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April 2007


(30 Apr)
NCGA Reminds Growers Agrisure RW Hybrids Are Unapproved in Japan, Most Major Markets
National Corn Growers Association
(30 Apr)
Nebraska Crop Watch Newsletter
Univ. of Nebraska.
  • Delayed Corn Planting — Costs and Considerations
  • When Should You Consider a Shorter Season Hybrid?
  • Nebraska Irrigated Corn Averages 184.8 bu/ac in 2006
  • Streamflows Up; More Rain Predicted
  • Freeze-Damaged Wheat Responding to Warmer Temperatures
  • Consider Herbicide Carryover When Recropping After Wheat
  • Weighing your Options for Damaged Wheat
  • Section 18 Exemption Granted for Lumax in Grain Sorghum
  • Water Savings with Residue Management and No-till
  • Models Predict Potential for Alfalfa Weevil Feeding
(30 Apr)
Anticipating the USDA's May Projections of Supply and Use
Darrel Good, Univ. of Illinois
(27 Apr)
Purdue Pest & Crop Newsletter
Purdue Univ.
  • Seedcorn Maggot Potential in Hastily Planted Fields
  • Alfalfa Weevil Management Not So Clear After Freeze Damage
  • Accumulated Heat Units Base 48
  • Black Cutworm Adult Pheromone Trap Report
  • Black Light Trap Catch Report
  • Warm Fall Increases Nitrogen Loss Potential
  • Germination Events in Corn
  • The Emergence Process in Corn
  • Wheat Stem and Head Injury in Southern Indiana
  • Soybean Rust
(27 Apr)
Researchers 'look into' plant cells to increase ethanol yields
Purdue Univ. News
(27 Apr)
Missouri Integrated Pest & Crop Management Newsletter
Univ. of Missouri
  • Troubleshooting Field Crop Problems
  • Two Beneficial Weevils Active on Musk Thistles
  • Foliage Diseases of Winter Wheat and Their Management
  • Possible Flea Beetle Problems in Field Corn?
  • First Intensive Captures of Black Cutworm Moths
  • Foliar Fungicides Labeled for Use on Winter Wheat
  • Insecticides for Black Cutworm Control in Corn - 2007
  • Eastern Tent Caterpillars Possible Threat to Horses
(27 Apr)
the Bulletin:
Pest mgmt & crop developmt information for Illinois
Univ. of Illinois
  • Videos of Short Courses Are Accessible on the Web
  • Illini Farm Report and Other Podcasts Are Available on the Web
  • Armyworm and Black Cutworm Moths Are Being Trapped Throughout the State
  • Effects of Feeding by Alfalfa Weevil Larvae on Freeze-Damaged Alfalfa and Armyworm Larvae on Freeze-Damaged Wheat
  • Some People Are Finding Lots of White Grubs
  • Mustang Max Labeled for Control of Armyworms in Pastures
  • Update on the Occurrence of Glyphosate-Resistant Weeds
  • Using the Fusarium Head Blight Risk Assessment Tool to Help Make Fungicide Application Decisions for Wheat
  • Notes on an Unusual Spring
(26 Apr)
Penn State Field Crop News
Penn. State Univ.
  • Timing of Burndown Herbicide Applications
  • Rye Kill Following Rye Harvested for Silage
  • Final Thoughts on Soybean Plant Populations
  • Nitrogen Tests—Know Before You Grow
  • Nitrogen Fertilizer Through the Planter
(26 Apr)
Michigan Field Crop Team Advisory Alert
Michigan State Univ.
  • Sandhill crane repellent (Avitec) available in 2007
  • Soil-applied residual herbicide benefits in soybeans
  • Soybean seeding rates
  • New crop and pest management soybean hotline
  • Soybean rust and freezing temperatures in the south
  • Soybean rust fungicide update for early 2007
  • Increased Michigan coverage for Fusarium head blight risk assessment tool
  • Management of foliar wheat diseases, Part 2
  • Fungicide efficacy for control of wheat diseases
  • Fertilizer placement
  • How much winter injury did alfalfa receive from recent low temperatures?
(26 Apr)
Iowa Integrated Crop Management Newsletter
Iowa State Univ.
  • Winter annual weeds and SCN: What's the connection?
