May 2009

(28 May)
Wisconsin Crop Manager Newsletter
Univ. of Wisconsin
Video - Spring scouting in Winter Wheat University Response to Plant Health Label for Headline Fungicide True Armyworms

(28 May)
Purdue Pest & Crop Newsletter
Purdue Univ.
Dead/Dying Seedlings, Critters Aplenty It's Potato Leafhopper in Alfalfa Time Wheat Disease Update When Should Weeds be Treated with Postemergence Herbicides?

(28 May)
Michigan Field Crop Team Advisory Alert
Michigan State Univ.
Scientific advisory panel makes recommendations on optimum acre-max seed blend refuge Get the most out of your glyphosate applications What is the direct carbon footprint of biofuel relative to gasoline? Money saved with manure nutrients

(28 May)
the Bulletin: Pest mgmt & crop developmt information for Illinois
Univ. of Illinois
Significant Black Cutworm Injury Reported in Ohio: Don't Forget to Scout Corn Fields Don't Neglect Scouting of Alfafa for Potato Leafhoppers Replanting Corn: How to Control Corn Plants from the Initial Planting Nitrogen Management in a Challenging Spring Soybean Development and Considerations After Planting Expectations for Late-Planted Corn

(26 May)
When Should Weeds be Treated With Post-Emergence Herbicides?
Tom Jordan, Bill Johnson, Glenn Nice, and Tom Bauman. Purdue Univ.

(26 May)
Penn State Field Crop News
Penn. State Univ.
The New ACRE (Average Crop Revenue Election) Program of the 2008 Farm Bill Don’t Forget That Grain in Storage Control of Roundup Ready Corn: Volunteers or Replanting Considerations When Adding Residual Herbicides to Post Applications in Corn Keep Watch for Herbicide Resistant Weeds Topdressing Alfalfa Keep Hay of Different Qualities Separate Caution: Hot Hay Be Aware of Potato Leafhopper

(26 May)
Crop-Pest Ontario
Ontario Ministry of Agriculture, Food & Rural Affairs
Yellow wheat - Think Virus Crop Emergence and Early Development Yellow Wheat part II - Causes and Corrections New "Baute Bug Blog" Attention Herbicide Applicators

(26 May)
Ohio C.O.R.N. Newsletter
The Ohio State Univ.
Wheat Scab Update May 26, 2009 Troubleshooting Miscellaneous Emergence Problems in Corn Black Cutworm and Bean Leaf Beetle Becoming More Common Fungicides will not Control Diseases Caused by Viruses Potato Leafhopper in Alfalfa

(22 May)
Ohio wheat could be at risk for head scab, if rain coincides with flowering
Purdue/Ohio State AgAnswers

(22 May)
Nebraska Crop Watch Newsletter
Univ. of Nebraska.
Risk of Fusarium Head Blight Low in 2009 When Soil Crusting Affects Soybean Emergence Be Alert to Pre-harvest Intervals for Wheat Fungicides Performing a CSI on Slow-to-Grow Wheat Corn Leaf Burn from Sidedressing Anhydrous Ammonia Evaluating Corn Stands Continue Scouting for Alfalfa Weevil Feeding

(22 May)
Purdue Pest & Crop Newsletter
Purdue Univ.
Planting is Delayed, So is Insect Development...Don't Forget Rootworm Protection Replanting Corn and Rootworm Insecticide Restrictions Considerations for Replanting Soybean in Drowned Out Corn Fields The Who's Who of Clovers

(21 May)
Wisconsin Crop Manager Newsletter
Univ. of Wisconsin
Cattail Control in Corn Black Cutworm Alfalfa Weevil

(21 May)
Michigan Field Crop Team Advisory Alert
Michigan State Univ.
Few insects to report Intrepid (methoxyfenozide) endangered species restrictions for Michigan In-season weed management in alfalfa The fear of needle nematodes Crust busting: some thoughts on rotary hoes 2009 MSU Weed Tour

(21 May)
the Bulletin: Pest mgmt & crop developmt information for Illinois
Univ. of Illinois
Make Plans to Attend Summer Crops Training Center Updates A Tribute to Kevin Steffey, Extension Entomologist Extraordinaire Standing Water in Fields and Corn Rootworm Survival Scientific Advisory Panel Report on Pioneer's Optimum AcreMax Seed Mix Refuge (Refuge-in-a-Bag) Request Available On-Line University of Illinois Weed Science Field Day Rescheduled Some Additional Thoughts About Managing Weeds Before Planting Wheat Disease Update Should I Switch from Corn to Soybean? (Continued) Replanting Corn

(20 May)
Considerations for Replanting Soybean in Drowned out Corn Fields
Bill Johnson & Glenn Nice, Purdue Univ.: Note: The table in this article is itself an embedded link.

