Weekly Issues for 2011

• 12/19/2011 - 12/25/2011
  • First Iowa Confirmation of Resistance to Bt Corn by Western Corn Rootworm
• 12/5/2011 - 12/11/2011
  • Change in Phosphorus and Potassium Contents of Cornstalks Over Time
  • CCA Exam Review Course Offered by ISU Extension
  • Subsoil Moisture Levels a Concern for Northwest Iowa 2012 Crops
  • A 10-Year Summary of Testing for Nematodes that Feed on Corn in Iowa
  • Weed Identification Guide Available Electronically
• 11/28/2011 - 12/4/2011
  • 2011 Iowa Crop Performance Tests for Corn and Soybean
  • New Approaches to Soil and Water Management is Workshop Focus
• 11/7/2011 - 11/13/2011
  • Fall Time to Sample for SCN – But Not for Nematodes That Feed on Corn
  • Management Considerations for Post Flooding Soils
• 10/24/2011 - 10/30/2011
  • Anhydrous Ammonia Application and Dry Soils
  • Integrated Crop Management Conference Nov. 30-Dec. 1
• 10/17/2011 - 10/23/2011
  • Know Your Choices: Hundreds of SCN-resistant Soybean Varieties For Iowa
  • End of Season Soybean Rust Update
  • Frogeye Leaf Spot Resistance NOT Found in Iowa
• 10/3/2011 - 10/9/2011
  • Be Cautious When Interpreting Early Fall Soil-Test Results
  • New Publication Makes Interpreting Manure Nutrient Analyses Easier
• 9/19/2011 - 9/25/2011
  • Frost Damage to Crops
• 9/12/2011 - 9/18/2011
  • Does Corn Lose Drymatter After Physiological Maturity? No
  • New Publication Helps Farmers Manage Energy Used for Corn Drying
  • Harvest Update – It’s that Time Again
  • Fall Cutting Management for Alfalfa
  • Prussic Acid Poisoning Potential in Frosted Forages
  • Comparing Nematode Management Products on Corn in Strip Trials
  • Soil Management Decisions This Fall
  • Managing Soil by the Inches
• 9/5/2011 - 9/11/2011
  • Harvest Tips for Lodged Corn
• 8/29/2011 - 9/4/2011
  • Soil Management Clinic Offered Sept. 14
  • Corn Disease Diagnostics Clinic Sept. 8
  • Webinar to Address Flood Recovery for Cropland
• 8/22/2011 - 8/28/2011
  • Crop Minute - Aphids in Corn
  • Reduce Risk of Mycotoxin Contamination by Scouting Fields for Ear Rot
  • Survival of the Goss’s Wilt Bacterium and Management Implications
  • New Stink Bug Identification Card Available
• 8/15/2011 - 8/21/2011
  • Corn Aphids Explode
  • Crop Minute - Goss's Wilt
  • A New Bean Leaf Beetle Threshold Calculator is Created
• 8/8/2011 - 8/14/2011
  • CREP Wetland Tour near Nashua Aug. 24
  • August 2011 Iowa Corn Yield Forecast
  • Weather Impact on Midwest Corn 2011
  • Iowa Learning Farms and ISU Extension to Host Field Day Aug. 25
• 8/1/2011 - 8/7/2011
  • Will Goss’s Wilt be the “Disease of the Year” in 2011
  • Flood Damaged Crops, Crop Insurance Payments and Lease Contracts
  • ISU Extension Offers Ag Drainage School
• 7/25/2011 - 7/31/2011
  • Insecticide and Insecticide-Fungicide Tank Mix Applications in Soybean
  • Don’t Stop Now!
  • Long Silks?
  • Drought Stress Favors Grasshoppers and Spider Mites
• 7/18/2011 - 7/24/2011
  • Japanese Beetle Activity Increases in Iowa
  • Begin Scouting for Sudden Death Syndrome in Soybean
  • Aridity Index, a Guide to Rain and Temperature Impact on Corn
  • Is Foliar Fertilization Useful to Supplement Pre-plant Fertilization
  • Crop Minute - Scouting Corn Fields
  • Foliar Fungicides on Corn
• 7/11/2011 - 7/17/2011
  • Corn and “a Big Long Heat Wave on the Way”
  • Crop Damage Meeting July 19 at Marshall County Extension Office
  • Managing Glyphosate Failures
  • The Effect of Spraying Fungicides at R1 or R3 on Soybean
  • Crop Minute - Scout For Soybean Aphids
  • Thoughts on Spraying Downed Corn with a Fungicide
  • Storm Damage Meeting Near Vinton
  • Updated Soybean Aphid Field Guide Available
  • Wind and Corn
  • Corn Leaf Diseases and Soybean Stem Diseases Prevalent Throughout Iowa
  • Corn or Soybeans Looking Stressed? Nematode Damage is Becoming Apparent
  • North American Manure Expo July 20 in Nebraska
• 6/27/2011 - 7/3/2011
  • Western Bean Cutworm Scouting Update
  • Crop Minutes: Goss's Wilt and Soybean Cyst Nematode Scouting
  • RUSLE2 and P Index Introductory Workshop for Writers of Manure and Nutrient Plans
  • Goss’s Wilt Found in West Central Iowa
• 6/20/2011 - 6/26/2011
  • Predicted Corn Rootworm Egg Hatch Approaching
  • Yellow Leaves Emerge from Twisted Whorls – 2011
