Flumioxazin is a protoporphyrinogen oxidase (Protox) inhibitor with potential for postemergence (POST) control of annual bluegrass (Poa annua L.) and preemergence (PRE) control of smooth crabgrass [Digitaria ischaeum (Schreb.) Schreb. ex Muhl.] in bermudagrass [Cynodon dactylon (L.) Pers.]. However, flumioxazin efficacy is reduced under low temperatures, and control is often inconsistent on mature annual bluegrass. The objective of this research was to evaluate the use of adjuvants on flumioxazin efficacy for POST control of annual bluegrass and residual smooth crabgrass in bermudagrass. Tank-mixing methylated seed oil, nonionic surfactant, or ammonium sulfate did not improve POST annual bluegrass control from flumioxazin at 0.42 kg active ingredient (a.i.) ha−1 alone. Granular urea antagonized flumioxazin efficacy and increased the time to achieve 50% annual bluegrass control (C50) by more than 4 weeks. Flumioxazin alone controlled annual bluegrass >80% at 9 weeks after treatment in both years. All treatments provided excellent (90 to 100%) control of smooth crabgrass at 4 months after treatment (MAT) and ≥89% control at 5 MAT. All flumioxazin treatments provided >70% control of smooth crabgrass and reduced grid count cover >65% from the untreated at 7 MAT. Although adjuvants did not enhance speed of annual bluegrass control from late-winter applications, flumioxazin alone controlled annual bluegrass >80%, and provided >80% PRE control of smooth crabgrass.
Applied Turfgrass ScienceVolume 11, Issue 1 ATS-2014-0025-BR p. 1-3 Brief Speedzone has Potential for Postemergence Goosegrass Control in Perennial Ryegrass and Creeping Bentgrass L. J. Leibhart, Corresponding Author L. J. Leibhart lacy.leibhart@huskers.unl.edu Dep. of Agronomy and Horticulture, Univ. of Nebraska, Lincoln, NE, 68583Corresponding author (lacy.leibhart@huskers.unl.edu).Search for more papers by this authorM. D. Sousek, M. D. Sousek Dep. of Agronomy and Horticulture, Univ. of Nebraska, Lincoln, NE, 68583Search for more papers by this authorG. Custis, G. Custis PBI Gordon, Kansas City, MO, 64101Search for more papers by this authorZ. J. Reicher, Z. J. Reicher Dep. of Agronomy and Horticulture, Univ. of Nebraska, Lincoln, NE, 68583Search for more papers by this author L. J. Leibhart, Corresponding Author L. J. Leibhart lacy.leibhart@huskers.unl.edu Dep. of Agronomy and Horticulture, Univ. of Nebraska, Lincoln, NE, 68583Corresponding author (lacy.leibhart@huskers.unl.edu).Search for more papers by this authorM. D. Sousek, M. D. Sousek Dep. of Agronomy and Horticulture, Univ. of Nebraska, Lincoln, NE, 68583Search for more papers by this authorG. Custis, G. Custis PBI Gordon, Kansas City, MO, 64101Search for more papers by this authorZ. J. Reicher, Z. J. Reicher Dep. of Agronomy and Horticulture, Univ. of Nebraska, Lincoln, NE, 68583Search for more papers by this author First published: 08 January 2014 https://doi.org/10.2134/ATS-2014-0025-BRCitations: 1 All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher. Permission for printing and for reprinting the material contained herein has been obtained by the publisher. Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article.Citing Literature Volume11, Issue12014Pages 1-3 RelatedInformation
Flazasulfuron may be safely applied to actively growing seashore paspalum (Paspalum vaginatum Sw.), but applications for annual bluegrass control in late winter or spring could be injurious. A 3-year field experiment was conducted to evaluate tank mixtures of flazasulfuron with amicarbazone at turf dormancy or partial greenup to determine if combinations could enhance annual bluegrass control and mitigate seashore paspalum injury compared to exclusive treatments. Single applications of flazasulfuron at 26 g a.i. ha−1 at both timings provided good (80 to 89%) to excellent (>90%) control of annual bluegrass in 2 of 3 years, while sequential applications provided ≥86% control at both timings in all 3 years. Tank mixtures of flazasulfuron at 26 g ha−1 plus amicarbazone at 196 g ha−1 significantly improved annual bluegrass control from flazasulfuron alone at 26 g ha−1 at both timings in 2 of 3 years. Amicarbazone tank mixtures did not improve annual bluegrass control from flazasulfuron at 52 g ha−1 alone at either timing. Late winter applications of amicarbazone at 196 g ha−1 alone provided poor annual bluegrass control (<70%) in 2 of 3 years while applications at turf greenup provided ≥88% control in all 3 years. Pronamide provided fair control (70 to 78%) and excellent control (≥90%) of annual bluegrass in 2 of 3 years when applied at dormancy or at greenup, respectively. All flazasulfuron treatments caused 36 to 54% injury when applied at greenup but single applications at dormancy caused 13 to 29% injury. Amicarbazone and pronamide alone never injured seashore paspalum greater than 17% at both application timings and treatments at greenup provided the best combinations of annual bluegrass control and turf tolerance.
