May 2005

(31 May)

Ohio C.O.R.N. Newsletter

The Ohio State Univ.

• Wheat Head Scab Risk Prediction For Wheat
• Staging Early Season Growth In Corn
• A Few Things to Think About With Regard to Postemergence Herbicide Applications in Corn and Soybeans
• Applying Nitrogen to Young Corn
• Scout for Armyworm Now
• Glyphosate Formulations
• Ammonium Sulfate with Glyphosate – Why and How Much?
• Potato Leafhopper on Alfalfa
• Let’s Get Ready Sprayer Clinic & Wheat Production Field Day

(31 May)

Corn And Soybean Crops Off To A Slow Start

Darrell Good, Univ. of Illinois

(31 May)

A Tale of Two Plants

Bob Nielsen, Purdue Univ.

(31 May)

Missouri Integrated Pest & Crop Management Newsletter

Univ. of Missouri

• Early Season Soybean Diseases
• Bean Leaf Beetle Causing Damage in Some Early Planted Soybean Fields

(26 May)

Purdue Pest & Crop Newsletter

Purdue Univ.

• Some Wireworm Damage Being Reported
• Armyworm Look-Alike in Wheat
• Potato Leafhopper Have Arrived
• Singin’ From The Same Sheet of Replant Music
• Ear Size Determination in Corn
• No Tillage: The Best Tillage Choice for Replanting

(26 May)

Nebraska Crop Watch Newsletter

Univ. of Nebraska.

• Western Nebraska winter wheat facing assault
• Fungicide window narrows; protect flag leaf
• Winter wheat field tours feature variety blends
• State wheat variety tour dates
• Delaying weed control decreases soybean yield
• Heavy glyphosate use may be leading to weed species shift
• Research compares myriad glyphosate products
• Raise cutting height when alfalfa harvest is delayed

(26 May)

Michigan Field Crop Team Advisory Alert

Michigan State Univ.

• Ballad biofungicide registered for soybean rust and can be used for organic soybean production
• Soybean aphid update
• Speedier scouting of soybean suckers?
• Watch for weed escapes after soil applied herbicides in corn
• Control weeds now – don’t delay!
• Post-emergence herbicide strategies in non-GMO soybeans
• 2005 MSU Weed Tour
• MSU Crop Management and Field Diagnostic School - July 27

(26 May)

Stressed corn and implications on weed management tactics

Micheal Owen, Iowa State Univ.

(26 May)

the Bulletin:
Pest mgmt & crop developmt information for Illinois

Univ. of Illinois

• Waiting for Insects
• Corn Rootworm Larval Hatch: Should We Expect a Late Hatch in 2005?
• Stalk Borers Found Moving to Corn
• Preparing to Monitor for Western Bean Cutworms
• Stripe Rust of Wheat--Watch for It in Illinois
• Postemergence Options for Grass Control in Corn
• Let the Sun Shine

(26 May)

Nitrate test gets soil nutrition levels 'N' line

Purdue/Ohio State AgAnswers

(23 May)

Ear Size Determination in Corn

Bob Nielsen, Purdue Univ.

(23 May)

Weed and Volunteer Corn Management in Replanted Corn Fields

Bill Johnson & Glenn Nice, Purdue Univ.

(23 May)

No-till and Strip-till Corn Shines in 2005

Tony Vyn, Purdue Univ.

(23 May)

Ohio C.O.R.N. Newsletter

The Ohio State Univ.

• Corn Replant Decisions Update and Review
• Weed Escapes in Corn and Postemergence Options
• Postemergence Control of Dandelion
• Assessing the Current Level Of Wheat Leaf Diseases In Ohio and Making Fungicide Applications
• Forecasting Wheat Fusarium Head Blight or Head Scab in Ohio
• Slugs Beginning to Feed
• Time to Scout for Cutworm
• Status of Soybean Rust
• Wheat Production Field Day June 21, 2005

(23 May)

Nebraska Crop Watch Newsletter

Univ. of Nebraska.

• Replant decisions
  * in corn
  * replanting with Bt corn
  * in soybean
  * estimating drilled soybean
  * related to insect control
  * related to nitrogen loss
• Flooding effects at various plant growth stages
• Market Journal: When is replanting the right option
• Salvaging poor wheat stands
• Foliar applications of plant growth hormones in corn and soybean
• Nebraska resources offer latest on soybean rust
• May 11 rains set 100-year records
• Post-storm weed control issues
• Selecting the right post-emergence herbicides
• Comparing glyphosate products: Research shows few differences
• Alfalfa developing early; watch for new shoot growth
• Protect hay to maintain nutrient quality

(23 May)

Missouri Integrated Pest & Crop Management Newsletter

Univ. of Missouri

• Wheat Diseases Update-May 16
• Stewart’s Bacterial Wilt of Corn
• Armyworm Larvae Present in Fescue Pastures
• Armyworms in Wheat Fields
• Armyworms in Corn
• Scattered Black Cutworm Problems

(22 May)

Singin’ From The Same Sheet of Replant Music

Bob Nielsen & Greg Shaner, Purdue Univ.
Peter Thomison & Patrick Lipps, Ohio State Univ.

