Friday, June 14, 2013

Texas: Cotton Squaring; Soybeans at Pre-Bloom – Calhoun, Refugio & Victoria Counties

AgFax.Com - Your Online Ag News Source


Cotton

Cotton fields range from squaring to mid-bloom. Blooming cotton has from 7-9 nodes above white flower. We are finding cotton fleahoppers and verde plant bugs in cotton fields and I expect to begin seeing evidence of stink bug feeding in cotton fields that have been blooming for a couple of weeks.

  • Monitor squaring cotton for cotton fleahopper and verde plant bug. Treat when numbers exceed 15 per 100 plants.
  • Blooming cotton is generally considered safe from cotton fleahoppers.
  • Begin looking for evidence of stink bug feeding in cotton 10 days after first bloom using an economic threshold of 20% bolls with evidence of feeding. Soybeans Soybean fields range from pre-bloom to early pod fill. Fields with pods should be checked for stink bugs suing either a drop cloth or sweep net. I use a sweep net when checking soybeans because I find it covers more ground and is quicker but either method is similar in locating stink bug populations. Treat soybeans when they exceed 36 stink bugs per 100 sweeps or 1 per foot of row with drop cloth. Reduce the threshold to 24 per 100 sweeps or 2 per 3 feet if red-banded stink bug is a majority of species found.

Grain Sorghum

Sorghum fields range from pre-bloom to soft dough stage. Blooming fields should be monitored for sorghum midge. The populations of this insect should be increasing as the season progresses. Continue to scout fields for stink bugs and headworms using a bucket.

We are finding low to above threshold populations of stink bugs and headworm in local fields. The Economic Threshold for sorghum insects is dependent of the cost of control, crop value and number of heads per acre. I have found the number of sorghum per acre in fields along the Texas Coast range from 40,000 to 90,000 per acre.

Check your field to determine how this affects the ET for pests in your sorghum. If you assume $8 cost of control, $7/cwt and 60,000 heads per acre, the ET is 0.98 medium worms, 0.19 large worms and 0.58 stink bugs per sorghum head.

Soybeans

Soybean fields range from pre-bloom to early pod fill. Fields with pods should be checked for stink bugs suing either a drop cloth or sweep net. I use a sweep net when checking soybeans because I find it covers more ground and is quicker but either method is similar in locating stink bug populations. Treat soybeans when they exceed 36 stink bugs per 100 sweeps or 1 per foot of row with drop cloth. Reduce the threshold to 24 per 100 sweeps or 2 per 3 feet if red-banded stink bug is a majority of species found. Minute Pirate

Minute Pirate Bug

If you beat a few sorghum heads into a bucket, you will likely find some very small black and white insects. Minute Pirate Bugs are tiny (1/8 inch) black bugs with white markings at the base of the front wings (hemelytra), resulting in a band-like appearance across the body when wings are at rest. Wingless immature stages (nymphs) are orange and similar in size and shape to cotton fleahopper nymphs. These are some of the more voracious predators we find in our crops and are considered to be very beneficial.

Current field projects include:

• Sorghum planting rate in Refugio and Calhoun Counties

• Aflaguard use in corn for reducing aflatoxin in Refugio County

• Thrips control with foliar insecticides in Victoria County

• Fungicide use in grain sorghum in Victoria County

• Cotton Fleahopper control with foliar insecticides in Calhoun County

Looking for locations for the following trials:

• Stink bug and headworm control in Sorghum

• Fall armyworm control in bermudagrass pastures

I am interested in conducting research to solve pest management issues on your farm. Call me if you have something I should look into. 361-920-1138


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

    DTN Dried Distillers Grain: No Rally in Prices Expected10-31

    DTN Livestock Open: Cattle Contracts to Begin Firm10-31

    North Carolina: Irrigation Conference Slated Nov. 6 in Raleigh10-31

    DTN Grain Open: Soybeans Start Out Higher10-31

    Keith Good: Turkey Investigates U.S. Cotton Imports, Demand May Suffer10-31

    Grain TV: Markets Hit by Selling Pressure10-30

    DTN Livestock Close: Cattle Complex Enjoys Short-Covering Rally10-30

    Doane Cotton Close: Strong Exports Continue10-30

    ELS Cotton Competitive Payment Rate Is Zero10-30

    AFB Grain-Soybean Close: Strong Exports Unable to Support Prices10-30

    AFB Cotton Close: Futures Retrace Gains10-30

    AFB Rice Close: Futures Turn Strongly Lower10-30

    Biodiesel: 2014 A Tough Year for Producers10-30

    DTN Cotton Close: Reverses off New High to End Lower10-30

    Kansas Officials Point Out Flaws in Clean Water Act – DTN10-30

    DTN Grain Close: Rally Pauses as Prices Backtrack10-30

    Future Farmers Face Major Challenges, Ag Sec Tells FFA – DTN10-30

    DTN Livestock Midday: Sharp Losses Develop in Hog Futures10-30

    U.S. Grain Transportation: Barge Rates Remain Well Above Average10-30

    Mississippi: Fall Tests for Nematodes Help Keep Crops Healthy10-30

    DTN Grain Midday: Trade is Flat to Lower10-30

    DTN Cotton Open: Futures Tick Near Unchanged10-30

    California’s SJV Included in Report on Soil Loss to Salt Damage10-30

    U.S. Energy: Gas Prices Drop to Lowest Since December 201010-30

    Gasoline Prices: Average Drops 6 Cents10-30

    Propane Stocks: Down 1.3M Barrels10-30

    Diesel Prices: Decrease by 2 Cents10-30

    New Research Study Shows the Value of Neonics10-30

    Texas: Pecos County Pesticide Workshop, Fort Stockton, Nov. 1810-29

    Florida: Sugarcane Field Day, Quincy, Nov. 310-29

    Texas Wildlife: New Deer Management App Just in Time for Deer Season10-29

    Peanut Stocks: Utilization Up 6%, Stocks Total 1.2B Pounds10-29

    Georgia: Brooks County Clean Day Rescheduled to Nov. 1210-29

    AgFax Cotton Review: U.S.’s High Quality Offers Market Resilience10-29

    Georgia: USDA Designates Early County Primary Natural Disaster Area10-29

    Why Chinese Consumers Pay More for Non-GMO Soy Oil – DTN10-29

    DTN Fertilizer Outlook: Demand May Fall with Crop Prices10-29

    Grain Market Math Test, Part 2 — DTN10-29

    Welch on Wheat: Crop Condition Right on Average10-28

    Welch on Grain: Corn Harvest Runs Behind but Conditions Remain High10-28

    USDA: Weekly National Peanut Prices10-28

    Mississippi Wild Hogs: Trapping Is the Best Control Method10-28

    DTN Fertilizer Trends: Stubborn Prices Pose Dilemma for Grain Farmers10-28

    What Happens to Corn Prices When Stock Market Falls? — DTN10-28

    Georgia Peanuts: Spider Mite Damage Rises in Dry Weather10-28

    Vilsack: COOL Appeal Decision to be Made in January — DTN10-27

    Livestock: Record Cattle Prices, Again and Again10-27

    AgFax Rice Review: Defense Against Arsenic; Japan’s Modernization10-27

    Mandatory COOL: Detrimental to Trade, No Easy Solution — Economist10-27

    Group Works to Improve Fertilizer Efficiency — DTN10-27

    Shurley on Cotton: Lackluster Week Closes on High Note10-27

    China’s U.S. Corn Rejections Prompt New Business — DTN10-27

    Flint on Crops: Mississippi Snow Arrives in October10-27

    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