(20 May)
Penn State Field Crop News
Penn. State Univ.
Frosty Mornings Stress Crops and Agronomists Assessing Corn and Soybean Stands Armyworm: Time to Begin Scouting for this Pest Marketing: What to do? What to do? Control and Timing Pasture Weeds Update on Black Cutworm and Bean Leaf Beetles Wheat Scab Assessment Tool Available How Much Nitrogen is Still in Your Fields?

(20 May)
Missouri Integrated Pest & Crop Management Newsletter
Univ. of Missouri
Wheat disease update MU Extension Will Scout Missouri Soybean Fields for Rust in 2009 How To Kill Your Corn Replant Options Following Preemergence Corn Herbicides Alfalfa Weevil Larvae Infected with Fungal Pathogen Potential for Black Cutworm Problems Still Exist True Armyworm Numbers Drop in Wheat and Fescue

(20 May)
Sidedressing N: A Review
George Rehm, Univ of Minnesota

(19 May)
Iowa Integrated Crop Management Newsletter
Iowa State Univ.
Western Iowa No-tillers to Hold Field Day June 16 Check General Root and Mesocotyl Health when Assessing Corn Stands Volunteer Corn Management Early-Season Weed Competition Brisk, but Basically OK Drift Management Considerations Assessing Corn Stands for Replanting

(17 May)
Ohio C.O.R.N. Newsletter
The Ohio State Univ.
Wet Weather, Should You Be Concerned About Nitrogen Loss? Have Your Soybeans been Treated and Inoculated Too Long? Should seeding rates be changed for late corn plantings? Late Plantings and Insects Planting Delays and Switching to Earlier Maturing Corn Hybrids An incomplete list of products that won’t help glyphosate burn down big weeds in no-till soybeans A few more things about 2,4-D ester Declare, a New Insecticide Alfalfa and Regrowth Frost Damage in Wheat

(17 May)
Nebraska Crop Watch Newsletter
Univ. of Nebraska.
Wheat Disease Update Regional Wheat Variety Tours in mid June Timing Postemergence Weed Control in Corn Narrow Row Spacing in Soybeans Aids Velvetleaf Control Controlling Common Mullein in Pastures Continue Scouting for Alfalfa Weevil Feeding Fertilize Warm-Season Grasses Yet in May Tips for Hastening Hay Dry-Down Using Grazing to Control Early Season Pasture Weeds Recommended Steps for Washing Pesticide-Contaminated Clothing Nebraska Wheat Forecast Drops 9%

(17 May)
Is the Corn Market Too Complacent About Planting Delays?
Darrel Good, Univ. of Illinois

(15 May)
Purdue Pest & Crop Newsletter
Purdue Univ.
Slugs and Seed Slots Thanks to the Black Cutworm Pheromone Trap Cooperators Black Cutworm Adult Pheromone Trap Report Wheat Viruses Confirmed in Indiana In this POST Herbicide Era - Consider Using a Soil Applied Herbicide Flexstar GT Reduced Rate Supplemental Label Root Development in Young Corn Einstein's Theory of Relativity as it Applies to Soil Moisture

(15 May)
Crop-Pest Ontario
Ontario Ministry of Agriculture, Food & Rural Affairs
Three New Herbicide Options for Edible Bean Growers Soybean Rust Monitoring Program in Place for 2009 Weed Control in New Alfalfa Seedings Soybean Rust Update - May 13, 2009 Soybean Cyst Nematode Varieties Pay Big Dividends Cereal Leaf Beetle Concerns Alfalfa Weevil Activity

(14 May)
Wisconsin Crop Manager Newsletter
Univ. of Wisconsin
Crop Diagnostic Training Center 2009 workshops announced Bean Leaf Beetles - in WI - in 2009? Guide to establishing and managing switchgrass updated Field Horsetail ID and Management in Field Corn Considering Foliar Fungicides for Corn in 2009 - Part 2 Considering Foliar Fungicides for Corn Grain in 2009 - Part 1

(14 May)
Missouri Integrated Pest & Crop Management Newsletter
Univ. of Missouri
Field Crop Disease Update Planting Date Effects on Corn Yield Bad Things Sometimes Happen to Good Seeds

(14 May)
Michigan Field Crop Team Advisory Alert
Michigan State Univ.
Grub chomping common this spring Watch for potato leafhoppers and other pests from the south Bin entry and rescue training for the grain and feed industry Timing and good record keeping are important for sugarbeet weed control Weeds not controlled prior to soybean emergence can reduce yield When to switch to a short season hybrid Soil nitrate test for corn in Michigan Early season considerations for managing SDS Soil fertility, pH, texture and nematodes

