Prickly sida -
- Henbit -
- Palmer amaranth: ID, biology and management -
- Still don’t think you need integrated weed management? -
- Those who cannot remember the past... -
- Perspectives on herbicide resistance -
- Effectiveness of Using Multiple Sites of Action To Manage Resistance -
- Group 4 (Growth regulator herbicides) Resistance in Weeds -
- Is there such a thing as a Superweed? -
- Why in the World is Enlist Corn Resistant to the Fop Herbicides? -
- Are Roundup Ready weeds in your future? -
- Glyphosate - A Review -
- Point - Counterpoint -
- Resolved isomers explained -
- Absorption of Soil-Applied Herbicides -
- Herbicide Residues in Soybean Following Drift -
- Soybean response to sublethal doses of 2,4-D and dicamba -
- Absorption of foliar-applied herbicides -
- Role of spray adjuvants with postemergence herbicides -
- Effect of carrier pH on Accent activity -
- Effect of frost on pasture weed control -
- Apply When Actively Growing? -
- Two Applications are Better than One -
- Weed emergence patterns -
- Influence of preharvest herbicide applications on seed viability -
- Spatial weed distribution: Can it be used to improve weed management -
- Adaptation in Weeds - Dandelion -
- Multiflora Rose and Rose Rosette Disease -
- Seed production following mowing in a summer annual -
- A brief history of Canada thistle in Iowa -
- Biennial thistles of Iowa -
- White thistles invade Iowa -
- Equisetum: Biology and Management -
- Fate of weed seeds in the soil -
- Giant ragweed emergence patterns -
- Weed seed predation in agricultural fields -
- Will a cereal rye cover crop suppress your weeds? -
- Can total postemerge programs provide optimal yield? -
- Why two if one will do? -
- Influence of Corn on Waterhemp Growth -
- Managing weeds to protect crop yields -
- Non-competitive effects of weeds on corn -
- Iowa's Noxious Weed Law: Chapter 317 -
- Impact of Early-Season Weed Competition On Corn Nitrogen Needs -
- Weed watch: Wild parsnip and poison hemlock -
- The importance of an even start -
- Status and concerns for glyphosate resistance -
- Critical periods of competition in corn -
- Early-season weed competition -
ICM Blog Post
- Drone-based Weed Mapping for Targeted Spraying -
- Benefits of relay cropping soybean with winter barley and winter cereal rye on early-season weed infestation -
- Are your weeds declaring “I will survive!”? -
- Starting with Drone Technology on Your Farm -
- No Weed Science Field Day Scheduled for 2024 -
- Pristine beans or good weed control, take your pick -
- So your crop emerged before it got a herbicide -
- Weed Control in Pastures: A Window of Opportunity -
- Herbicide Carryover This Spring -
- Purple weeds and other early-season weeds in untilled fields -
- Water Quality and Pesticide Performance -
- Considerations when shifting from Rural Water to a private well -
- Register Now for the Integrated Crop Management Conference! -
- PIDC Dos and Don'ts - Field Crops Edition -
- Spring Management of Multiflora Rose -
- Look before you leap: Cautions for delayed preemergence applications in soybean -
- Considerations for Burndown Herbicide Applications this Spring -
- Take Control of Your Weedy Pastures This Spring -
- New cut-off date for over-the-top dicamba use in Iowa for 2023 -
- Overcoming Herbicide Resistant Weed Pressure -
- Don’t Let the Pigweeds Produce Seed -
- Soybean Cupping 2022: Again in Iowa -
- Iowa Soil Health Workshop Planned for August 4th -
- Show Off Your Skills at the Iowa State Fair Weed Identification Contest -
- Pay attention to crop size restrictions on herbicide labels! -
- 2022 ISU Weed Science Field Day is on July 14 -
- In the Mad Rush, Don't Forget Your Herbicide! -
- Glyphosate math -
- Dicamba Updates for 2022 in Iowa -
- Crop Scouting Resources from the Crop Protection Network -
- Coping with Herbicide Shortages in 2022: Adding More Tools in the Toolbox -
- Weed Control Recommendations for 2022: Coping with Herbicide Shortages -
- 2021 Palmer amaranth Tour: Old Habits Die Hard -
- I See Dead Plants Podcast now available from ISU Integrated Pest Management -
- Soybean cupping 2021: Iowa Update -
- Considerations for Herbicide Applications under Hot Dry Conditions -
- Palmer Amaranth in Iowa: Past, Present and Future -
- Identifying weeds with frilly or lacy leaves this spring -
- Virtual crop scouting school now available from CPN -
- Considerations for Spring Burndown Programs for Weed Control -
- Expectations for Volunteer Corn This Spring -
- A Study of Herbicide Drift in the North Central US: Drift Damage and Grower Responses -
- Expert tips for preplant control of volunteer corn prior to corn -
- Will a dicamba-resistant waterhemp be resistant to 2,4-D (and vice versa)? -
- What’s New for Weed Control in Corn and Soybean in 2021 -
- 2021 Iowa Herbicide Guide now available -
- Metabolic resistance in Palmer amaranth -
- New crop scouting web book available from the Crop Protection Network -
- Register to attend an Ag Chem Dealer Update meeting! -
- Time to Finish Up Fall Weed Management! -
- Use of dicamba on dicamba-resistant soybean -
- How much corn seed has germinated in Derecho damaged fields? -
- VIDEO: Management of Volunteer Corn -
- Crop Protection Network (CPN) Needs Your Input! -
- 2020 Western Iowa Palmer Amaranth Tour -
- Management of Volunteer Corn in Fields Affected from Derecho -