Applied Turfgrass ScienceVolume 11, Issue 1 ATS-2014-0049-BR p. 1-4 Brief Turfgrass Winterkill Observations from the Transition Zone Michael D. Richardson, Corresponding Author Michael D. Richardson mricha@uark.edu Dep. Of Horticulture, Univ. of Arkansas, Fayetteville, AR, 72701Corresponding author (mricha@uark.edu).Search for more papers by this authorJames T. Brosnan, James T. Brosnan Dep. of Plant Sciences, Univ. of Tennessee, Knoxville, TN, 37996Search for more papers by this authorDouglas E. Karcher, Douglas E. Karcher Dep. Of Horticulture, Univ. of Arkansas, Fayetteville, AR, 72701Search for more papers by this author Michael D. Richardson, Corresponding Author Michael D. Richardson mricha@uark.edu Dep. Of Horticulture, Univ. of Arkansas, Fayetteville, AR, 72701Corresponding author (mricha@uark.edu).Search for more papers by this authorJames T. Brosnan, James T. Brosnan Dep. of Plant Sciences, Univ. of Tennessee, Knoxville, TN, 37996Search for more papers by this authorDouglas E. Karcher, Douglas E. Karcher Dep. Of Horticulture, Univ. of Arkansas, Fayetteville, AR, 72701Search for more papers by this author First published: 10 January 2014 https://doi.org/10.2134/ATS-2014-0049-BRCitations: 1 All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher. Permission for printing and for reprinting the material contained herein has been obtained by the publisher. Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Citing Literature Volume11, Issue12014Pages 1-4 RelatedInformation
Applied Turfgrass ScienceVolume 11, Issue 1 ATS-2014-0057-BR p. 1-4 Brief Turfgrass Winterkill Observations from the Great Lakes Region Kevin W. Frank, Corresponding Author Kevin W. Frank frankk@msu.edu Dep. of Plant, Soil and Microbial Sciences, Michigan State Univ., East Lansing, MI, 48834-1325Corresponding author (frankk@msu.edu).Search for more papers by this author Kevin W. Frank, Corresponding Author Kevin W. Frank frankk@msu.edu Dep. of Plant, Soil and Microbial Sciences, Michigan State Univ., East Lansing, MI, 48834-1325Corresponding author (frankk@msu.edu).Search for more papers by this author First published: 10 January 2014 https://doi.org/10.2134/ATS-2014-0057-BR All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher. Permission for printing and for reprinting the material contained herein has been obtained by the publisher. Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Volume11, Issue12014Pages 1-4 RelatedInformation
Applied Turfgrass ScienceVolume 11, Issue 1 ATS-2013-0065-BR p. 1-2 Brief Effect of Common Bermudagrass Mowing Height on Large Crabgrass Incidence J. A. Hoyle, Corresponding Author J. A. Hoyle Assistant Professor jahoyle@ksu.edu Department of Horticulture, Forestry and Recreation Resources, Kansas State Univ., 2021 Throckmorton Plant Sciences Center, Manhattan, KS, 66506Corresponding author (jahoyle@ksu.edu).Search for more papers by this authorT. W. Gannon, T. W. Gannon Assistant Professor Department of Horticulture, Forestry and Recreation Resources, Kansas State Univ., 2021 Throckmorton Plant Sciences Center, Manhattan, KS, 66506Search for more papers by this authorF. H. Yelverton, F. H. Yelverton Professor Dep. of Crop Science, North Carolina State Univ., 4401 Williams Hall, Campus Box 7620, Raleigh, NC, 27695Search for more papers by this author J. A. Hoyle, Corresponding Author J. A. Hoyle Assistant Professor jahoyle@ksu.edu Department of Horticulture, Forestry and Recreation Resources, Kansas State Univ., 2021 Throckmorton Plant Sciences Center, Manhattan, KS, 66506Corresponding author (jahoyle@ksu.edu).Search for more papers by this authorT. W. Gannon, T. W. Gannon Assistant Professor Department of Horticulture, Forestry and Recreation Resources, Kansas State Univ., 2021 Throckmorton Plant Sciences Center, Manhattan, KS, 66506Search for more papers by this authorF. H. Yelverton, F. H. Yelverton Professor Dep. of Crop Science, North Carolina State Univ., 4401 Williams Hall, Campus Box 7620, Raleigh, NC, 27695Search for more papers by this author First published: 02 January 2014 https://doi.org/10.2134/ATS-2013-0065-BR All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher. Permission for printing and for reprinting the material contained herein has been obtained by the publisher. Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume11, Issue12014Pages 1-2 RelatedInformation