  • Adjust planters when working in wetter soil
  • UAN and preemergence herbicide applications on emerged corn
  • Alfalfa weevil and the hard freeze
  • Cool, wet spring favors alfalfa foliar diseases
  • Residue removal and potential environmental consequences
  • Seed treatments in soybean: Managing bean leaf beetles
(24 Apr)
Coleoptile Appearance During Emergence
Bob Nielsen, Purdue Univ.
(24 Apr)
The Emergence Process in Corn
Bob Nielsen, Purdue Univ.
(24 Apr)
Visible Indicators of Germination in Corn
Bob Nielsen, Purdue Univ.
(24 Apr)
Germination Events in Corn
Bob Nielsen, Purdue Univ.
(24 Apr)
Requirements for Uniform Germination and Emergence of Corn
Bob Nielsen, Purdue Univ.
(24 Apr)
Ohio C.O.R.N. Newsletter
The Ohio State Univ.
  • Freeze Injury on Forages is Variable Across the State
  • Plant Your Forages Now!
  • Slug Update
  • Alfalfa Weevil and the Recent Cold Snap
  • Adjusting Corn Management Practices for a Late Start
  • Rust Update
  • Common Seedling Diseases Found in Ohio
  • Managing a Dual Crop of Soybeans and Wheat
(23 Apr)
Scientists unlock secret of what makes plants flower
SeedQuest News Section
(23 Apr)
Kentucky Pest News
Univ. of Kentucky.
  • Early-season corn injury during cool wet conditions
  • Risk of planting corn into standing wheat
  • Control of damaged wheat and crop replant options
(23 Apr)
Warm Fall Increases Nitrogen Loss Potential PDF-formatted document
Jim Camberato & Brad Joern, Purdue Univ.
(23 Apr)
Pharmaceutical crops have a mixed outlook in California PDF-formatted document
Michelle Marvier, Santa Clara University
(23 Apr)
Nebraska Crop Watch Newsletter
Univ. of Nebraska.
  • Avoiding Sidewall Compaction at Planting — Don't Plant Too Shallow
  • Tips to Reduce Sidewall Compaction
  • AMS – What Is It Doing In My Tank?
  • AMS Substitutes – What Does University Research Show
  • Evaluating Winter Wheat Post-Freeze
  • Insects to Watch for in Wheat and Alfalfa
  • Post-freeze Change in Plans for Alfalfa
  • Scout Now for Alfalfa Weevil and CloverLeaf Weevil
  • Preparing Pastures to Beat the Drought
  • Comparing Fuel Sources for Irrigation
(21 Apr)
Purdue Pest & Crop Newsletter
Purdue Univ.
  • Protecting Refuge Acres from Rootworm Damage
  • Aphids in Freeze-Damaged Wheat
  • Alfalfa Weevil Growth and DevelopmentMap
  • Black Cutworm Moths Trickle In
  • Nematode Updates 2007: Soybean Cyst Nematode
  • Tips for Staging Corn with Severe Leaf Damage
  • Use Thermal Time to Predict Leaf Stage Development in Corn
  • Determining Corn Leaf Stages
  • Heat Unit Concepts Related to Corn Development
(19 Apr)
Wisconsin Crop Manager Newsletter PDF-formatted document
Univ. of Wisconsin
  • Rootworm Bt Corn and Soil Insecticides – One or the other, but not both
  • Winter Wheat Herbicide Timing
  • Drift-control Adjuvants, Nozzles, and Glyphosate.
  • The Weedometer is Updated!
(19 Apr)
Penn State Field Crop News
Penn. State Univ.
