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Showing 1 to 20 of 20 for “"smooth pigweed"”.
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Growth Analyses and Patterns of Cross-Resistance in Four Imidazolinone-Resistant Smooth Pigweed (Amaranthus hybridus) Populations
… (S) and four -resistant (R1, R2, R3, and R4) smooth pigweed populations to various acetolactate synthase (ALS)-inhibiting herbicides, (2) determine the mechanism of resistance, and (3) evaluate the relative growth and competitiveness of each population. Field studies were conducted in 1996 …
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Crop and herbicide rotation effects on weed population dynamics and the characterization of imidazolinone-resistant smooth pigweed (Amaranthus hybridus)
… of common lambsquarters, common ragweed, smooth pigweed, redroot pigweed, 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 …
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Characterization of Acetolactate Synthase-Inhibiting Herbicide-Resistant Smooth Pigweed and Corn Weed Management Programs Utilizing Mesotrione in Combinations with Other Herbicides
… of ALS-inhibiting herbicide-resistant smooth pigweed (<i>Amaranthus hybridus</i> L.), as well as investigations on weed management programs in corn (<i>Zea mays</i> L.) utilizing mesotrione, a triketone, in mixtures with other herbicides. ALS-inhibiting herbicide-resistant smooth …
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Triazine resistance in Chenopodium album and Amaranthus hybridus in Virginia
… common lambsquarters (Chenopodium album L.) and smooth pigweed (Amaranthus hybridus L.) in Virginia. Collections of seed were made from suspected triazine-resistant biotypes of common lambsquarters and smooth pigweed from counties in Virginia which had reported having triazine resistance …
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Exploring Diversified Vineyard Ecological Soil Management Strategies: Impacts of cover cropping, Spanish River Carbonatite, and smooth pigweed (Amaranthus hybridus) interactions on an agroecosystem
Agroecosystems are one of the most heavily managed ecosystems that provide essential services for human well being. Intense management of agroecosystems has led to global degradation of soil and reduced biodiversity, two of the major challenges faced by agriculture today. Soil, the foundation of an …
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Factors affecting common lambsquarters' tolerance to imazethapyr
… herbicide) by comparing it with susceptible smooth pigweed (Amaranthus hybridus). Both field and greenhouse studies, conducted in Illinois in 1994, showed common lambsquarters to be more tolerant than smooth pigweed, especially at the late growth stages. To determine mechanisms involved in …
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Weed Control in Cucumber Cucumis sativus, Pumpkin Cucurbita maxima, and Summer Squash Cucurbita pepo with Halosulfuron
… common ragweed (Ambrosia artemisiifolia L.) and smooth pigweed (Amaranthus hybridus L.). Postemergence halosulfuron controlled common ragweed, smooth pigweed, morningglory species (Ipomoea spp.), yellow nutsedge, and rice flatsedge (Cyperus iria L.). All four crops treated with halosulfuron …
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Studies on the Nature of Triazine Resistance in Weeds
… Triazine susceptible and resistant biotypes of smooth pigweed (Amaranthus hybridus L.) were grown at varying initial proportions under competitive conditions in the field. Resistant plants were less competitive than susceptible plants as measured by accumulation of aboveground dry weight and …
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Herbicide-based Weed Management Systems for Potato (<i>Solanum tuberosum</i>) and Wheat (<i>Triticum aestivum</i>) and Growth and Reproductive Characteristics of Smooth Pigweed (<i>Amaranthus hybridus</i>)
… of the biological characteristics of smooth pigweed (<i>Amaranthus hybridus</i>), a troublesome species in many crops. Sulfentrazone is an herbicide registered for use in soybean [<i>Glycine max</i> (L.) Merr.] and tobacco (<i>Nicotiana tabacum</i> L.) that may also have potential for …
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Incorporating the Experimental Herbicide CGA 362622 into Cotton Weed Management Programs in Virginia
… glyphosate controlled common lambsquarters and smooth pigweed (Amaranthus hybridus L.) better than glyphosate alone, and in most instances controlled annual morningglory species better than glyphosate applied alone. Timely applications of CGA 362622 plus bromoxynil controlled velvetleaf, smooth …