Applied Turfgrass ScienceVolume 11, Issue 1 ATS-2014-0024-BR p. 1-3 Brief Fall or Late Winter Applications of Preemergence Herbicides Rarely Provide Season-long Control of Crabgrass (Digitaria spp) in Nebraska Zachary Reicher, Corresponding Author Zachary Reicher Professor zreicher2@unl.edu Dep. of Agronomy & Horticulture, Univ. of Nebraska–Lincoln, Lincoln, NE, 68583Corresponding author (zreicher2@unl.edu).Search for more papers by this authorMatt Sousek, Matt Sousek Research Technologist Dep. of Agronomy & Horticulture, Univ. of Nebraska–Lincoln, Lincoln, NE, 68583Search for more papers by this authorRoch Gaussoin, Roch Gaussoin Professor Dep. of Agronomy & Horticulture, Univ. of Nebraska–Lincoln, Lincoln, NE, 68583Search for more papers by this author Zachary Reicher, Corresponding Author Zachary Reicher Professor zreicher2@unl.edu Dep. of Agronomy & Horticulture, Univ. of Nebraska–Lincoln, Lincoln, NE, 68583Corresponding author (zreicher2@unl.edu).Search for more papers by this authorMatt Sousek, Matt Sousek Research Technologist Dep. of Agronomy & Horticulture, Univ. of Nebraska–Lincoln, Lincoln, NE, 68583Search for more papers by this authorRoch Gaussoin, Roch Gaussoin Professor Dep. of Agronomy & Horticulture, Univ. of Nebraska–Lincoln, Lincoln, NE, 68583Search for more papers by this author First published: 07 January 2014 https://doi.org/10.2134/ATS-2014-0024-BRCitations: 1 All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher. Permission for printing and for reprinting the material contained herein has been obtained by the publisher. Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article.Citing Literature Volume11, Issue12014Pages 1-3 RelatedInformation
Applied Turfgrass ScienceVolume 11, Issue 1 ATS-2014-0053-BR p. 1-3 Brief Turfgrass Winterkill Observations from the Upper Great Plains: Desiccation and Cold Temperature William C. Kreuser, Corresponding Author William C. Kreuser wkreuser2@unl.edu Dep. of Agronomy and Horticulture, Univ. of Nebraska-Lincoln, Lincoln, NE, 68583-0915Corresponding author (wkreuser2@unl.edu).Search for more papers by this author William C. Kreuser, Corresponding Author William C. Kreuser wkreuser2@unl.edu Dep. of Agronomy and Horticulture, Univ. of Nebraska-Lincoln, Lincoln, NE, 68583-0915Corresponding author (wkreuser2@unl.edu).Search for more papers by this author First published: 10 January 2014 https://doi.org/10.2134/ATS-2014-0053-BRCitations: 3 All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher. Permission for printing and for reprinting the material contained herein has been obtained by the publisher. Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article.Citing Literature Volume11, Issue12014Pages 1-3 RelatedInformation
Many turfgrass extension bulletins and herbicide labels recommend prolonging or suspending mowing practices 1 day or more before and/or after herbicide applications to increase efficacy. However, the effect of mowing timing on herbicide efficacy has not been sufficiently explored. Field experiments were conducted to evaluate the influence of herbicide selection and mowing timing relative to herbicide application on the control of ground ivy (Glechoma hederacea L.). The three mowing treatments included mowing 30 min before herbicide application, mowing 30 min after herbicide application, and not mowing for at least 7 days prior to and at least 3 days after herbicide application. Aminocyclopyrachlor resulted in the greatest reduction of ground ivy cover in 2011 and 2012. Like aminocyclopyrachlor, 2,4-D ester and metsulfuron reduced ground ivy cover both years, while triclopyr reduced ground ivy cover as well as aminocyclopyrachlor in 2012. Although 2,4-D + mecoprop (MCPP) + dicamba was not among the best performing herbicides, it reduced ground ivy cover compared with the untreated check in both years. There were no mowing or mowing-by-herbicide interactions on any of the rating dates. Thus, this research suggests that the timing of lawn mowing relative to herbicide application has little measurable impact on herbicide efficacy on ground ivy.