- An Open Letter to the EPA -
- What’s up With Waterhemp? -
- Dicamba 2020: What went wrong in Iowa? -
- Dicamba: What does the research say? -
- Identifying Common Herbicide Symptoms in Soybean -
- Read Your Pesticide Labels: Temperature Inversions -
- Weed Suppression With Cover Crops: It's All About Biomass -
- Managing Herbicide-Resistant Waterhemp in Dicamba-Resistant Soybean -
- Herbicide Carryover Concerns for 2020 -
- Read Your Pesticide Labels: Dicamba Edition -
- Read your pesticide labels: Endangered species edition -
- Field Scouting Basics Workshop Online -
- Give the people what they want: Another entry into the HAHOS -
- To spray or not to spray? -
- What’s Happening To My PRE herbicide on the Soil Surface? -
- Join us April 6-10 for the "Essential Row Crop Management" Webinar Series! -
- Additional resources made available amid event cancellations -
- Register now for our Field Crop Scout School -
- It's Back: The Herbicide Ad Hall of Shame -
- A look at changes in common names of Iowa weeds -
- Now Available: Crop Scout Essentials Pest Management Field Guides Bundle -
- Crop Protection Network releases new series: Pest Research Updates -
- Waterhemp: A 'friendly' native evolves into the Cornbelt’s worst weed problem. -
- 2019 Western Iowa Palmer Amaranth Tour -
- What is a realistic goal for weed management? -
- Q and A: Why Doesn't Iowa Do Something About Wild Parsnip? -
- Test Your Weed Identification Skills at the Iowa State Fair -
- Another bumper year for wild parsnip -
- Attend the Weed Science Field Day on June 27 -
- UAN and herbicide applications on emerged corn -
- iNaturalist: Confessions of a skeptic -
- The Weed of the Spring -
- Things to keep in mind about Dicamba going into #Plant2019 -
- Metabolism-based resistance - Why the concern? -
- Palmer amaranth resistance to 2,4-D and dicamba confirmed in Kansas -
- Know your invasives for Invasive Species Awareness Week -
- Herbicide program development: Long-term planning -
- Harvest Weed Seed Control -
- Herbicide program development: Herbicide rate calculations -
- Herbicide program development: Using effective herbicide groups -
- Herbicide program development: Using multiple sites of action -
- New dicamba restrictions -
- 2018 Labor Day Palmer amaranth tour -
- Mile-a-minute weed found in Iowa -
- May Maize Maladies -
- 29th Staniforth Memorial Lecture is available for viewing -
- Pest resistance management from hospitals to farm fields -
- Interactive Crop Scout Training Available Online -
- Dicamba: Past, Present, and Future -
- A historical perspective on dicamba -
- Factors influencing dicamba volatility -
- A good time to scout for Palmer amaranth -
- The State Fair Weed ID Contest is Approaching -
- What crop diseases are you seeing? We want to know! -
- Thoughts on the Dicamba Dilemma -
- Get involved with the Integrated Pest Information Platform for Education and Extension -
- Weedy Amaranthus Quiz II -
- Biological control of musk thistle -
- Milestone vs 2,4-D for Palmer amaranth control in CRP -
- VIDEO: Managing Weeds, Insects and Diseases in Iowa Fields -
- Top 10 Strategies for Managing Herbicide Resistance -
- The cost of herbicide resistance -
- Online, Interactive Textbook Provides Student Learning and Professional Development -
- Those who cannot remember the past are condemned to repeat it -
- Bundle deals at the ISU Extension Store! -
- Oh, when will they ever learn? -
- Is 80% of Iowa waterhemp really resistant to Group 14 herbicides? -
- Field Crop Scout School offered March 25 -
- The Iowa Noxious Weed Law: If I were king -
- Not all drift is created equal -
- Deciphering the new 2,4-D and dicamba labels -
- Who's laughing now? -
- Acalypha australis - A plant truly out of place -
- White snakeroot - A toxic plant of Iowa -
- Final Labor Day Palmer amaranth tour summary -
- Palmer amaranth - A highly variable weed -
- New Palmer amaranth identification bulletin available -
- Overview of 2016 ISU Crop Scouting Competition and Winners -
- Iowa Code 317.1 – Time for a Change* -
- Another one bites the dust, or, City of Ames beats Japanese knotweed -
- I been walkin' the beans -
- Mowing requires management to be effective -
- Double check labels, scout weed size for maximum weed control -
- Palmer amaranth update in eastern Iowa -
- On a weed and a prayer -
- Fields (and roadsides) of gold -
- How do I get rid of Equisetum? -
- Sprayer speed affects drift potential -
- What's that purple weed? -
- What you add to the tank can affect cover crop burndown success -
- Planting, residue management, herbicide recommendations for start of plant 2016 -
- Palmer amaranth update -
- The weeds are coming! -
- Herbicide program development: Long-term planning -
- Herbicide program development: Herbicide rate calculations -
- Herbicide program development: Using effective herbicide groups -
- Herbicide program development: Using multiple sites of action -
- The creation of monarch butterfly habitat -
- ISU Weed Science Program: 2015 Weed Control Results now available -
- Herbicide options for grazing cover crops -
- White Snakeroot - Fun Weed Fact for the Week -
- The 2015 Western Iowa Palmer Amaranth Tour -
- Wild parsnip toxicity - Today's fun fact -
- resistant or just hard to manage? -
- Choose adjuvants wisely -
- Is that a Palmer amaranth or waterhemp? -
