Category Archives: Herbicides
Herbicide Management in Corn and Forage Sorghum Silage Crops
Jourdan Bell, Kevin Heflin, Vanessa Corriher-Olsen, and Pete Dotray In response to increasing silage demands, Texas producers are growing more corn and forage sorghum for silage. In recent years, some producers are also making late season decisions to harvest corn intended for grain as silage due to favorable silage markets. As producers make preplant agronomic decisions, it is important to select herbicides that are labeled for the silage crops if there is a contingency plan to chop a grain crop for silage. Although it is commonly… Read More →
Late-season Weed Control in Wheat
Dr. Calvin Trostle, Extension Agronomy, TAMU Soil & Crop Sciences, Lubbock, TX (806) 723-8432, ctrostle@ag.tamu.edu Wheat farmers in the Rolling Plains, Concho Valley, and especially the High Plains, may have enough time to implement some late-season weed control in problem fields. For some farmers, earlier weed control with 2,4-D products may have given incomplete control for mustards, London rocket, kochia, etc. As many farmers across Texas know there is always some risk using growth-regulator type herbicides in wheat due to injury potential on grain yield. These herbicides include… Read More →
Soil management considerations for upcoming pre-emergence herbicide applications in corn and sorghum
Many farmers across Texas will be thinking about planting corn in just a couple of months, and sorghum shortly after that. Managing soil for good seed-soil contact and for fertilizer nutrients are common concerns as the time for planting nears, but understanding how the management of soil works into integrated pest management (IPM) programs can be helpful to ensuring the effectiveness of expensive pre-emergence (PRE) herbicide applications as well. There are two concepts presented in this article to consider for how soils effect PRE herbicides. 1. Activity –… Read More →
Mid- to Late-Season Weed Control Options for Peanut
Weed pressure seems higher this season due to better than average soil moisture. Herbicides applied preplant and at planting have been effective, but new weed flushes following rainfall or irrigation are likely as soil applied herbicides are dissipating. Herbicides applied at early-postemergence that do not have soil activity are also prone to allow new weed flushes. In other words, good early season weed control may need some attention because previously applied herbicides have dissipated over time. So what options do we have from now to early peg stage?… Read More →