Tuesday, October 02, 2012
arkansas_wheat_field

Indiana: Specialist Warns Wheat Farmers To Observe Fly-Free Planting Dates

AgFax.Com - Your Online Ag News Source


Although many U.S. crop fields already have been harvested because of the drought, farmers still need to follow fly-free dates when planting wheat to avoid Hessian fly infestations in their winter crops, says a Purdue entomologist and Agricultural Research Service scientist.

Those dates already have passed in the northern Midwest, but can be as late as the end of October in the southern U.S. Indiana’s fly-free dates are as late as Oct. 9 in the southern part of the state and Oct.6 in Ohio.

 

“It’s imperative that we don’t jump the gun,” Brandi Schemerhorn said. “It’s tempting given the open fields early in the season to plant wheat early, but this could lead to disastrous consequences. The fly-free date is our main protection to avoid an infestation by the spring brood.”

Hessian flies are small pests that are mosquito-like in appearance. There are at least two generations each year, one in fall and another in spring. The fall generation is more important economically because the larvae feed on green plant growth, including developing wheat crops.

Females can lay 150-300 eggs in a short time on the sides of wheat plants. The larvae will crawl downward into the whorl and begin feeding. Farmers inspecting their fields often miss the flies because they are hidden at the bottom of the plant.

“Just because you don’t see them in the field doesn’t mean they’re not there,” Schemerhorn said.

While the pests never enter the stem, they damage the plant so severely that infested stems usually break once the heads begin to fill. This, along with stunted growth caused by the flies, can lead to reductions in yield.

Schemerhorn said planting after the fly-free date is the best way to prevent infestation. After these dates, most adult flies will die before the wheat emerges and therefore will not lay more eggs.

“Even if you spray insecticide, that’s not going to get rid of them because the chemicals can’t reach the larvae,” she said.

Farmers observing the fly-free date for their regions could also help with other problems that their crops may experience.

“It has been shown that following the fly-free date helps reduce other wheat disease problems and reduces winter-kill from excessive growth,” Schemerhorn said.

She offered other Hessian fly management tips:

*Clear fields of volunteer wheat. Flies can lay eggs in the early plants and rapidly build up their populations. Removing volunteer wheat before the emergence of the fall brood greatly reduces the insect reservoir for a spring infestation.

*Plant resistant varieties of wheat, even after the fly-free date. Warmer temperatures in the late summer and early fall may extend fly activity beyond the normal fly-free date.

*After harvesting wheat in the spring, plow under the stubble instead of burning. Plowing fields after harvest destroys the fly. It buries adult flies and limits the number that can escape from the ground.

The Hessian fly is always around, but in some years the damage is more widespread than others. Schemerhorn said it’s always a problem in the southeastern United States, but damage in the Midwest varies from year to year. In Indiana, the female lays its eggs from August to October.

Tags: , ,


Leave a Reply

Name and Email Address are required fields. Your email will not be published or shared with third parties.

Sunbelt Ag News

    Keith Good: Federal Reserve Beige Book Released – Ag Economy Observations3-4

    DTN Livestock Close: Large Sell-Off3-4

    Grain TV: Soybeans Hit by Double Whammy3-4

    Doane Cotton Close: Acreage May Not Drop, Market Turns Negative3-4

    Kansas: Sumner County a Primary Natural Disaster Area3-4

    Arizona: 4 Counties Declared Natural Disaster Areas3-4

    Oil Exports Reach Record High3-4

    New Mexico: 9 Counties Designated Natural Disaster Areas3-4

    California: Imperial County Designated a Natural Disaster Area3-4

    DTN Cotton Close: Record High Ending Stocks Outside China3-4

    Propane Stocks Decrease3-4

    Gas Prices Skyrocket3-4

    Diesel Prices on the Rise3-4

    DTN Grain Close: Focus Turns to South America3-4

    Georgia: Quick Fix, Patching up “Bot Cankers” on Pecan Trees3-4

    DTN Livestock Midday: Cash Premium and Short Covering Support3-4

    Markets: How Will Closing the Trading Pits Affect Performance?3-4

    Planting: Soybean, Corn Planter Choices. What’s Right for You? – DTN3-4

    DTN Grain Midday: Pressure from South America, China May be Out of U.S.3-4

    The “Battle” of Acres, Predicting Corn and Soybean Ratios – DTN3-4

    Nebraska: Value of Farmland Drops3-4

    DTN Cotton Open: Sales Dip, All Eyes on China3-4

    DTN Livestock Open: Bids Murky, High Trade Could be Delayed3-4

    DTN Grain Open: Warm Weather Expected in Winter Wheat Areas3-4

    Soybeans: How Low Can Planting Rates Safely Go? – DTN3-3

    Japan Reduces Hurdles to Pacific Trade Deal Progress – DTN3-3

    New Videos Shows Weeds Time-Lapsed Reaction to Herbicides3-3

    DTN Fertilizer Trends: Northern Farmers Glad for Lack of Delays3-3

    Pennsylvania: 4 Weed Resistance Workshops, March 17-203-3

    North Carolina: Farming on Leased Land Workshop, Mills River, April 93-3

    USDA: Weekly National Peanut Prices3-3

    Cotton: Topguard Gets Full Registration, Pay Attention to Use Rates3-3

    Crop Insurance: Soybean Projected Prices Down 10¢ from 20143-3

    Immigration Reform: House E-verify Not Enough, Says Ag Coalition3-3

    Fertilizer Management: Watch Out for Burns from In-Furrow Starters – DTN3-2

    Keith Good: Ethanol Profits; California Rains – Just Drop in the Drought Bucket3-2

