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. 

  • Mike Smith Image

    Soybean Diseases and Management Issues Throughout the Corn Belt

    July 18, 2018

    Posted by Mike Smith in Crop Management

    The last several weeks we’ve seen soybean fields throughout the Midwest under assault. Indiana and Illinois are dealing with historic levels of phytophthora and fusarium (sudden death syndrome). The southern Corn Belt has been dealing with soybean cyst nematodes and dry weather. The central Corn Belt is experiencing extremely wet, saturated conditions that have created difficult growing conditions.

    With all of these issues, how should growers approach the challenges that this year brings to produce a viable, healthy crop?

    The first step is to spend time in fields observing exactly what is happening with the crop. One mistake growers make is when they see their neighbors spraying and automatically think that they should jump in the sprayer as well. Not all issues can be addressed through chemical means, and knowing the condition of one’s own crop is paramount in designing a course of action.

    The second step is to rely on research and not marketing. It is tempting to see a problem and want to apply the newest, greatest product to promote pod fill and retention; however, those products are not always warranted and certainly not always financially feasible. Understanding thresholds for insects and diseases can provide just as much return on investment as spraying the right insecticide or fungicide in a timely manner.

    The third step should always be experimentation. I think it is always a good idea to leave an untreated check, or a treated check, in a field and mark the check and then harvest separately. This will provide you with on-farm knowledge about the rescue treatment and how the practice actually worked on your farm. Having this information can prove to be invaluable in subsequent years when the decision needs to be made on a larger scale.

    The final thing I encourage is to remember these issues to help make decisions for next year’s crop. For example, a field that had SDS in 2018 should become a candidate for rotation in 2019 and late planting in 2020. Recognize that some issues are dependent on weather. However, water mold type issues and SCN are field-level problems that do not go away with the passing of time. Learn how to better manage these soils to mitigate the annual problems of these types of pests.

    If you need help in this process, contact your Stine regional sales agronomist for strategies that can help you maximize this year’s crop and plan for a bigger harvest in the future.

  • Stefanie Ray Image

    Phytophthora Root Rot Affecting Illinois Soybeans

    July 04, 2018

    Posted by Stefanie Ray in Crop Management

    Recent heavy rains have caused problems for farmers in south central Illinois; we’re seeing phytopthora root rot affecting soybean fields. Phytophthora is a soil-borne water mold common in fields that are saturated and not well drained. Phytophthora can affect the plant at two different stages; one specifically targeting the stem. This happens before the root system is developed and during the VE/emergence stage. We call this the seedling blight phase, which can cause damping off. The second affects the roots of larger, more developed plants. The fungus infects the roots and grows into and along the root cells of the plants, which is what we are seeing right now.

    Phytophthora root rot can be fairly easy to detect when dealing with the root rot stage. The roots will be a discolored brown and root nodulation will be minimal, causing a chlorotic nitrogen deficient plant. The disease will move up the stem from the soil line and dark to reddish brown lesions will continue up the stem. The dead tissue quickly becomes soft and water soaked. The plant will soon look wilted and chlorotic (yellowing) leading to death of the plant. Sometimes a few plants will be affected and other times large areas of the field will be affected. This disease generally affects individual plants within a row (one out of seven to 10 plants may be affected.) Infected plants will eventually wilt and die, with the leaves still intact but delivering devastating yield loss. 

    If your fields are affected by phytohphora root rot this year, there’s really nothing you can do about it this growing season. However, growers can plant varieties with phytophora resistance along with seed treatments to protect seedlings from the disease in future years. Stine has an outstanding lineup of Rps 1a/1c/3a phytophthora root rot-resistant varieties in its lineup for 2019. Additionally, our Stine XP seed treatments contain fungicides to protect your seed investment from unwanted soil-borne pathogens. Stine XP Complete, Stine XP-F&I and Stine XP-F all boast resistance to phytophthora spp.

    To learn more about phytophthora root rot detection and prevention, contact your local Stine sales agronomist.

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    Superior Genetics, Maximum Yields: Stine® GT27™ and LibertyLink® GT27™ Brand Soybeans

    June 27, 2018

    Posted by Stine Seed in Products

    Stine is uniquely positioned to provide the latest innovative products on the market, giving growers new choices for weed management, including our lineup of Stine® GT27 and LibertyLink® GT27 soybeans. Combined with the high-yielding, elite genetics and the industry’s most sought after traits for weed control, Stine GT27 and LibertyLink GT27 offer growers powerful performance and outstanding crop safety.

    Stine GT27
    Stine GT27 soybeans are derived from the high-yielding, elite soybean genetics that provide the yields growers have come to expect from Stine. In fact, Stine GT27 soybeans have demonstrated performance equal to or better than many of the varieties that growers currently plant.

    The Stine GT27 platform builds upon current glyphosate-based programs with the option to utilize a new HPPD/Group 27 herbicide (once approved) for the benefit of two sites of herbicide action. This combination will allow growers to combat a full spectrum of broadleaf weeds and grasses, including glyphosate-, triazine-, PPO- and ALS-resistant weeds. Both of the herbicide components are non-volatile chemistries, reducing the risk for off-target movement and giving growers additional peace of mind.

    LibertyLink GT27
    Stine LibertyLink GT27 soybeans are the next evolution of the GT27 platform. A triple-stacked herbicide trait, Stine LibertyLink GT27 brand soybeans offer exceptional yield potential combined with tolerance to three unique sites of action — glyphosate, Liberty® and a new HPPD/Group 27 herbicide for soybeans.

    The LibertyLink GT27 trait is the first commercially available soybean trait package that offers built-in tolerance to both glyphosate and glufosinate, which means that growers who plant Stine LibertyLink GT27 soybeans will benefit from unparalleled flexibility in weed management options. This triple-stacked technology offers growers the option to use multiple pre- and post-options, plus built-in residual control, for full-season control across different growing environments.

    Stine is pleased to offer a complete lineup of Stine GT27 and LibertyLink GT27 in a range of maturities. To learn more about our lineup, reach out to your local Stine sales representative.

    Note: One characteristic of HPPD/Group 27 chemistries is they provide outstanding residual control, meaning that the active ingredients remain active in the soil for a period of time after application. However, the amount of HPPD/Group 27 chemistry that remains active in the soil into the next growing season can vary, and in some cases could affect soybeans that are susceptible to the HPPD/Group 27 chemistry. Stine GT27 and LibertyLink GT27 soybeans include built-in tolerance to HPPD/Group 27-based herbicides, providing soybean growers with an additional measure of protection against HPPD-Group 27 carryover.