ASK THE AGRONOMIST BLOG

Stine’s Ask the Agronomist blog is your source to the latest information from our expert team, including advice and insight on field practices, product recommendations, planting and harvest updates, new technologies, crop management, innovative research and information about how to keep your farm operation running smoothly year round. 

  • Tony Pleggenkuhle Image

    When Scouting Fields, Take Notes for Next Year

    July 02, 2013

    Posted by Tony Pleggenkuhle in Crop Management

    The warm, wet conditions found in Region 10 give way to an unfortunately ideal environment for certain pest and disease pressures, including wireworm, seedcorn maggot, rhizoctonia and phytophthora. Keep good record of where these pests are found so that you can prevent yield loss to them in subsequent years. Selecting a variety with good disease tolerance is the best control for phytophthora and rhizoctonia, while a seed-applied insecticide is an ideal way to prevent damage from wireworm and seed corn maggot.

    Another area of concern is herbicide carryover, particularly in soybeans. Last year's dry summer and fall has caused a delay in the breakdown of many of the herbicides we use. The wet spring has resulted in stunted, less vigorous plants with a reduced ability to metabolize carryover herbicides. When coupled with the fact that many soybean plants are switching to their nodal root system for their primary source of nutrients, I'm beginning to see quite a few fields with herbicide carryover concerns. Whether it's the heart-shaped soybean leaf caused by acetachlor or the bleached look of a photosynthesis inhibitor, these symptoms are beginning to show up in quite a few soybean fields, especially in the overlaps. I don't expect to see much yield loss due to these carryover situations, but it does add another stressor to the plant at a critical time.

    White mold also thrives in seasons of high moisture levels, coupled with high temperatures. Keep an eye out for it later in the season, particularly in soybeans. You can recognize white mold by dead leaves on top of bushy plants, and as it progresses, a white mold appears on the stems. The good news is, many still have time to lessen the damage from this pressure with fungicide. The best time to spray is during R2-R3 stage, when pods first develop.

    To learn more about how you can treat and prevent pest and disease pressures in your field, contact me or a Regional Sales Agronomist in your area.

  • The Next Era of Soybean Performance is Coming
    Brian Hartman Image

    The Next Era of Soybean Performance is Coming

    March 12, 2013

    Posted by Brian Hartman in Products

    Giving growers options to choose the right seed for their unique operations is part of Stine’s rich tradition, which is why we’re so excited about a new soybean system that’s anticipated to be available to growers for the 2015 growing season, pending regulatory approvals.

    The Balance GT™ Soybean Performance System was officially unveiled at the Commodity Classic convention and trade show in Kissimmee, Fla. Stine is among the first seed companies to commit to offering U.S. soybean growers Balance GT soybeans, which feature a dual herbicide tolerant trait stack with tolerance to both glyphosate and isoxaflutole, the active chemistry in Balance® Bean herbicide.

    The foundation for Balance GT soybeans is elite, high-performing germplasm with performance equal to or better than many other soybean varieties that are currently available. Tens of thousands of hand pollinations were made and thousands of lines tested to come up with the 56 high-yielding elite soybean lines that have been selected for commercial release. Two hundred twenty-five lines will be further evaluated and are anticipated for release after 2015, pending regulatory approval.

    The beauty of the Balance GT system is that growers will have the flexibility to use both glyphosate and isoxaflutole during burndown, pre- or post-emergence for broad spectrum control of both grasses and broadleaf weeds.

    The Balance GT system is the brainchild of MS Technologies and Bayer CropScience LLC, the same group that developed the LibertyLink® system. In fact, genetics containing the Balance GT trait will be the foundation for a future triple-stacked trait with tolerance to glyphosate, isoxaflutole (Balance Bean) and glufosinate, the active chemistry in LibertyLink. Stine intends to license that soybean as well.

    We know that growers want options to achieve strong yields with effective weed control. Balance GT soybeans will be one more available tool to help combat weeds and maximize per acre profits. We’ll be sharing more information about Balance GT soybeans as it’s available. In the meantime, if you’d like to learn more, you can visit www.balancegtsoybeans.com.

  • Hope on the Horizon for Weed Resistance
    Bill Kessinger Image

    Hope on the Horizon for Weed Resistance

    January 17, 2013

    Posted by Bill Kessinger in Crop Management

    Some growers are all too aware that Palmer Amaranth is an increasingly worrisome weed for many fields. Causing severe issues in the south, the glyphosate and ALS-resistant weed is making its way further north, with no signs of slowing down on its own. The weed is very aggressive, reportedly growing up to three inches per day, and producing millions of seeds per plant. In the Pigweed family, Palmer Amaranth is related to Waterhemp, a weed we are all too familiar with. Palmer Amaranth is relatively new to growers in Indiana, and now has a toehold in several counties across northern regions of the state. The reason for the quick geography jump has not been determined. Some speculation believes it could have arrived with cotton hulls from the south used in some dairy rations. It could have arrived with some cover crop seed, or possibly mechanically. How it actually got here will probably never be determined, but what we do know is that northern Indiana does have the glyphosate and ALS-resistant strain of this weed.

    Fortunately, there is hope for growers looking for a solution. The LibetyLink system will be a very important tool to combat Palmer Amaranth and other glyphosate-resistant weeds. Also, in the near future, more options will be available to growers as new technologies are on the horizon. The Enlist E3 Weed Management System, another new soybean system featuring isoxaflutole and the Roundup Ready Xtend system with dicamba will give growers options of multiple modes of action with some offering residual control. My advice is to learn about the new technologies, and in the meantime, take advantage of what we currently have available by alternating the modes of action in your system and utilizing pre-emerge herbicides. The best way to combat hard-to-control weeds is early prevention.

    Don’t hesitate to contact me or a Regional Sales Agronomist in your area to learn more about LibertyLink for the 2013 spring growing season. For more information on the new systems coming down the road, take a look at Directory of Agronomy Brian Hartman’s insight on the new technologies.