(20 May)

Purdue Pest & Crop Newsletter

Purdue Univ.

• Early Planting and Rootworm Insecticide Efficacy
• Planning for the 2005 Soybean Aphid Population
• Slug Damage and Rescue Controls
• Weed and Volunteer Corn Management in Replanted Corn Fields
• Sugar Maple in No-Till Fields
• Anthesis: Critical Stage for Soft Red Winter Wheat
• Tips for Staging Damaged Corn

(19 May)

Corn and Soybean Emergence and Early Growth

S.L. Naeve and D.R. Hicks, Univ. of Minnesota

(19 May)

Michigan Field Crop Team Advisory Alert

Michigan State Univ.

• Insect update
• Springtails damaging sugar beets again
• Check for black cutworm feeding
• Cold weather stress on corn and soybean

(19 May)

Kentucky Pest News

Univ. of Kentucky.

• Monitoring corn seedlings

(19 May)

Soil-Applied PPO injury on Soybeans

Bob Hartzler, Iowa State Univ.

(19 May)

Iowa Integrated Crop Management Newsletter

Iowa State Univ.

• Black cutworms, dingy cutworms, and predicted cutting dates
• Change in yield and quality of alfalfa
• Delayed soil-applied corn herbicide options
• Importance of timely scouting for weeds
• Stalk borers love giant ragweed -- and corn

(19 May)

the Bulletin:
Pest mgmt & crop developmt information for Illinois

Univ. of Illinois

• Arrival of More Spring Moths
• Wireworms Wanted!
• Assessing Early-Season Corn for Insect Injury
• Armyworms Reported in Northern Missouri Pastures: Don't Neglect Scouting of Pastures, Corn, and Wheat Fields
• Chatter About Soybean Insects Will Escalate
• Smooth Sailing Ahead?

(17 May)

Tips for Staging Damaged Corn

Bob Nielsen, Purdue Univ.

(16 May)

Ohio C.O.R.N. Newsletter

The Ohio State Univ.

• Corn Emergence Problems and Replant Decisions
• “Patching in” Corn and Uneven Emergence
• Replant Considerations: Hybrid Selection Issues
• Seeding Rates & Replanting Corn
• Weed Management in Replanted Corn Fields
• Corn Replanting and Fertilizer Issues
• Seed Treatments are Especially Important for Phytophthora sojae Now!
• Wheat Powdery Mildew Now And Head Scab Risk Evaluation Soon
• Insect Update Strategies to Reduced Spray Drift

(16 May)

What Are Corn And Soybeans Worth?

Darrell Good, Univ. of Illinois

(16 May)

Kentucky Pest News

Univ. of Kentucky.

• Delayed applications of soil-applied herbicides for corn
• Wireworms in corn
• Cool, wet soils can favor seedling disease problems
• Aphids and spittlebugs active in alfalfa

(12 May)

Purdue Pest & Crop Newsletter

Purdue Univ.

• Extremely Low Black Cutworm Moth Catches, Hopefully Good News
• Consider Corn Borer-Bt for Replanting of Corn
• Glyphosate Resistant Horseweed (Marestail) Found in 9 More Indiana Counties
• Frosted Beans: Should I Replant?
• Some Mid-April Planted Corn in Trouble

(12 May)

Nebraska Crop Watch Newsletter

Univ. of Nebraska.

• May weather challenges crops; but most expected to recover
• Managing frozen, high moisture stored corn
• Pest problems developing in Panhandle wheat
• Consider treatment criteria and profitability of fungicides
• Injury and economics may suggest grazing wheat
• Managing sunflower diseases
• Controlling problem weeds in Roundup Ready soybean
• Target weeds in sorghum early in the season
• Scout emerging corn for insect pests
• Alfalfa weevils feeding

(12 May)

Michigan Field Crop Team Advisory Alert

Michigan State Univ.

• Soybean aphid reproduction on buckthorn
• New web site available for soybean growers
• Fusarium head blight of wheat (wheat scab)
• Alfalfa weevil scouting
• Soil pests and seed treatments
• Dandelion management in field and forage crops
• Delayed herbicide application in corn
• Variable sugar beet emergence and weed control
• PSNT refresher

(12 May)

Importance of Timely Scouting for Weeds

Bob Hartzler, Iowa State Univ.

(12 May)

Iowa Integrated Crop Management Newsletter

Iowa State Univ.

• Freezing crops and freezing soil
• Cold, then warm equals average
• Seed treatments may not stop cutworms
• After-freeze update on sentinel plots
• Soil moisture conditions -- consideration for soil compaction
• Herbicide drift versus cold temperature injury

(12 May)

the Bulletin:
Pest mgmt & crop developmt information for Illinois

Univ. of Illinois

• Training Session to Focus on Asian Soybean Rust
• Weed Science Field Tour
• Why So Much Bird Damage to Early-Planted Corn?How Can It Be Prevented During Replanting?
• Insecticides, Fungicides, and Insecticidal Seed Treatments for Soybeans--What Do Our Data Tell Us?
• Considerations for Weed Control in Corn
• Some Corn Stands Struggle
• Lessons from an Unusual Planting Season

(11 May)

Glyphosate Resistant Horseweed (Marestail)
Found in 9 More Indiana Counties

Bill Johnson & Vince Davis, Purdue Univ.