  • Flooding and Stored Grain
  • Oats for Forage
  • SCN Females Now Apparent on Soybean Roots
  • Scouting Reveals a Mixture of Caterpillars in Corn
• 6/13/2011 - 6/19/2011
  • Use Self-Inspection Checklists to Ensure Worker Protection Standard Compliance
  • Why Conservation Planning
  • Upcoming Workshop Spotlights Beneficial Insects
  • Estimating Nitrogen Losses
  • Measuring Corn Nitrogen Status
  • Applying Additional Nitrogen (and Sulfur) After Wet Conditions
  • Yellow Corn Plants
• 6/6/2011 - 6/12/2011
  • Post Emergent Damping Off of Corn Prevalent in Some Fields
  • Hail on Corn
  • Crop Management Clinic Features 20 Management Topics
  • Field Diagnostic Clinic is a Return to the Basics
• 5/30/2011 - 6/5/2011
  • Stalk Borer Scouting Dates for 2011
  • Iowa State Research Farm Field Days to Begin June 15
  • Start Scouting Beans for Damping Off
• 5/23/2011 - 5/29/2011
  • Spring Control of Multiflora Rose
  • Mini-bulk Container Recycling
  • 2011 Weed Science Field Day
  • CCA Credit Opportunity – June 15
  • Estimating Quality of First Crop Alfalfa
  • Japanese Beetle Distribution in 2010
  • Spring is Time to Evaluate Field Grass Waterways
  • Soybean Field Guide Revised and Updated
  • Early Preplant and Preemergence Applications Not Season Long Control
• 5/16/2011 - 5/22/2011
  • Corn Flea Beetles are Active in Corn
  • You Can ‘Row’ the Corn
  • Crop Minute - In the Corn Field
• 5/9/2011 - 5/15/2011
  • Fields with Damped Off Soybean Seedlings Required for Research Project
  • Crop Minutes – Corn Replanting and Black Cutworm
• 5/2/2011 - 5/8/2011
  • Black Cutworm Scouting Advisory 2011
  • 2011 Crop Minutes Begin This Week
• 4/25/2011 - 5/1/2011
  • Early Preplant Time – Opportunity Lost!
  • How Much Corn Can We Plant on a Good Day in Iowa?
  • Maximizing Yield Potential by Optimizing Soil Management Practices
  • Corn Hybrids Adjust to Late Planting Dates
• 4/18/2011 - 4/24/2011
  • First Step to Achieving Uniform Plants
• 4/11/2011 - 4/17/2011
  • Expiration of Biotech Crop Patents – Issues For Growers
  • Stewardship, Yields, Money and Resistance
  • Iowa Learning Farms’ Webinar Offers Tips on Nitrogen and Water Quality
  • Corn Nitrogen Rate Calculator Update
  • Wait to Plant Corn with Forecast of Impending Cold Spell
• 4/4/2011 - 4/10/2011
  • More Bean Leaf Beetles Predicted This Summer
  • Alfalfa Weevil Hatch Happening Now
  • A 2011 Prediction for Stewart's Disease of Corn
  • Corn Growth Classic Rewritten and Available to Order
• 3/21/2011 - 3/27/2011
  • Save Tractor Fuel by ‘Shifting up, Throttling Back’
  • Popular Soybean Disease Publication Now Available as E-Book
  • A New IPM Extension Journal Now Available
• 3/14/2011 - 3/20/2011
  • Pesticide Applicator Testing Changes
• 3/7/2011 - 3/13/2011
  • Check the Condition of Recovering Forage Stands
  • Checklist for Spring Forage Seedings
• 2/28/2011 - 3/6/2011
  • Businesses Can Sponsor Soybean Field Guide Reprints
  • Cooperators Needed for Black Cutworm Monitoring
  • Brown Marmorated Stink Bug Detection in Iowa
• 2/21/2011 - 2/27/2011
  • How Does Soybean Yield Fare Following Corn
  • Use Facts to Make Glyphosate and Glyphosate Resistant Crop Decisions
  • Fact or Fiction: Ammonia Application Should Not Exceed 10 lb N per Unit Soil CEC
• 2/14/2011 - 2/20/2011
  • Crops Scout School March 5
  • Acquiring Machinery and Machinery Services Workshop March 2
• 2/7/2011 - 2/13/2011
  • Southern Iowa Biomass Crop Workshop March 17
  • New Combination Crop Insurance Workshops Scheduled
  • Waterhemp Wins Again
  • Help Sessions Offered for Commercial Pesticide Applicator Test
• 1/31/2011 - 2/6/2011
  • Now is a Good Time to Plant New Forage Species in Pastures
  • Commercial Pesticide Applicator Spring Continuing Instructional Courses (CIC)
• 1/24/2011 - 1/30/2011
  • Pesticide Applicator Input Requested on EPA Web-Distributed Labeling Pilot
  • Are We Making Progress With No-till
• 1/17/2011 - 1/23/2011
  • New Soybean Disease Guide Now Available
  • Conference Looks at Using Climate Information to Assess Expected Yields
  • Spread of Glyphosate Resistant Weeds
• 1/3/2011 - 1/9/2011
  • Sudden Death Syndrome-Resistant Soybean Variety List Available
  • Land Roller Use: Challenges and Benefits