Weed control is important during establishment of cool-season grasses, especially when seeded in spring near summer annual weed germination. Our objectives were to determine (i) turf safety and weed control from sequential applications of newly-released herbicides on tall fescue at three seeding dates (May, June, July) and (ii) turf safety and weed control from newly-released herbicides applied at seeding or shortly after emergence of spring-seeded Kentucky bluegrass or tall fescue. No herbicides tested negatively affected turfgrass establishment and usually improved turf establishment by reducing weed competition. Mesotrione consistently provided effective weed control and turf cover from either single or sequential applications over different locations, years, seeding dates, and turf species. Quinclorac or siduron applied as single or sequential applications or quinclorac+carfentrazone as a single application provided effective weed control and turf cover depending on seeding date and application regime. Although spring seeding can be achieved with high maintenance, it is strongly recommended to seed cool season grasses at the optimal time from late summer to early fall.
Laboratory and field studies were conducted in 2010 and 2011 to evaluate the volatility of commonly used turfgrass broadleaf herbicides when applied to tall fescue (Lolium arundinaceum Schreb.). Herbicides were applied at the highest label rate for dandelion (Taraxacum officinale G.H. Weber ex Wiggers) control. Turfgrass flats treated with herbicides were placed in enclosures containing tomato plants. In laboratory experiments, tomatoes exposed to turfgrass treated with products containing amine formulations of synthetic auxin herbicides exhibited minimal injury, but exposure to products containing low-volatile ester formulations caused significant negative effects on tomato quality, epinasty, and callus formation. Generally, products containing low-volatile ester formulations of synthetic auxin herbicides exhibited less volatility, compared to 2,4-D butyl ester (volatile standard). A subsequent field study corroborated the laboratory results, although injury symptoms were less severe. Turfgrass managers should avoid herbicides containing low-volatile ester formulations when vulnerable non-target plants are nearby, and/or when environmental conditions such as high temperature favor volatility.
Applied Turfgrass ScienceVolume 11, Issue 1 ATS-2014-0012-BR p. 1-2 Brief Civitas Increases Clipping Yield on a Cool-Season Putting Green William C. Kreuser, Corresponding Author William C. Kreuser wkreuser2@unl.edu Dep. of Agronomy and Horticulture, Univ. of Nebraska-Lincoln, Lincoln, NE, 68583Corresponding author (wkreuser2@unl.edu).Search for more papers by this authorFrank S. Rossi, Frank S. Rossi Dep. of Horticulture, Cornell Univ., Ithaca, NY, 14853Search for more papers by this author William C. Kreuser, Corresponding Author William C. Kreuser wkreuser2@unl.edu Dep. of Agronomy and Horticulture, Univ. of Nebraska-Lincoln, Lincoln, NE, 68583Corresponding author (wkreuser2@unl.edu).Search for more papers by this authorFrank S. Rossi, Frank S. Rossi Dep. of Horticulture, Cornell Univ., Ithaca, NY, 14853Search for more papers by this author First published: 07 January 2014 https://doi.org/10.2134/ATS-2014-0012-BRCitations: 2 All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher. Permission for printing and for reprinting the material contained herein has been obtained by the publisher. Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article.Citing Literature Volume11, Issue12014Pages 1-2 RelatedInformation