(14 May)
the Bulletin: Pest mgmt & crop developmt information for Illinois
Univ. of Illinois
Applying Soil-Residual Herbicides After Corn Planting and Emergence Problems with Corn Stands

(12 May)
Crop-Pest Ontario
Ontario Ministry of Agriculture, Food & Rural Affairs
Frost Heaving of Alfalfa Herbicide Resistant Weed Testing from 2008 Season Did Soybean Aphids Overwinter Here? Trends in Fertilizer Use 1981 - 2006 Western Bean Cutworm Trap Participants Still Needed Another Armyworm Year? Skip the Glyphosate Burndown and you Could Lose 11% Yield in No-till Soybeans Wheat Disease Pressure Low for Now Aphanomyces in Alfalfa Survey! Request for Soil Samples Glyphosate Resistant Giant Ragweed Suspected in Ontario

(12 May)
Penn State Field Crop News
Penn. State Univ.
Assessing Corn and Soybean Stands Spring Pastures Can Bring Bloat Cereal Leaf Beetle No-tilling Corn After First Cutting Alfalfa: Remember Glyphosate Can be Used Pre-harvest Weed Control in Grass Hay and Pasture Pest Updates: Cutworm — Slugs

(12 May)
Considerations for Late-Planted Corn in Minnesota
Jeff Coulter, Univ. of Minnesota

(12 May)
Kentucky Pest News
Univ. of Kentucky.
Soybean Rust Update Wheat Disease Update A Wet Spring, Delayed Planting and Corn Borers

(12 May)
USDA Reports Confirm Expectations, Favor Corn Prices
Darrel Good, Univ. of Illinois

(12 May)
Einstein's Theory of Relativity as it Relates to Soil Moisture
Bob Nielsen, Purdue Univ.

(11 May)
Ohio C.O.R.N. Newsletter
The Ohio State Univ.
Cereal Leaf Beetle Thresholds The Good, Bad, and Ugly 2009 Planting Season ”Mudding in” Corn Fields for Soybeans – be sure that it is not too many years in a row Soybean Rust Status in the Southern US Alfalfa Weevil Update

(9 May)
Wisconsin Crop Manager Newsletter
Univ. of Wisconsin
Frost Injury to Alfalfa Don’t Forget about Horseweed Alfalfa winter survival in spring 2009 Sampling and Managing Soybean Cyst Nematode

(9 May)
Nebraska Crop Watch Newsletter
Univ. of Nebraska.
Scout for Early Soil Insect Problems in Corn Nebraska Corn Planting Progressing Well How Insects Can Influence the Timing of Weed Management in Soybeans Control of Problem Weeds in Roundup Ready Soybean with Soil-Applied Herbicides Manage Herbicides to Avert Glyphosate Resistance Early Alfalfa Cut Offers Some Benefits Scout Now for Alfalfa Weevil Feeding Selecting Summer Annual Forage Grasses Cutting Excess Spring Pasture For Hay USDA Offers Grassland Reserve Program Sign-up Preseason Irrigation Check-up Can Save Energy, Cut Costs

(9 May)
Missouri Integrated Pest & Crop Management Newsletter
Univ. of Missouri
Wheat Disease Update True Armyworm Larvae Emerge in Southwest Missouri Seed Decay and Seedling Blights of Corn

(9 May)
Michigan Field Crop Team Advisory Alert
Michigan State Univ.
Unusual cereal leaf beetle numbers Flexstar GT: A new herbicide labeled for postemergence use Roundup Ready soybean No-till Roundup Ready soybean: What you need to know Mark your calendars for the MSU Weed Tour Delayed preemergence and early postemergence herbicide applications in corn Wheat disease management resources available on-line Sprayer calibration is important Scout for black cutworms Alfalfa weevils are making a comeback this spring Dealing with winter injury in alfalfa fields

(9 May)
the Bulletin: Pest mgmt & crop developmt information for Illinois
Univ. of Illinois
My Last Article Time to Scout for Wheat Insects: Pests and Predators Are Present Large Weeds + Wet Fields = Challenging Conditions Wheat Scab Alert and Results of 2008 Illinois Wheat Fungicide Trials Is It Too Late for Spring Forage Seedings? Time for Alfalfa Watch Have You Considered Reducing Your Soybean Seeding Rate This Year? Have I Lost My Nitrogen This Spring? Some Nitrogen Placements Can Cause Plant Injury Planting Delays: Considering the Switch from Corn to Soybean

