MicroRNA319 (miR319) is one of the first characterized and conserved microRNA families in plants and has been demonstrated to target TCP (for TEOSINTE BRANCHED/CYCLOIDEA/PROLIFERATING CELL FACTORS [PCF]) genes encoding plant-specific transcription factors. MiR319 expression is regulated by environmental stimuli, suggesting its involvement in plant stress response, although experimental evidence...

Cogongrass is a troublesome, invasive weedy species with reported allelopathic properties. The phytotoxicity of different constituents isolated from roots and aerial parts of this species was evaluated on garden lettuce and creeping bentgrass. No significant phytotoxic activity was detected in the methylene chloride, methanol, or water extracts when tested at 1.0 mg ml. However, the total essen...

BACKGROUND Turfgrass species are agriculturally and economically important perennial crops. Turfgrass species are highly susceptible to a wide range of fungal pathogens. Dollar spot and brown patch, two important diseases caused by fungal pathogens Sclerotinia homoecarpa and Rhizoctonia solani, respectively, are among the most severe turfgrass diseases. Currently, turf fungal disease control ma...

Positive effects on plant health provided by quinone outside inhibitors (QoI) and other fungicide classes have been previously reported in turfgrass agricultural crops. However, most of the research was conducted under controlled environmental rather than field conditions. Two one greenhouse experiments were repeated southern California from 2011–2013 to test ability selected fungicides retain ...

Improving water conservation efforts for golf course turf is a constant industry goal. While creeping bentgrass (Agrostis stolonifera L.; CBG) the preferred fairway species throughout most of cool-humid regions, requirements alternative cool-season with better acute drought tolerance at mowing heights (e.g., <0.5 inch) are not well documented. A 2-yr field study compared two irrigation strategi...

Interest in low-input alternative fairway turfs has increased because of restrictions. This study compared the volumetric soil water content (VSWC) and turf quality five under reduced irrigation low nitrogen. The main plots were ‘Epic’ strong creeping red fescue (Festuca rubra ssp. L., SCRF), ‘Vesper’ velvet bentgrass (Agrostis canina VBG), ‘Shark’ stolonifera CBG), ‘Diva’ Kentucky bluegrass (P...

Reestablishment of damaged golf greens and fairways planted to creeping bentgrass ( Agrostis stolonifera ), colonial A. capillaris velvet canina ) is a common practice following winter injuries. Identifying species sp.) cultivars with the potential establish under low soil temperatures would be beneficial achieving more mature stands earlier in spring. Twelve cultivars, including seven (007, 13...

Dollar spot (Clarireedia spp.) negatively impacts the aesthetic value and playability of golf course fairways. A 2-yr field trial was conducted to examine organic amendment effect on dollar severity fungicide residual efficacy for control creeping bentgrass (Agrostis stolonifera L. ‘007’). Treatments were arranged in a 7 × 5 split-plot factorial measuring fertilizer source (soil incorporated bi...

Creeping bentgrass ( Agrostis stolonifera ) experiences quality decline during summer in the United States transition zone and warmer regions. Various bioproducts have been used to improve creeping performance mitigate effects of stress zone. This 2-year study was carried out examine if foliar application seaweed extract (SWE; Ascophyllum nodosum )-based biostimulant Utilize ® could enhance nit...