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Showing 1 to 20 of 30 for “"crabgrass"”.
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Forage Systems for the Southeastern United States: Crabgrass and Crabgrass-Lespedeza Mixtures
Crabgrass is a warm-season annual species that has the potential to provide high-quality summer forage for ruminants in the transition zone between subtropical and temperate regions of the United States. Growing annual lespedeza in association with crabgrass may be beneficial due to nitrogen …
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Environmental influence on postemergence chemical control of crabgrass (Digitaria spp.) in turf
… standard) for postemergence control of large crabgrass (Digitaria sanguinalis) in Kentucky bluegrass (Poa pratensis) and bermudagrass (Cynodon dactylon) turf. BAS 514 was significantly influenced by variable environment. Section two of the research studied control of southern crabgrass …
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Effect of Temperature, Moisture, and Soil Texture on Dimethyl 2,3,5,6 Tetrachloroterephthalic Acid Degradation (Crabgrass)
… level of DCPA required for the control of large crabgrass (Digitaria sanguinalis L. Scop.) germination was measured in the field. An application rate of 4.5 Kg a.i. ha('-1) (38% of the labeled rate) provided a similar degree of control to that of the full rate.
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Preliminary evaluation of the rice blast fungus (Magnaporthe grisea) as a potential bioherbicide control agent for crabgrass (Digitaria sanguinalis) infestations of tall fescue (Festuca arundinacea Schreb. cv. Fawn) turf
… as a potential bioherbicide for the control of crabgrass (Digitaria sanguinalis), in turf/lawn plantings. Experiments were: (i) evaluation of the effect of bioherbicide inoculum dosage (titer) on disease severity in crabgrass; (ii) competition between crabgrass and tall fescue (Festuca …
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Interaction Between Weeds and Insect Pests With Snap Beans (Phaseolus Vulgaris L.)
… pigweed (Amaranthus retroflexus L.) or large crabgrass (Digitaria sanguinalis L.) and bean leaf beetle or potato leafhopper in snap beans (Phaseolus vulgaris L.) cv ""Matador"". The main treatment was emergence time of either redroot pigweed or large crabgrass relative to snap beans' planting …
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Infection and development of Ustilago syntherismae in Digitaria ciliaris
… (Schwein.) Peck, which causes loose smut of crabgrass, infects its host systemically and destroys seed production. Greenhouse experiments were carried out to investigate the mode of infection, the disease incidence that can be obtained by artificial inoculation and the conditions necessary …
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Elucidating Influence of Temperature and Environmental Stress on Turfgrass Response to Mesotrione and Evaluation of Potential Synergistic Admixtures to Improve Mesotrione Efficacy
… in 2005 and 2006 in Blacksburg, VA on smooth crabgrass in perennial ryegrass and tall fescue. Data indicate mesotrione applied in combination with bentazon, bromoxynil, or carfentrazone, controlled smooth crabgrass better than any of these herbicides applied alone at all sites. Adding …
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Factors affecting the performance of three postemergence, grass- selective herbicides
… increases in sethoxydim toxicity to large crabgrass (Digitaria sanguinalis (L.) Scop.), while only slight increases in toxicity of either CGA-82725 or RO 13-8895 were observed due to the addition of an adjuvant. There were no differences between crop oil concentrates and a nonionic wetting …
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Field and laboratory investigations on the efficacy, selectivity, and action of the herbicide clomazone
… Clomazone applied preemergence provided large crabgrass (Digitaria sanguinalis L.) control equivalent to that of oryzalin applied preplant or preemergence and provided better control of several broadleaf weeds. Control from preplant applications of clomazone was not adequate. Preemergence and …
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Optimizing Topramezone and Other Herbicide Programs for Weed Control in Bermudagrass and Creeping Bentgrass Turf
… [Eleusine indica (L.) Gaertn.] and smooth crabgrass [Digitaria ischaemum (Schreb.) Schreb. ex Muhl.] are problematic weeds in bermudagrass and creeping bentgrass turf. Increased incidences of herbicide resistant weed populations and severe use restrictions on formerly available herbicides …
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Exploring Novel Adjuvants and Herbicide Synergies: Pyridate and Ethoxylated Lecithin for Improved Control of Turfgrass Weeds
… herbicide-resistant annual bluegrass, and smooth crabgrass—while keeping grass safe and vibrant. The first study checked if pyridate harms seven types of turfgrass, like bermudagrass and Kentucky bluegrass. The second examined how well pyridate controls kyllinga and nutsedge in lawns. The third …
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Controlled-Release Preemergence Herbicide Formulations for Annual Grass Control in Kentucky Bluegrass Turf
… in the control of large crabgrass (Digitaria sanguinalis (L.) Scop. in Kentucky bluegrass (Poa pratensis (L.)) turf.