  • Delayed Planting Effects
  • White Grubs in Field Crops
  • Is Brown Root Rot a Problem in Pennsylvania Alfalfa Fields
  • Boom Sprayer Setup & Calibration
  • Tuning Up Your Mower—Conditioner
  • Alfalfa Weevil Update
  • Stay On—Track with a To—Do List
  • Keeping Tabs on Cover Crops
(19 Apr)
Missouri Integrated Pest & Crop Management Newsletter
Univ. of Missouri
  • Finishing off that Damaged Wheat Stand
  • Killing Frost-Damaged Corn - It's Not as Easy as it Sounds
  • Crop Insurance and Freeze Damage to Wheat
  • Alfalfa Weevil Populations After the Freeze
  • Fate of wheat crop may take until week's end; corn, too, may have been injured by frost
(19 Apr)
the Bulletin:
Pest mgmt & crop developmt information for Illinois
Univ. of Illinois
  • Planting Corn Following Wheat: Wireworms May Present Challenges in Some Fields
  • Effects of Cold Temperatures on Some of Our Early-Season Pests (Alfalfa Weevil, Black Cutworm, Subterranean Insects)
  • More Captures of Black Cutworm Moths
  • Timing Is Critical
  • Section 18 Emergency Exemptions Approved for Folicur and Orius Fungicides on Wheat in Illinois
  • Epilogue on the April Freeze: Tough Decisions Remain
  • Dealing with the Delayed Start to Corn Planting
(17 Apr)
Ohio C.O.R.N. Newsletter
The Ohio State Univ.
  • Killing Failed Wheat Stands to Plant Corn or Soybeans
  • Control of Annual Ryegrass
  • Spring Nitrogen Applications to Winter Wheat and Tissue Burn
  • Frost Injury to Alfalfa: Issues and Concerns
  • Stand Establishment Problems in Late Summer Seeded Alfalfa
  • Boosting Forage Production After Winter Damaged Alfalfa
  • Wheat Scab Risk Prediction 2007
  • Wheat Damage and Yield Potential
(16 Apr)
Tips for Staging Corn with Severe Leaf Damage
Bob Nielsen, Purdue Univ.
(16 Apr)
Use Thermal Time to Predict Leaf Stage Development in Corn
Bob Nielsen, Purdue Univ.
(16 Apr)
Determining Corn Leaf Stages
Bob Nielsen, Purdue Univ.
(16 Apr)
Heat Unit Concepts Related to Corn Development
Bob Nielsen, Purdue Univ.
(16 Apr)
Soybean Comsumption Slows
Darrel Good, Univ. of Illinois
(16 Apr)
Nebraska Crop Watch Newsletter
Univ. of Nebraska.
  • Assessing Freeze Injury to Winter Wheat, Alfalfa
  • Wheat Pest Problems to Watch for this Spring
  • Preparing for Rust Diseases in Winter Wheat
  • Update on Alfalfa Freeze Damage
  • Shortcuts for Planting Alfalfa
  • Predicting Alfalfa Weevil Development
  • More Stormy Weather Expected
  • Nebraska Corn at Lower Risk for Stewart’s Wilt and Flea Beetle Damage in 2007
  • No-till Corn-on-Corn: Nutrient Management
  • No-till Corn-on-Corn: Planter Management
  • Burndown Herbicide Activity — Can We Kill Anything When It’s This Cold?
  • Controling Musk Thistle in Pastures
(16 Apr)
Iowa Integrated Crop Management Newsletter
Iowa State Univ.
  • Spring management of winter annual weeds in no-till
  • Scout first and then decide: Using economic thresholds for alfalfa weevils
  • Wet soils and potential compaction
  • How many seeds does it really take to get 100,000 plants per acre at harvest?
  • Corn Nitrogen Rate Calculator Web tool update
  • Corn seeding rates and variable-rate seeding
(13 Apr)
Purdue Pest & Crop Newsletter
Purdue Univ.
  • Alfalfa Weevil and Freezing Temperatures
  • Black Cutworm Spring Arrival Met With Hostile Conditions
  • Black Cutworm Adult Pheromone Trap Report
  • Know Your Wheat Growth to Understand Spring Freeze Injury to Wheat
  • Cold Temperatures & Early Planted, Emerged Corn
  • Perspective on Planting Dates & Corn YieldProduction
  • Poison Hemlock Control in Corn and Soybean
  • Burndown and Planting Changes to Harmony Extra XP
  • 2007 Popcorn Agri-Chemical Handbook Available Online
  • Identifying Wheat Growth Stages
  • Considerations for Planting Corn into Damaged Fields of Wheat
  • Planting Soybean into Freeze Injured Wheat
(13 Apr)
Penn State Field Crop News
Penn. State Univ.
