Herbicide Action on Purple and Yellow Nutsedge (<i>Cyperus rotundus</i>and<i>C. esculentus</i>)

Pereira, Welington; Crabtree, Garvin; William, Ray D.

doi:10.1017/s0890037x00029201

Cited by 52 publications

(37 citation statements)

References 54 publications

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“…A particularly tough weed to control effectively with currently registered herbicides is Cyperus esculentus L (yellow nutsedge) 16 . Cyperus esculentus can be controlled effectively with methyl bromide17 and metam‐sodium soil fumigation 18.…”

Section: Introductionmentioning

confidence: 99%

Fumigant combinations for Cyperus esculentum L control

Hutchinson

McGiffen

Sims

et al. 2003

Pest Management Science

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The phase-out of methyl bromide as a soil fumigant has stimulated research into the use of other soil fumigants for weed control. Methyl bromide, methyl iodide, propargyl bromide, 1,3-dichloropropene (1,3-D) and metam-sodium were tested alone and in combination with chloropicrin in laboratory experiments to determine their efficacy against Cyperus esculentus L (yellow nutsedge) tubers. Propargyl bromide and metam-sodium were the most efficacious fumigants tested, with EC50 values of 3.7 and 6.5 microM, respectively. The relative potencies of methyl iodide and chloropicrin were not significantly different but were 2.6 and 2.9 times more potent than methyl bromide, respectively. The EC50 values for all fumigants other than 1,3-D were significantly lower than that of methyl bromide. Combining each fumigant with 17% chloropicrin resulted in a synergistic interaction. The greatest increase in potency between the expected result and the actual result was a relative potency of 3.8 with the methyl bromide/chloropicrin combination. The smallest increase in efficacy was with propargyl bromide and chloropicrin, with a relative potency of 1.5. There was no significant difference between the EC50 values of methyl bromide/chloropicrin and methyl iodide/chloropicrin combinations. Combining 1,3-D with 17% chloropicrin resulted in an EC50 value for C. esculentus control similar to that of methyl iodide applied alone.

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Section: Introductionmentioning

confidence: 99%

Fumigant combinations for Cyperus esculentum L control

Hutchinson

McGiffen

Sims

et al. 2003

Pest Management Science

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“…Purple nutsedge has proved difficult to control with herbicides. Chemical control measures provide only poor or temporary control (Pereira et al, 1987) because of limited uptake and translocation of herbicides, and to temporal inhibition of tuber sprouting. All the commercial herbicides available in the market aimed to control or kill the growing above ground part of the weed plants.…”

Section: Issn: 2319-7706 Volume 6 Number 9 (2017) Pp 886-895mentioning

confidence: 99%

Assessment of Tuber Viability and Sprouting Behavior of Purple Nutsedge (Cyperus rotundus) - A Prelude Study for Control of World Worst Weed

Chinnamuthu¹,

Srimathi²

2017

Int.J.Curr.Microbiol.App.Sci

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“…However, systematic comparison of herbicide sensitivity profiles between different biotypes has not been made, even after Pereira et al . () reported inconsistent chemical control with atrazine due to differences in biotypes and tuber size.…”

Section: Introductionmentioning

confidence: 99%

Differences in growth and herbicide sensitivity among Cyperus esculentus clones found in Belgian maize fields

et al. 2017

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Summary Cyperus esculentus is an invasive troublesome neophyte in many arable crops in Belgium. Applied weed control varies from field to field. One of the possible reasons for this variability might be a differential vegetative and reproductive behaviour among Belgian C. esculentus clones. In this study, growth characteristics and herbicide sensitivity of C. esculentus clones collected in Belgian maize (Zea mays) fields were evaluated. In a morphology Experiment, 25 clones were screened for growth characteristics and ability to set viable seeds under outdoor conditions. Dose–response experiments were conducted in the glasshouse to evaluate the effectiveness of two foliar‐applied herbicides (bentazon and glyphosate) and two pre‐sowing soil‐incorporated herbicides (S‐metolachlor and dimethenamid‐P) for controlling 14 C. esculentus clones. Response variables were aboveground dry biomass, tuber number, tuber dry biomass and individual tuber dry weight. Clones exhibited large differences in shoot number (up to 3.1‐fold), tuber dry biomass (up to 4.7‐fold), tuber number (up to 3.4‐fold), individual tuber dry weight (up to 4.8‐fold), inflorescence number and capacity to set viable seeds. Large interclonal differences in herbicide sensitivity (up to 8.3‐ and 4.0‐fold for aboveground dry biomass and tuber dry biomass, respectively) were observed. Contrary to foliar‐applied herbicides, soil‐incorporated herbicides were very effective and provided season‐long C. esculentus control at doses below the recommended maximum field dose. However, low doses stimulated tuber formation. Future C. esculentus management strategies should take into account differential growth characteristics and herbicide sensitivity of C. esculentus clones.

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Herbicide Action on Purple and Yellow Nutsedge (Cyperus rotundusandC. esculentus)

Cited by 52 publications

References 54 publications

Fumigant combinations for Cyperus esculentum L control

Fumigant combinations for Cyperus esculentum L control

Assessment of Tuber Viability and Sprouting Behavior of Purple Nutsedge (Cyperus rotundus) - A Prelude Study for Control of World Worst Weed

Differences in growth and herbicide sensitivity among Cyperus esculentus clones found in Belgian maize fields

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