Selective Exposure of Yellow (Cyperus esculentus) and Purple Nutsedge (Cyperus rotundus) to Postemergence Treatments of CGA-362622, Imazaquin, and MSMA

Greenhouse studies were conducted to evaluate shoot number, shoot weight, and root weight reduction of yellow and purple nutsedge to three placement levels (soil, foliar, and soil + foliar applied) and four herbicide treatments (CGA-362622, imazaquin, MSMA, and imazaquin + MSMA). Soil-applied CGA-36...

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Veröffentlicht in:Weed technology 2003-07, Vol.17 (3), p.554-559
Hauptverfasser: MCELROY, J. Scott, YELVERTON, Fred H, TROXLER, Shawn C, WILCUT, John W
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creator MCELROY, J. Scott
YELVERTON, Fred H
TROXLER, Shawn C
WILCUT, John W
description Greenhouse studies were conducted to evaluate shoot number, shoot weight, and root weight reduction of yellow and purple nutsedge to three placement levels (soil, foliar, and soil + foliar applied) and four herbicide treatments (CGA-362622, imazaquin, MSMA, and imazaquin + MSMA). Soil-applied CGA-362622 reduced shoot number, shoot weight, and root weight greater than foliar-applied CGA-362622. Foliar-applied imazaquin and soil-applied MSMA achieved little reduction in measured variables compared with the nontreated control. Foliar-applied imazaquin and soil-applied MSMA reduced shoot number, shoot weight, and root weight less than imazaquin + MSMA applied in a similar manner. Averaged over placement levels, imazaquin reduced shoot weight of yellow nutsedge greater than purple nutsedge. Averaged over herbicide treatments, soil-applied treatments were more effective in reducing purple nutsedge shoot number, whereas foliar-applied treatments were more effective in reducing yellow nutsedge shoot number.
doi_str_mv 10.1614/WT02-156
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subjects Acid soils
Biological and medical sciences
Factorials
Fundamental and applied biological sciences. Psychology
Herbicides
Leaves
Overhead irrigation
Parasitic plants. Weeds
Phytopathology. Animal pests. Plant and forest protection
Rice
Soil science
Soil treatment
Tubers
Weed control
title Selective Exposure of Yellow (Cyperus esculentus) and Purple Nutsedge (Cyperus rotundus) to Postemergence Treatments of CGA-362622, Imazaquin, and MSMA
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