  • Know the Record Keeping Rules if You're Selling or Transporting Hay
  • Soybean Rust Update
  • Natural Gas Leasing
  • Determining Pasture Yield
  • Optimizing Gramoxone and Glyphosate Burndown
  • Small Grain Herbicides and Nitrogen Fertilizer Carriers
  • Corn Populations: Pennsylvania Style The Silent Thief
(13 Apr)
Missouri Integrated Pest & Crop Management Newsletter
Univ. of Missouri
  • Wind Information and Resources
  • Alfalfa Weevil and Freezing Temperatures
  • Domark 230ME Fungicide Receives Section 3 Registration
(13 Apr)
Michigan Field Crop Team Advisory Alert
Michigan State Univ.
  • Soybean seed applied inoculation
  • New soybean management resources are available online
  • Management of foliar wheat diseases, Part 1
  • Challenges and options for giant ragweed management
  • Updates from the 2007 Weed Control Guide for Field Crops
  • New herbicide options in corn and soybean
  • Mark your calendars: MSU Weed Tour and Crop Diagnostic Day dates are set
  • Buildup and maintenance fertilization – reducing cost
  • Nitrogen fertilizer additivies
  • New formulation of Kocide® 3000 available for 2007
(13 Apr)
Kentucky Pest News
Univ. of Kentucky.
  • Cold, wet soils could affect stands of corn
  • Alfalfa weevil and freezes
  • Proline fungicide now labeled for use on wheat in Kentucky
(13 Apr)
Spraying freeze-damaged weeds
Bob Hartzler, Iowa State Univ.
(13 Apr)
Managing winter annuals in no-till
Bob Hartzler, Iowa State Univ.
(13 Apr)
the Bulletin:
Pest mgmt & crop developmt information for Illinois
Univ. of Illinois
  • Alfalfa Weevil Activity Grinds to a Halt
  • Captures of Black Cutworm Moths Reported
  • Isomers Resolved
  • Controlling Winter Wheat
  • Field Crop Fungicide Update
  • Alfalfa After the Freeze
  • Wheat After the Freeze
  • Corn and Cold Soils
(11 Apr)
Perspective on Planting Dates & Corn Yield Potential
Bob Nielsen, Purdue Univ.
(11 Apr)
Burndown and Planting Changes to Harmony Extra XP PDF-formatted document
Glenn Nice & Bill Johnson, Purdue Univ.
(11 Apr)
New Canopy Ex Label Allows for Applications Closer to Planting PDF-formatted document
Glenn Nice, Bill Johnson, & Tom Bauman. Purdue Univ.
(11 Apr)
Considerations for Planting Corn into Damaged Fields of Wheat
Bill Johnson, Tony Vyn, Jim Camberato, Christian Krupke, & RL (Bob) Nielsen. Purdue Univ.
(10 Apr)
Syngenta Explains Plans on Agrisure RW Corn
AgWeb.com
(10 Apr)
Grain Industry Urges Syngenta to Reconsider Plan to Commercialize Biotech Corn Seed Not Approved in Export Markets
National Grain and Feed Association News
(10 Apr)
Wheat Damage from Cold Temperatures
Jim Herbek & Lloyd Murdock, Univ. of Kentucky
(10 Apr)
Freeze-Damaged Wheat Options for Forages
Chad Lee and Patty Scharko, Univ. of Kentucky
(10 Apr)
Geographical Distribution of Corn and Soybean Planting Intentions
Gary Schnitkey, Univ. of Illinois
(10 Apr)
Ohio C.O.R.N. Newsletter
The Ohio State Univ.
  • Burndown Herbicide Activity - Can We Kill Anything When It’s This Cold?
  • Water Conditioners for Glyphosate Applications
  • What Will Cold Temperatures Do To Our Wheat?
  • Alfalfa Weevil Present?
  • Monitoring for Corn Insects
  • Avail – Can It Improve Phosphorus Fertilizer Efficiency?
  • Managing Pollen Contamination of Non-GMO Corn
  • Yield and April Nitrogen Applications to Wheat
(10 Apr)
Planting Soybean into Freeze Injured Wheat PDF-formatted document
Shawn Conley and Bill Johnson, Purdue Univ.
(9 Apr)
Nebraska Crop Watch Newsletter
Univ. of Nebraska.