Applied Turfgrass ScienceVolume 11, Issue 1 ATS-2013-0044-BR p. 1-2 Brief Seasonal Timing of Glyphosate Application Influences Control of Poa trivialis Cole Thompson, Corresponding Author Cole Thompson Graduate Research Assistant cst@ksu.edu Dep. of Horticulture, Forestry, and Recreation Resources, Kansas State Univ., Manhattan, KS, 66506Corresponding author (cst@ksu.edu).Search for more papers by this authorJack Fry, Jack Fry Professor Dep. of Horticulture, Forestry, and Recreation Resources, Kansas State Univ., Manhattan, KS, 66506Search for more papers by this authorMegan Kennelly, Megan Kennelly Associate Professor Dep. of Plant Pathology, Kansas State Univ., Manhattan, KS, 66506Search for more papers by this authorMatt Sousek, Matt Sousek Research Technologist Dep. of Agronomy & Horticulture, Univ. of Nebraska-Lincoln, Lincoln, NE, 68583Search for more papers by this authorZac Reicher, Zac Reicher Professor Dep. of Agronomy & Horticulture, Univ. of Nebraska-Lincoln, Lincoln, NE, 68583Search for more papers by this author Cole Thompson, Corresponding Author Cole Thompson Graduate Research Assistant cst@ksu.edu Dep. of Horticulture, Forestry, and Recreation Resources, Kansas State Univ., Manhattan, KS, 66506Corresponding author (cst@ksu.edu).Search for more papers by this authorJack Fry, Jack Fry Professor Dep. of Horticulture, Forestry, and Recreation Resources, Kansas State Univ., Manhattan, KS, 66506Search for more papers by this authorMegan Kennelly, Megan Kennelly Associate Professor Dep. of Plant Pathology, Kansas State Univ., Manhattan, KS, 66506Search for more papers by this authorMatt Sousek, Matt Sousek Research Technologist Dep. of Agronomy & Horticulture, Univ. of Nebraska-Lincoln, Lincoln, NE, 68583Search for more papers by this authorZac Reicher, Zac Reicher Professor Dep. of Agronomy & Horticulture, Univ. of Nebraska-Lincoln, Lincoln, NE, 68583Search for more papers by this author First published: 07 January 2014 https://doi.org/10.2134/ATS-2013-0044-BRCitations: 2 All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher. Permission for printing and for reprinting the material contained herein has been obtained by the publisher. Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article.Citing Literature Volume11, Issue12014Pages 1-2 RelatedInformation
Etiolation is an abnormal elongation and chlorosis of turfgrass plants that has become problematic in recent years, and bacteria have been implicated as causal agents. The frequent reports of etiolation are of concern to turfgrass managers, since management practices for bacterial diseases in turf are not well developed. The purpose of this research trial was to evaluate fungicides and nonregistered antibiotics for management of etiolation in creeping bentgrass turf. This 2-year field study evaluated oxytetracycline, streptomycin sulfate, acibenzolar-S-methyl + chlorothalonil (ASM + C), potassium phosphite (PPP), hydrogen dioxide, fosetyl-Al [pigmented (FAP) and nonpigmented (FA)], and copper + mancozeb for their effects on etiolation caused by Xanthomonas translucens on creeping bentgrass putting-green turf. Reductions in etiolation severity were observed with oxytetracycline treatment in both years and with ASM + C in the second year of study. While ASM + C did not reduce etiolation in the first year, turf quality with ASM + C alone and in combination with PPP was superior to all other treatments in both years. While PPP and FAP did not reduce etiolation, turf quality of these plots was often better than the control. Both antibiotics in addition to copper + mancozeb had phytotoxicity that reduced turf quality. Preventative applications of ASM + C were the most effective in reducing etiolation of creeping bentgrass while maintaining turf quality.