    Herbicide-Resistance: 12 Steps to Keep Weeds Away3-2

    AFB Grain-Soybean Close: Negative News Day3-2

    AFB Cotton Close: Slightly Mixed3-2

    AFB Rice Close: Market Mostly Higher3-2

    Hogs: Price Collapse – ‘Buy the Rumor, and Sell the Fact.’ – Podcast3-2

    DTN Fertilizer Outlook: Harsh Winter to Keep Prices Flat3-2

    Corn Planting: New Technology Worth the Money – DTN3-2

    Grain Sorghum: Great Rotation Crop – Acres Growing in Mid-Atlantic Region3-2

    Arkansas: Tyson Gives $5M to Help Fund Center for Ag Sciences3-2

    Keith Good: Crop Insurance Guarantees to Fall; California Drought “Catastrophic”;3-2

    Rose on Cotton: Gin Show Visit – High Quality Cotton Still in Demand2-28

    Trade Promotion Authority: Vilsack Whips Up Support2-27

    Ethanol: Corn Growers Defend RFS – DTN2-27

    Planting: New Rigs at the Top of Their Game – DTN2-27

    Rice Market: Only Feeble Signs of Price Improvement2-27

    Wheat: Study Sheds Light on Stem Rust Disease in Africa and Asia2-27

    Nebraska: Can You Shoot an Uninvited Drone?2-27

    Turkey Hunting: Tips for the Spring Gobbler Season2-27

    Cotton Base Acres Count as Generic Base Under Farm Bill2-27

    Soybeans: Monsanto Plans In-Field Training for Roundup Ready2 Xtend2-27

    DTN Cotton Close: Texas Could See More Freezing Rain, Snow2-27

    Shurley on Cotton: Improvement Slows Down, but What Else Did We Expect?2-27

    Peanut Stocks and Processing: Utilization Up 7%2-27

    USDA: Peanut Price Highlights2-27

    Weekly Cotton Market Review – USDA2-27

    Keith Good: Chinese Corn Imports Not Likely to Recover; Food Stamp Debate Rages On2-27

    Georgia Celebrates National Peanut Month with PB&J Day, Donations2-27

    U.S. Grain Transportation: West Coast Ports Return to Normal2-27

    Pinnacle’s Sanders in 9 Southern States with Newest Acquisition2-27

    Sunbelt Ag Events

     

    About Us

    AgFax.Com covers agricultural trends and production topics, with an emphasis on news about cotton, rice, peanuts, corn, soybeans, wheat and tree crops, including almonds, pecans, walnuts and pistachios.

      

    This site also serves as the on-line presence of electronic crop and pest reports published by AgFax Media LLC (formerly Looking South Communications).

        

    Click here to subscribe to our free reports.

      

    We provide early warnings and confirmations about pests, diseases and other factors that influence yield. Our goal is to quickly provide farmers and crop advisors with information needed to make better and more profitable decisions.

         

    Our free weekly crop and pest advisories include:

    • AgFax Midsouth Cotton, covering cotton production and news in Alabama, Arkansas, Louisiana, Mississippi, Tennessee and Missouri.

    • AgFax Southeast Cotton, covering cotton production and news in Alabama, Florida, Georgia, North Carolina, South Carolina and Virginia.

    • AgFax Southwest Cotton (new for 2013!), covering cotton production and news in Texas, Oklahoma, Kansas and New Mexico.

    • AgFax West (formerly MiteFax: SJV Cotton), covering California cotton, alfalfa, tomatoes and other non-permanent crops in California's Central Valley.

    • AgFax Rice covering rice production and news in Arkansas, Louisiana, Mississippi, Missouri and Texas.

    • AgFax Peanuts, covering peanut production in Alabama, Arkansas, Florida, Georgia, Louisiana, Mississippi, North Carolina, South Carolina, Texas and Virginia.

    • AgFax Southern Grain: covering soybeans, corn, milo and small grains in Southern states.

    • AgFax Almonds, covering almonds, pistachios, walnuts and other tree crops in California's Central Valley.

    • AgCom 101, providing guidance to ag professionals involved in social media.

    Our newsletters are sponsored by the following companies: FMC Corporation Chemtura Dow AgroSciences.

          

    Mission statement:

    Make it as easy as possible for our community of readers to find and/or receive needed information.

              

    Contact Information:

    AgFax Media. LLC

    142 Westlake Drive Brandon, MS 39047

    601-992-9488 Office 601-992-3503 Fax

    Owen Taylor Debra L. Ferguson Laurie Courtney

          

    Circulation Questions?

    Contact Laurie Courtney +