  • Assessing Freeze Injury to Winter Wheat
  • Warm-Season Weed Management in Winter Wheat
  • Assessing Freeze Damage to Alfalfa
  • New WeedSOFT Tank-Mix Tool Calculates, Generates Load Ticket
  • No-till Corn-on-Corn: Residue Management
  • Keep Costs in Mind When Planting Corn on Corn this Spring
(9 Apr)
Hog Producers Slow to Recognize the Ethanol Era
Chris Hurt, Purdue Univ.
(9 Apr)
Know Your Wheat Growth Stage to Predict Wheat Freeze Injury PDF-formatted document
Shawn Conley, Purdue Univ.
(9 Apr)
Cold Temperatures & Early Planted, Emerged Corn
Bob Nielsen, Purdue Univ.
(6 Apr)
Kinze Manufacturing and Ag Leader Technology partner to develop new planting technology
SeedQuest News Section
(6 Apr)
Corn & Soybean Science Newsletter
Univ. of Kentucky
  • Corn replanting options
  • Change In Weather Could Affect Wireworms
  • Corn Herbicides Affect Replanting Options
  • Diseases and Replanting Corn
(6 Apr)
Kentucky Pest News
Univ. of Kentucky.
  • Change in Weather Could Affect Wireworms in Corn
  • Folicur 3.6F and Orius 3.6F Approved by EPA for Managing Fusarium Head Blight and Deoxynivalenol in Wheat
(6 Apr)
Iowa Integrated Crop Management Newsletter
Iowa State Univ.
  • Alfalfa weevil predictions for Iowa, 2007
  • The Bt corn refuge: Is it really necessary?
  • New tool to help Iowa's soybean producers
  • Corn planting: Consider soil temperature and date
  • Manage soybean diseases with planting
  • Crop acreage shift in Iowa and the United States
  • Soybean seeding rates: The balance between cost and yield
  • Early planting of soybean is very important
  • Time to plant? Getting close!
(6 Apr)
the Bulletin:
Pest mgmt & crop developmt information for Illinois
Univ. of Illinois
  • Alfalfa Weevil Activity Is Conspicuous in Southern Illinois
  • Arthropods in Wheat Deserve Your Attention
  • Corn on Corn: What Are the Disease Risks?
  • Additions to the Corn Herbicide Arena
  • Injunction Prevents Planting Glyphosate-Resistant Alfalfa Seed
  • Weed Management Considerations in Continuous Corn
  • Controlling Existing Vegetation Prior to Planting
  • Publications on Using Site of Action to Prevent Resistance to Fungicides, Herbicides, and Insecticides
  • Glyphosate, Weeds, and Crops--Who Needs Anything Else?
  • Cold Temperatures and Wheat
  • Last Call for On-Farm N Rate Trial Cooperators
(5 Apr)
Penn State Field Crop News
Penn. State Univ.
  • Timothy Mites Active in Southeast Pennsylvania
  • Cellulosic Ethanol Update
  • Acreage Report and the Impact on PA
  • 2006 Field Trials Research Report Available On—Line
  • Spring Weed Control in Alfalfa
  • Managing Cover Crops This Spring
(3 Apr)
Ohio C.O.R.N. Newsletter
The Ohio State Univ.
  • Taking a Second look at Plant Populations for Corn
  • Starter Placement and Rate, How Far Away and At What Rate?
  • Corn Planted into Wheat Fields
  • Weed Growth and Potential Insect Problems
  • Soybean Aphid in Ohio
  • Corn Planter Adjustment - Last Minute Tips
  • Weed Management Resources
  • Common Chickweed Control in Summer Forage Seedings
  • Applying Wheat Herbicides in 28% - How Late Is Safe?
  • Urease Inhibitors, How do They Work and Should You Consider Them?
  • Anhydrous Ammonia Placement
  • What Happened to Soybean Rust?
  • Crop Insurance Dates for Corn and Soybeans
(2 Apr)
GM crops: The first ten years – global socio-economic and environmental impacts PDF-formatted document
International Service for the Acquisition of Agri-biotech Applications
(2 Apr)
Corn Supplies – Are We Out of the Woods?
Darrel Good, Univ. of Illinois
 

For current news links, visit the main page of the Chat 'n Chew Cafe at http://www.kingcorn.org/cafe.

For other information about corn, take a look at the Corn Growers' Guidebook at http://www.kingcorn.org.

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