Field Note: Scouringrush Management
Scouringrush is generally found in moist areas around marshlands and margins of ponds or lakes. These problem weeds can invade wetter low lying areas of fields and spread very quickly. Scouringrush can be especially problematic in pasture and hay fields as it produces alkaloids that can be toxic to livestock, especially horses.
Control of Scouringrush can be difficult, as it spreads through both rhizomes and spores. The top growth can be easily controlled through mechanical tillage or by burning, but due to it’s deep rhizomes, it re-establishes very quickly. When cut, the tuberous root system can become a new plant, making tillage a potentially less viable option unless continuous tillage is used. Drying out the areas impacted by Scouringrush seems to be very effective through tile drainage or continuous tillage.
Chemical control options for Scouringrush include applications of 2,4-D often. Thankfully, it generally is quickly outrun by row crops and in grass crops can be suppressed by applications of nitrogen, which Scouringrush doesn’t respond to, but grass crops respond quickly.
We are rapidly approaching the end of the 2020 growing season. After the combine is done and tillage has started, there is a very important step to consider: soil sampling. Soil health and fertility rank high on the totem pole when it comes to high productivity. Soil sampling allows us a portal into the world … Continue reading Fall Soil Sampling: Maximize Your Profit PotentialRead More >
With farming, you get one chance every year to pick the right seed, fertilizer, and crop protection program. It’s essential you have confidence in the inputs you are choosing for your acres. That’s why we’ve planted plots throughout Iowa showcasing our seed brand offerings. This year Farm Nutrients planted eight corn plots and two soybean … Continue reading Mid-Season Plot UpdateRead More >