(11 May)

Rain May Carry Rust Warning

DTN Soybean Rust Information Center

(10 May)

Ohio C.O.R.N. Newsletter

The Ohio State Univ.

• Check Corn Fields for Emergence Problems
• Assessing Corn Seedling Emergence and Seedling Diseases
• Wheat Yellowing, Is It Nitrogen Deficiency?
• What Is The Risk Of Head Scab On Wheat This Year?
• Rotary Hoe for Weed Control
• Controlling Emerged Grasses with Atrazine
• Soybean Rust Update
• Bean Leaf Beetle in Soybean
• How to Kill Roundup Ready Corn – Part II

(10 May)

The Weather Market Begins

Darrell Good, Univ. of Illinois

(8 May)

Some Mid-April Planted Corn in Trouble

Bob Nielsen, Purdue Univ.

(7 May)

Purdue Pest & Crop Newsletter

Purdue Univ.

• Perfect Weather for Seed Damaging Insects Insecticide
• Restrictions When Replanting Corn
• Wheat Yield Response to Cold Stress
• I’ve Got the Corny Stand Establishment Blues…
• Stress Continues for Corn Growing Under Refrigerated Conditions

(7 May)

Nebraska Crop Watch Newsletter

Univ. of Nebraska.

• Assessing crop damage from freezing temps in Wheat, Alfalfa, & Corn
• Early grasshopper surveys indicate increases
• Be alert to alfalfa weevil feeding
• Conditions right for seedling diseases
• Preemergence corn herbicides applied postemergence
• Table of preemergence herbicides used postemergence
• Weed Science Field Days set for June
• Treat musk thistles in the rosette stage
• Nutrient management for sunflowers
• How early is early when it comes to alfalfa harvest

(7 May)

Missouri Integrated Pest & Crop Management Newsletter

Univ. of Missouri

• Below Normal Soil Temperatures Observed Throughout the State
• Preemergence Herbicide Injury Symptoms on Corn
• Corn and Soybean Differ for Response to Freeze Damage
• Purple Corn and Soybean Plants

(7 May)

Michigan Field Crop Team Advisory Alert

Michigan State Univ.

• Soybean rust update
• Start clean: Timely burndown applications are critical in protecting soybean yield
• Reflex Section 18 Exemption Granted: Dry Beans
• Weed tour and diagnostic school dates set
• New product registration for Eminent in sugar beet
• My annual plug for the Chat n’ Chew
• Transporting agricultural supplies classified as hazardous

(7 May)

the Bulletin:
Pest mgmt & crop developmt information for Illinois

Univ. of Illinois

• Soybean Alatoid Nymphs Reported on Buckthorn Plants on Purdue Campus
• Soil Insecticide Use and Replant Decisions: What Do the Labels Say?
• Expression of Corn Rootworm Transgenic Cry3Bb1 Protein Reported to Diminish from V4 to V9 Stages in Five Hybrids
• Update on Black Cutworm Trap Catches
• Section 18 Label Granted for the Fungicide Folicur to Control Fusarium Head Blight (Scab) on Wheat in Illinois in 2005
• Understanding and Managing Fusarium Head Blight (Scab) of Wheat
• Second Update for 2005 on Management of Soybean Rust with Fungicides in Illinois
• Delayed Applications of Soil- Applied Corn Herbicides
• Postemergence Corn Herbicides--Considerations to Keep in Mind
• The Good, the Bad, and the Unsightly
• All OK Underground?

(7 May)

Wheat standing 'head' strong after frosty nights

Purdue/Ohio State AgAnswers

(7 May)

Cold, hard reality is corn probably spared damage

Purdue/Ohio State AgAnswers

(7 May)

Iowa Integrated Crop Management Newsletter

Iowa State Univ.

• Frost-damaged corn
• Should I hold back on planting soybean?
• Frost/freeze on alfalfa
• Bean leaf beetle and bean pod mottle virus management: An integrated approach
• Three new products receive Section 18 labels for Asian soybean rust management
• Cool temperatures favor corn seedling diseases
• Progress in soybean rust sentinel plots
• Soybean rust update - May 2, 2005
• How to reduce potential soil erosion early in the spring
• Herbicides and cold weather

(4 May)

Herbicides and Cold Weather

Bob Hartzler & Kristine Schaefer, Iowa State Univ.

(3 May)

I've Got the Corny Stand Establishment Blues...

Bob Nielsen, Purdue Univ.

(3 May)

Ohio C.O.R.N. Newsletter

The Ohio State Univ.

• Wheat Development and Disease Update
• Soybean Rust Update
• Soybean Seeding Rates and Calibration
• Slug Update
• Early Season Insect Pests in Corn & Soybeans
• Black Cutworm Moth Flights Remain Low
• Switching from Preemergence to Early Postemergence in Corn
• Burndown Programs Without 2,4-D Ester
• Corn Replanting Considerations - don’t be in rush to replant
• Replanting Roundup Ready Corn – how to kill the first planting?