Texas is known for its rugged landscapes and iconic, opportunistic, and problematic prickly pear. While these plants readily provide headaches to the grazing manager, oftentimes pear also serves as food and habitat for wildlife and is a native species on Texas rangelands. However, the South American Cactus Moth has been found and confirmed in five Texas counties.
[Read more…] about Prickly Pear and the South American Cactus Moth
As stewards, let’s all just take a Christmas moment reflection and a deep breath of blue grama. Did you know that blue grama is the most common plant found throughout the mixed prairie? Even more impressively, blue grama possesses the most general distribution thriving as far north as Canada and as far south as Mexico.
StockSmart is a new decision support tool that is used for grazing management. StockSmart can be used to calculate stocking rates for cattle, horses, and sheep on any landscape.
[Read more…] about A New Tool for Calculating Stocking Rates: StockSmart
What is Cheatgrass? Cheatgrass (Bromus tectorum), is an invasive annual species. This species poses a significant ecological threat to the Southern Great Plains of Texas, particularly in the Rolling Plains Region. Cheatgrass will displace native grasses such as sideoats grama (Bouteloua curtipendula), blue grama (Bouteloua gracilis) and little bluestem (Schizachyrium scoparium). These dominant, perennial, native grasses are key to maintaining soil stability, biodiversity, and forage quality (D’Antonio & Vitousek, 1992; Chambers et al., 2014).
Patch-burn grazing is a practice that requires an understanding of the interaction of fire and grazing (pyric herbivory) (for more information check out www.theprairieproject.org). It divides a pasture into pieces/patches, with one burn rotationally each year. It helps control woody plant encroachment and provides high-quality forages. Despite these known benefits, the adoption of this practice by ranchers has been slow and limited. This study focused on the benefits of patch-burn grazing by estimating the costs and long-term economic benefits. Additionally, researchers compared patch-burning to traditional applications of prescribed fire burning fenceline to fenceline or an entire pasture at once with a 3-year fire return interval.
In the western portion of the southern Great Plains, grasslands are defined as “southern mixed”, with warm season or C4 mid-grasses being dominant and cool season or C3 short-grasses in less frequent densities. As woody plant encroachment increasingly dominates, the productive warm season C4 grasses begin to decline with less abundance on the landscape and even less productivity. Woody plant dominance also reduces plant diversity eroding heterogeneity in the mixed-grass prairie. Recently, researchers measured the effects of various combinations of spring clipping (mimicked cattle grazing) and prescribed fire treatments over an 8 year period on Texas wintergrass and buffalograss with the overall objective of reducing Texas wintergrass abundance and increasing warm season C4 mid-grass species and diversity.
Did you know that having goats in your pasture could potentially complement the existing cattle operation while boosting livestock productivity and plant community diversity? Goats normally prefer and preferentially consume various types of woody and forb species more so than cattle do, and that their presence in a pasture does not alter what the cattle preferentially select to eat.
[Read more…] about Impact of Goats on Cattle Diet Composition
Honey mesquite varies widely in its response to herbicides. Previous research demonstrates most effective treatments have occurred about 50 to 90 days after the first leaves appear in the spring when they are fully formed and dark green (Bovey and Mayeux, Jr. 1981; Jacoby and Meyers 1983; Meyer et al., 1986). More recently, triclopyr has been found to be effective for control of honey mesquite (Bovey and Mayeux, Jr. 1981; Jacoby et al., 1981; Jacoby and Meadors 1983). Also, clopyralid has been found to be highly effective for controlling honey mesquite (Bovey and Mayeux, Jr. 1981; Jacoby et al., 1981).
Grasshoppers are in full force this year! Has that delayed your foliar herbicide applications on mesquite? If herbicide application success is dependent on optimal uptake through healthy, mature leaves, then what effect can varying defoliation rates have on herbicide efficacy of clopyralid, triclopyr, and clopyralid+triclopyr applications?
[Read more…] about Herbicide Efficacy Following Defoliation on Honey Mesquite
Ever wonder the effectiveness of herbicides on honey mesquite during drought? Well, researchers from our department were wondering the same thing and studied how drought effects herbicide efficacy in herbaceous and woody plants. There were chamber studies conducted to evaluate the influence of water stress and triclopyr on the absorption and translocation of clopyralid in greenhouse-grown honey mesquite. Clopyralid is an auxin-type herbicide highly effective at honey mesquite control. It is often used alone or in combinations with other active ingredients to form common honey mesquite foliar-applied herbicides like Sonora™ and Sendero™.
[Read more…] about Drought and Triclopyr on Clopyralid Efficacy in Honey Mesquite