The Toxicity of EPTC to Nutsedge

Holt, Elise; Long, Jianhai; Allen, W. Wayne

doi:10.2307/4040656

Cited by 22 publications

(14 citation statements)

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“…Keeley and Thullen (12) and Holt et al (9) observed that EPTC delays emergence of nutsedge. Further, Holt et al (9) reducing populations of tubers in 1975.…”

Section: Resultsmentioning

confidence: 99%

“…Keeley and Thullen (12) and Holt et al (9) observed that EPTC delays emergence of nutsedge. Further, Holt et al (9) reducing populations of tubers in 1975. The different conclusions drawn from viable vs. firm tuber data in 1975 and 1976 are largely the result of the poor sproutability of tubers collected from plots chemically fallowed with glyphosate (Table 5).…”

Section: Resultsmentioning

confidence: 99%

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Comparison of Four Cropping Systems for Yellow Nutsedge (Cyperus esculentus) Control

Keeley¹,

Thullen²,

Miller³

et al. 1979

Weed sci.

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Four cropping systems were evaluated from 1975 to 1977 for the control of yellow nutsedge (Cyperus esculentusL.). Crops grown in 1975 and 1976 included alfalfa (Medicago sativaL. ‘Elcamino WL-600′), barley(Hordeum vulgareL. ‘CM-67′), corn (Zea maysL. ‘Dekalb T214′), and cotton (Gossypium hirsutumL. ‘Acala SJ-2′). Herbicides used included butylate (S-ethyl diisobutylthiocarbamate) in corn, EPTC (S-ethyl dipropylthiocarbamate) in alfalfa, glyphosate [N-(phosphonomethyl)glycine] in fallow plots, and MSMA (monosodium methanearsonate) in cotton. Cotton, which was grown continuously as one of the four cropping systems, was the only crop grown in 1977. Based on weed counts, crop yields, and the consistent decline in the number of tubers, all cropping systems provided substantial control of yellow nutsedge each year. Two years of either alfalfa treated with EPTC or double cropping barley with corn treated with butylate preceeding cotton reduced the number of viable yellow nutsedge tubers by 96%. Two years of chemically fallowing plots with glyphosate following barley and preceeding cotton was 98% effective in reducing viable tubers. Treating continuous cotton with MSMA, although somewhat inferior to the above systems, reduced the number of viable nutsedge tubers by 91% in 3 yr.

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“…Keeley and Thullen (12) and Holt et al (9) observed that EPTC delays emergence of nutsedge. Further, Holt et al (9) reducing populations of tubers in 1975.…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Comparison of Four Cropping Systems for Yellow Nutsedge (Cyperus esculentus) Control

Keeley¹,

Thullen²,

Miller³

et al. 1979

Weed sci.

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“…Several herbicides labeled for cotton (Holt et al 1962; Volume 17, Issue 4 (October-December) 2003 Keeley and Thullen 1971;Keeley et al 1972;Wilcut 1998; Wills and McWhorter 1988) and soybean (Anonymous 2000; Bariuan et al 1999;Reddy and Bendixen 1998) provide various levels of purple nutsedge control or suppression. Shading of tuber-infested soils reduces purple nutsedge emergence (Patterson 1982).…”

Section: Introductionmentioning

confidence: 99%

Purple Nutsedge (Cyperus rotundus) Population Dynamics in Narrow Row Transgenic Cotton (Gossypium hirsutum) and Soybean (Glycine max) Rotation¹