(6 May)
Penn State Field Crop News
Penn. State Univ.
Weather and Pre/Early Post Weed Control Considerations for Corn Soil Crusting Updates on Alfalfa Weevil and Black Cutworm Soybean Seed Quality Considerations Wheat Production Decisions Should I Be “Mudding in” My Corn? Haylage Production: Understanding the Process and Potential Benefit of Wide Swathing

(5 May)
Germination Events in Corn
Bob Nielsen, Purdue Univ.
Published before, but good refresher

(5 May)
The Emergence Process in Corn
Bob Nielsen, Purdue Univ.
Published before, but good refresher

(5 May)
Root Development in Young Corn
Bob Nielsen, Purdue Univ.
Published before, but good refresher

(5 May)
Kentucky Pest News
Univ. of Kentucky.
Increased Risk of Foliar Diseases in Late-Planted Corn

(5 May)
Iowa Integrated Crop Management Newsletter
Iowa State Univ.
A Harsh Winter for Bean Leaf Beetles Pay Attention to Soil Crusting After Heavy Rain Events

(4 May)
Ohio C.O.R.N. Newsletter
The Ohio State Univ.
Managing Leaf Diseases of Wheat with Fungicides Adjusting Corn Management Practices for a Late Start Late tillage – spray the field first? Corn planted with no herbicide applied? Don’t panic Nitrogen Timing and Placement Early in the Year A Response to Comments made about a Recent Article on Pelletized Lime Planting Date Concerns for 2009 Soybeans Are there substitutes for 2,4-D ester in soybean burndown programs

(4 May)
Corn and Soybean Prices Diverge
Darrel Good, Univ. of Illinois

(2 May)
Nebraska Crop Watch Newsletter
Univ. of Nebraska.
Wheat Spindle Streak Mosaic Virus Confirmed Wheat Fungicide Update Scout Winter Wheat Weekly for Insect Pests New Soybean Inoculants Extend Options, but Often Not Necessary Scout Early Emerging Soybeans for Bean Leaf Beetles Assessing And Reacting To Alfalfa Winterkill Begin Scouting for Alfalfa and Clover Leaf Weevils Q & A: Sharing Irrigation Costs Among Landowners Nebraska Feral Hogs Pose Economic, Health Threat

(2 May)
Corn & Soybean Science Newsletter
Univ. of Kentucky
Corn Planting Date Effect on Yields Avoiding Sidewall Compacting During Late Corn Planting Avoiding Anhydrous Ammonia Seedling Injury Fertility Considerations/Strategies for Late Planted Corn Planting Dates Affect Corn Insect Management Increased Risk of Foliar Diseases in Late-Planted Corn Late Corn Planting Usually Results in Faster Corn Development Soybean Planting Delays

(1 May)
Purdue Pest & Crop Newsletter
Purdue Univ.
Black Cutworm Moth Catches Increase Alfalfa Weevil Management Guidelines and Control Products Armyworm Moth Flights Predicting Risk of Fusarium Head Blight (Scab) in Wheat Wind Damage in Wheat can Mimic Disease Sugar Maple in No-Till Fields What Do We Do About the Yellow Fields? Corkscrewed Corn Seedlings Late Planting & Relative Hybrid Maturity Decisions

(1 May)
Wisconsin Crop Manager Newsletter
Univ. of Wisconsin
Predicting When Soybeans Will Emerge Purple Deadnettle in No-till Herbicides to suppress smooth brome Spring Removal of No-till Alfalfa in Wisconsin

(1 May)
Michigan Field Crop Team Advisory Alert
Michigan State Univ.
Mustang Max on Michigan beets Keeping stacks straight: Part II, Tips to reduce trait torture Keeping corn stacks straight Lesion nematodes in corn, a concern to Michigan’s soybean growers? Soybean aphid update Fertilizing soybeans in Michigan Watch winter wheat growth prior to applying herbicides Stem nematodes on alfalfa, an enemy Exercise patience in deciding when to commence field operations Effects of cutting back on potassium Are there benefits to early fungicide applications on wheat? Managing heaved alfalfa fields

(1 May)
the Bulletin: Pest mgmt & crop developmt information for Illinois
Univ. of Illinois
Alfalfa Weevils May Need to Be Controlled in Some Fields Late Planting of Corn and Potential for Insect Problems Corn Flea Beetle: Expectations for Stewart's Wilt in 2009 Weeds at the Time of Planting University of Illinois Weed Science Field Research Tours Reviewing the 2009 Corn & Soybean Classics, Looking Ahead to 2010 Remembering a Weed Science Colleague Thoughts on the Slow Start to Planting, Version 2009 April Showers Bring May . . . Planted Soybeans, We Hope!

(1 May)
The Magic Show Is Back In Town
George Rehm, Univ of Minnesota