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Efficacy of Herbicide Combination on Burley and Dark-Air Cured Tobacco
… (ivyleaf morningglory), Amaranthus hybridus L. (smooth pigweed), and Eleusine indica L. (goosegrass). Sulfentrazone alone provided >69% control of smooth pigweed and >89 % control of ivyleaf morningglory in burley and dark-air cured tobacco. At 21 days after treatment (DAT) the combinations of …
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Field and laboratory investigations on the efficacy, selectivity, and action of the herbicide clomazone
… imazaquin or chlorimuron plus linuron improved smooth pigweed (Amaranthus hybridus L.) control over that provided by clomazone alone. These combinations generally did not improve large crabgrass, jimsonweed (Datura stramonium L.), and common lambsquarters (Chenopodium album L.) control over that …
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Weed control efficacy and biodegradation characteristics of imazethapyr
… (POST). Imazethapyr controlled 90% or more smooth pigweed (Amaranthus hybridus) regardless of application method or herbicide rate. Imazethapyr control of jimsonweed (Datura stramonium) at 0.5 kg/ha was 30% better POST compared to soil applications. Imazethapyr at 0.10 kg ai/ha controlled …
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Weed management in conventional, no-till, and transgenic corn with mesotrione combinations and other herbicides
… common lambsquarters (Chenopodium album L.), smooth pigweed (Amaranthus hybridus L.), common ragweed (Ambrosia artemisiifolia L.), or morningglory species (Ipomoea spp.) in conventional tillage corn, but control of these weeds was generally improved in no-till corn. Mesotrione combinations …
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A waterhemp saga: Seed production, genetics, hybridization, and the creation and discovery of quad-stack individuals
… plants of the Missouri waterhemp population into smooth pigweed through hybridization. Progeny were confirmed as hybrids by use of ITS markers, and hybrid plants were found to be resistant to glyphosate. Hybrids were backcrossed (BC) to smooth pigweed, but produced very few seed, preventing the …
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Field, greenhouse, and laboratory evaluation of the efficacy and selectivity of the herbicide thifensulfuron for weed control in soybeans (Glycine max)
… Thifensulfuron applied alone provided smooth pigweed (Amaranthus hybridus L. #AMACH) control at application rates 12% of those of the similar herbicide chlorimuron. Nonionic surfactant or crop oil concentrate increased soybean sensitivity to thifensulfuron, but an adjuvant was required …
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Evaluation of Weed Control and Crop Tolerance With Postemergence Herbicides in Sethoxydim-Tolerant Corn
… to evaluate control of annual species including smooth pigweed (Amaranthus hybridus L.), common lambsquarters (Chenopodium album L.), giant foxtail (Setaria faberi Herrm.), ivyleaf morningglory (Ipomoea hederaceae L. Jacq.), jimsonweed (Datura stramonium L.), large crabgrass (Digitaria …
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Field efficacy and availability, movement, and persistence of ICIA-0051 herbicide in soils
… 85% control or better of triazine-resistant smooth pigweed (<i>Amaranthus hybridus</i> L.), while fall panicum (<i>Panicum dichotomiflorum</i> Michx.) control ranged from 43 to 87%. Giant ragweed (<i>Ambrosia trifida</i> L.) control ranged from 30 to 95%, while control of ivyleaf morningglory …
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Field, greenhouse, and laboratory studies on the efficacy and action of the herbicides SC-0051 and SC-0774
… and was safe to corn. SC-0051 did not control smooth pigweed (Amaranthus hybridus L.) or giant foxtail (Setaria faberi Herrm.). SC-0774 effectively controlled the rye (Secale cereale) cover crop and large crabgrass (Digitaria sanguinalis (L. Scop.) but did not control broadleaf weeds or giant …
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Efficacy, Phytotoxicity, and Cover Crop Response of Herbicide Combinations in Dark Fire Cured Tobacco
… (Ivyleaf morningglory), Amaranthus hybridus L. (smooth pigweed), and Eleusine indica L. (goosegrass). Crop injury and weed control evaluations were recorded on a 0-100% scale with 0 representing no injury and/or no control and 100 representing plant death. After crop removal, two types of tillage …