Bryson¹,

Reddy²,

Molin³

2003

Weed Technology

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A 4-yr field study was conducted during 1998 through 2001 at Stoneville, MS, to determine the effects of narrow-row transgenic cotton and soybean rotation on purple nutsedge populations and crop yield. Crop rotations over 4 yr included cotton and soybean sown in the following patterns: CCSS, CSCS, SCSC, SSCC, and continuous cotton (CCCC) and soybean (SSSS), where cotton is denoted as (C) and soybean as (S), all with herbicide programs that were glyphosate based, non–glyphosate based, or no purple-nutsedge control (NPNC). Purple nutsedge populations and shoot dry biomass were reduced in cotton and soybean rotation and continuous soybean by 72 and 92%, respectively, whereas in continuous cotton, purple nutsedge populations increased by 67% and shoot dry biomass was reduced by 32% after 4 yr. Reductions in purple nutsedge populations also occurred in soybean when cotton was rotated with soybean (CSCS and SCSC), compared with continuous cotton. Among herbicide programs, the glyphosate-based program was more effective in reducing purple nutsedge populations, compared with the non–glyphosate-based program. Seed cotton yield was greater with cotton following soybean (SCSC) than with cotton following cotton (CCCC, CCSS) in 1999. However, seed cotton yields were similar regardless of crop rotation systems in 2000 and 2001. Seed cotton yields were equivalent in the glyphosate-based and non–glyphosate-based programs in 1999 and 2001. During 1999 to 2001, seed cotton yields were reduced by 62 to 85% in NPNC compared with yields in glyphosate- and non–glyphosate-based programs. Soybean yields were unaffected by crop rotation systems in all the 4 yr. Among herbicide programs, non–glyphosate-based program in all 4 yr and glyphosate-based program in 1999 and 2000 gave higher soybean yield compared with NPNC. After 4 yr of rotation, purple nutsedge tubers and plant density were highest in continuous cotton and lowest in continuous soybean. Both herbicide programs reduced tubers per core and plant density compared with NPNC, and the glyphosate-based program was more effective than the non–glyphosate-based program. These results show that in cotton production, severe infestations of purple nutsedge can be managed by rotating cotton with soybean or by using glyphosate-based herbicide program in glyphosate-resistant cotton.

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“…Nutsedge control averaged 94$ 9 weeks after application with 6 lb of EPTC per acre (Trevett and Austin, 1959). Holt et al (1962 ) found that tubers germinated readily in soil treated with EPTC. They found that EPTC at 12 and 16 lb/ A was very effective in killing nutsedge tubers.…”

Section: -mentioning

confidence: 97%

Chemical control of nutsedge (Cyperus rotundus L.) and the metabolism of 3,6-dichloro-O-anisei acid (dicamba) /

Ray¹

1967

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REVIEW OF LITERATURE Nutsedge and Its Control Nutsedge is one of the most persistent weeds in croplands and is very often a serious pest in vegetable crops and in nursery stocks. This weed not only causes reduction in yield through competition for water and minerals in the soil, but also increases the cost of cultivation and lowers crop quality. It is also a problem in lawns, where it spoils the appearance of the turf. Bell et al. (1962) pointed out that nutsedge rhizomes grew through potato tubers, thus increasing the proportion of culls. Nutsedge tubers were also found to pass through bean-shelling equipment, necessitating hand sorting. Although nutsedge is a native of Asia, it is distributed widely in all warm regions and is found in Africa, Australia, and in the warmer parts of Europe. The plant is adaptable to a wide variety of soils and environmental conditions in tropical or subtropical regions (Muenscher, 1955)* In the United States, it is found from Virginia to Florida, Kansas, and Texas. Yellow nutsedge (Cyperus esculentus L.

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The Toxicity of EPTC to Nutsedge

Cited by 22 publications

References 0 publications

Comparison of Four Cropping Systems for Yellow Nutsedge (Cyperus esculentus) Control

Comparison of Four Cropping Systems for Yellow Nutsedge (Cyperus esculentus) Control

Purple Nutsedge (Cyperus rotundus) Population Dynamics in Narrow Row Transgenic Cotton (Gossypium hirsutum) and Soybean (Glycine max) Rotation¹

Chemical control of nutsedge (Cyperus rotundus L.) and the metabolism of 3,6-dichloro-O-anisei acid (dicamba) /

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The Toxicity of EPTC to Nutsedge

Cited by 22 publications

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Comparison of Four Cropping Systems for Yellow Nutsedge (Cyperus esculentus) Control

Comparison of Four Cropping Systems for Yellow Nutsedge (Cyperus esculentus) Control

Purple Nutsedge (Cyperus rotundus) Population Dynamics in Narrow Row Transgenic Cotton (Gossypium hirsutum) and Soybean (Glycine max) Rotation1

Chemical control of nutsedge (Cyperus rotundus L.) and the metabolism of 3,6-dichloro-O-anisei acid (dicamba) /

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Product

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About

Purple Nutsedge (Cyperus rotundus) Population Dynamics in Narrow Row Transgenic Cotton (Gossypium hirsutum) and Soybean (Glycine max) Rotation¹