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Evaluation of Novel Techniques to Control Annual Grasses in Intensively Managed Turfgrass Systems
… (Eleusine indica L. Gaertn.), and smooth crabgrass (Digitaria ischaemum Schreb.) control on golf course putting greens or putting green surrounds. Hybrid bermudagrass Cynodon transvaalensis Burtt. Davy. x dactylon L. Pers.) tolerated cumyluron regardless of application timing, endothall …
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Assessing Spray Deposition and Weed Control Efficacy from Aerial and Ground Equipment in Managed Turfgrass Systems
… application rate, total deposition, and smooth crabgrass control by quinclorac herbicide decreases. Deposition under the ASD was heterogeneous as the coefficient of variation (CV) within the targeted swath exceeded 30% regardless of operational height. At higher operational heights, relative …
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Reduced Chemical Weed Control Options in Virginia for Corn and Turfgrass and Characterization of Sorghum halepense Expressing Multiple Resistance to Nicosulfuron and Glyphosate
… meal, an organic herbicide product, reduced crabgrass 25%. Moreover, control was dependent on herbicide choice. Herbicides applied at half of recommended labeled rates or less did not control crabgrass at a commercially-acceptable level, regardless of corn gluten meal addition. In field …
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Crop and herbicide rotation effects on weed population dynamics and the characterization of imidazolinone-resistant smooth pigweed (Amaranthus hybridus)
… jimsonweed, goosegrass, stinkgrass, large crabgrass, smooth crabgrass, fall panicum, and yellow nutsedge. Generally, the continuous use of the same herbicide or herbicides with similar selectivities resulted in proliferation of tolerant weed species. Corn, tomato, and soybean yields were …
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"Digitaria Sanguinalis (l.) Scop., Echinochloa Crus-galli (l.) Beauv. And Setaria Faberi (herrm.) Interference And Subsequent Control In Container Grown Cornus X Baileyi, Juniperus Chinensis ""san Jose' And Potentilla Fruticosa ""gold Drop'"
… nursery operators revealed foxtail, quackgrass, crabgrass and barnyardgrass were the most prevalent grasses found infesting field and container grown ornamentals. Subsequently, randomized block designed experiments were conducted for two consecutive years to determine the influence of grass weeds …
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Field, greenhouse, and laboratory studies on the efficacy and action of the herbicides SC-0051 and SC-0774
… the rye (Secale cereale) cover crop and large crabgrass (Digitaria sanguinalis (L. Scop.) but did not control broadleaf weeds or giant foxtail. SC-0774 also caused considerable but temporary corn injury when applied at rates above 1.1 kg/ha. Combinations of SC-0051 and atrazine provided broad …
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Evaluation of alternative forage species to reduce risk for cow-calf production systems in the Appalachian region
… (KY31 E-), novel endophyte tall fescue (MaxQ), Crabgrass in combination with endophyte-infected tall fescue, Teff, Bermudagrass (BG), and Caucasian bluestem (CB). Plots were harvested May through October of 2009 and 2010 at the late boot stage at a cutting height of 10cm. Subsamples were …
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Herbicide evaluation for broadleaf weed control in direct-seeded broccoli
… ragweed. Greater than 90% control of large crabgrass was observed with BAS 514 plus BAS 090 at 0.28 kg/ha. Nomenclature: oxyfluorfen, 2-chloro-1-(3-ethoxy-4-nitrophenoxy)-4-(trifluoromethyl) benzene; pyridate 6-chloro-3-phenylpyridazine-4-yl-S-octyl carbonothionate; BAS 514, quinclorac, …
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