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C.O.R.N. Newsletter 2007 Archive

  • C.O.R.N. Newsletter 2007-21
    July 9, 2007 - July 17, 2007
    Editor:
    Howard Siegrist

    In This Issue:

    • Frogeye Leaf Spot - Now Is The Time To Scout
    • So You Are Trying Fungicides On Corn And Soybeans, How To Evaluate If They Are Worth The Cost?
    • Soybean Aphid Update
    • Treating For Mites And Aphids
    • Corn Leaf Feeding By Western Corn Rootworm Adults
    • Soybean Defoliators
    • Western Bean Cutworm
    • Tissue Sampling – A Useful Tool But It Needs Context
    • Drought and Heat Stress Affecting Corn Yield Potential
    • Key Steps In Corn Pollination
    • Farm Focus Field Day On July 25 To Highlight GPS, Corn Pests, and Tillage
  • C.O.R.N. Newsletter 2007-20
    July 3, 2007 - July 10, 2007
    Editor:
    Howard Siegrist

    In This Issue:

    • Understanding Corn Crop Water Needs: Available Soil Moisture
    • Growing Degree Days, How Does This Year Compare to the Average?
    • Two-Spotted Spider Mites
    • Corn Silk Clipping
    • Corn Lodging from Rootworms
    • Late-Season Postemergence Issues in Roundup Ready Soybeans
    • Sentinel Plot Report July 2
  • C.O.R.N. Newsletter 2007-19
    June 25, 2007 - July 2, 2007
    Editor:
    Greg LaBarge

    In This Issue:

    • Comparing Soybean Aphids to Other Soybean Leaf Insects
    • Significant Armyworm Moth Numbers
    • Scouting for Corn Rootworms
    • Sentinel Plot Update for June 25
    • Hail Injury Evaluations Yield Loss in Corn
    • Wheat Harvest Tips and Conditions
    • Three Southern Ohio Crop Events for July 10th & 11th
  • C.O.R.N. Newsletter 2007-18
    June 19, 2007 - June 26, 2007
    Editor:
    Greg LaBarge

    In This Issue:

    • Potential for Two-Spotted Spider Mite
    • Sentinel Plot Report-June 18
    • Harvesting Stressed Alfalfa and Other Forages
    • Options for Producing Supplemental Forage
    • Cover Crops & Manure Nutrient Cycling meeting June 26
    • Drought and Heat Stressing Corn
    • Dry weather and Postemergence Glyphosate Management
    • Controlling Kochia and Palmer Amaranth in Warm-Season Grasses
    • Nutrient Deficiencies Popping-up
    • Sidedress Nitrogen and Crop Response
    • Agronomy Field Day July 10
  • C.O.R.N. Newsletter 2007-17
    June 13, 2007 - June 18, 2007
    Editor:
    Greg LaBarge

    In This Issue:

    • Control of Volunteer Roundup Ready Corn
    • Variable Corn Size and Postemergence Herbicides
    • OSU Weed Science Field Day
    • Cereal Leaf Beetle, Leafhopper and Soybean Aphid Update
    • Alfalfa Field Day – Defiance County, June 21st
    • Corn Ear Formation: Effects of Early Season Dry Weather
    • Uneven Plant Height in Corn: Effects on Yield
  • C.O.R.N. Newsletter 2007-16
    June 5, 2007 - June 12, 2007
    Editor:
    Greg LaBarge

    In This Issue:

    • European Corn Borer Adults Seen in Ohio
    • Armyworms on Corn
    • Soybean Aphid Update
    • ALS-Resistant Ragweed Control in Non-GMO Soybeans
    • Field-Edge Weed Control Prevents Future Problems
    • Got Residual?
    • Crop Germination and Emergence in Dry Soils
    • Staging Development in Early Season Corn
    • Sentinel Plot Report – June 4
    • Morningglory Control in Roundup Ready/Glyphosate Tolerant Corn
  • C.O.R.N. Newsletter 2007-15
    May 30, 2007 - June 5, 2007
    Editor:
    Keith Dietrick

    In This Issue:

    • Conditions Favorable for "Rootless, Floppy Corn"
    • Dry Weather and Postemergence Herbicide Activity
    • Glyphosate Resistance in Giant Ragweed Part I: The Current Situation
    • Glyphosate Resistance in Giant Ragweed Part II: Managing Postemergence Glyphosate Applications
    • The Yellow Weed
    • Potato Leafhoppers Arriving in Alfalfa
    • Soybean Sentinel Report for May 29
    • Interested in Becoming a Certified Crop Advisor?
    • Alfalfa Field Day – Defiance County, June 21st
    • ALERT - Potato Leafhoppers in Seedling Alfalfa Stands
    • To Sidedress or Not To Sidedress, That is the Question.
  • C.O.R.N. Newsletter 2007-14
    May 21, 2007 - May 29, 2007
    Editor:
    Keith Diedrick

    In This Issues

    • Purple and Yellow Corn, What is Going On?
    • "Patching In" Poor Corn Stands
    • Foliar Fungicide Use in Corn
    • Pokeweed Control - It’s Not Easy
    • Nutrient Value of Wheat Straw
    • Barley Yellow Dwarf (BYDV) Virus in Wheat
    • The Risk of Head Scab is Low
    • Armyworms
    • The Sentinel Plot Report
    • Other Insect Concerns on Field Crops
  • C.O.R.N. Newsletter 2007-13
    May 14, 2007 - May 21, 2007
    Editor:
    Keith Diedrick

    In This Issue:

    • Replanting Considerations for Corn
    • Killing Failed Roundup Ready Corn Stands
    • More on Dry Weather and Preemergence Herbicides: What to Do Now?
    • Postemergence Control of Dandelion in Corn
    • Conditions Not Favorable for Foliar Disease Development
    • Soybean Aphid Update
    • Bean Leaf Beetle
    • Black Cutworm Update
    • Slugs
    • Soybean Rust Find in Louisiana
  • C.O.R.N. Newsletter 2007-12
    May 8, 2007 - May 14, 2007
    Editor:
    Keith Diedrick

    In This Issue:

    • Dry Weather and Preemergence Herbicides
    • Using Herbicides and Tillage to Control Large Weeds
    • Hail Damage Assessment for Wheat
    • Managing Wheat Diseases with Fungicides
    • Aphids on Wheat
    • Alfalfa Recovery from the Spring Frost
    • Black Cutworm on Corn
    • Soybean Rust Identified in Florida

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Crop Observation and Recommendation Network

C.O.R.N. Newsletter is a summary of crop observations, related information, and appropriate recommendations for Ohio crop producers and industry. C.O.R.N. Newsletter is produced by the Ohio State University Extension Agronomy Team, state specialists at The Ohio State University and the Ohio Agricultural Research and Development Center (OARDC). C.O.R.N. Newsletter questions are directed to Extension and OARDC state specialists and associates at Ohio State.