Amicarbazone controls annual bluegrass (Poa annua L.) in bermudagrass [Cynodon dactylon (L.) Pers.] turf overseeded with perennial ryegrass (Lolium perenne L.). There is, however, a risk of perennial ryegrass injury, depending on application timing. The objective of this research was to determine the effect of the timings between overseeding and amicarbazone applications on perennial ryegrass. Amicarbazone was applied at 0, 2.1, and 2.8 oz a.i./acre at 6, 8, 10, and 12 weeks after overseeding (WAOS) in Florida and South Carolina. In Florida, perennial ryegrass maximum injury was greater at 6 WAOS (79%) than at 8 to 12 WAOS (6 to 30%). Conversely, in South Carolina, minor perennial ryegrass injury was observed in plots treated 6 to 10 WAOS, but 48% injury was observed in plots treated 12 WAOS. In all sites, plots treated at 6 WAOS exhibited up to fourfold reduction in perennial ryegrass cover compared with the untreated control (88%). Overall, annual bluegrass control was acceptable to excellent (73–99%) with amicarbazone applications in South Carolina. In Florida 24 weeks after initial treatment, all treatments controlled annual bluegrass 64 to 98% except applications at 6 WAOS (25–42%). Results suggest that amicarbazone should be applied at least 8 to 10 WAOS to minimize loss of perennial ryegrass cover, but applications at this time will provide adequate annual bluegrass control.
Applied Turfgrass ScienceVolume 11, Issue 1 ATS-2013-0031-BR p. 1-2 Brief Recovery of ‘Chisholm’ Zoysiagrass after Sod Harvest as Affected by Simazine and Nitrogen Fertility Cole Thompson, Corresponding Author Cole Thompson Graduate Research Assistant cst@ksu.edu Dep. of Horticulture, Forestry, and Recreation Resources, Kansas State University, Manhattan, KS, 66506Corresponding author (cst@ksu.edu).Search for more papers by this authorJack Fry, Jack Fry Professor Dep. of Horticulture, Forestry, and Recreation Resources, Kansas State University, Manhattan, KS, 66506Search for more papers by this author Cole Thompson, Corresponding Author Cole Thompson Graduate Research Assistant cst@ksu.edu Dep. of Horticulture, Forestry, and Recreation Resources, Kansas State University, Manhattan, KS, 66506Corresponding author (cst@ksu.edu).Search for more papers by this authorJack Fry, Jack Fry Professor Dep. of Horticulture, Forestry, and Recreation Resources, Kansas State University, Manhattan, KS, 66506Search for more papers by this author First published: 05 January 2014 https://doi.org/10.2134/ATS-2013-0031-BR All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher. Permission for printing and for reprinting the material contained herein has been obtained by the publisher. Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article. Volume11, Issue12014Pages 1-2 RelatedInformation
Larvae of the Japanese beetle, Popillia japonica Newman (Coleoptera: Scarabaeidae), are rarely found in golf course putting greens despite seemingly ideal characteristics. Sand-based putting green root zones are often maintained at relatively low volumetric water contents that could be unsuitable for survival of P. japonica eggs or larvae. Putting greens also receive frequent applications of fungicides throughout the growing season, and it is possible that these chemicals deter females from laying eggs. This study was conducted to determine how the volumetric water content of sand putting green soils and the application of the fungicide active ingredients propiconazole and chlorothalonil affect the oviposition (i.e., egg laying) behavior of the Japanese beetle. In a soil moisture choice assay, adult females avoided investigating (i.e., digging) in soils maintained just above the wilting point of the turfgrass (∼5% volumetric water content). In another experiment, neither the application of propiconazole nor chlorothalonil had any effect on female investigation. Recovery of larvae was low in both assays, possibly due to the coarse texture of the sandy soils used in these studies. These findings suggest that conservative irrigation could lessen infestations of P. japonica, and that single applications of propiconazole or chlorothalonil do not affect female oviposition choice.
Applied Turfgrass ScienceVolume 11, Issue 1 ATS-2013-0004-BR p. 1-3 Brief Influence of Simulated Rainfall on Large Crabgrass Control with Two Quinclorac-Containing Herbicides J. T. Brosnan, Corresponding Author J. T. Brosnan jbrosnan@utk.edu Dep. of Plant Sciences, Univ. of Tennessee, Knoxville, TN, 37996Corresponding author (jbrosnan@utk.edu).Search for more papers by this authorG. K. Breeden, G. K. Breeden Dep. of Plant Sciences, Univ. of Tennessee, Knoxville, TN, 37996Search for more papers by this authorJ. J. Vargas, J. J. Vargas Dep. of Plant Sciences, Univ. of Tennessee, Knoxville, TN, 37996Search for more papers by this author J. T. Brosnan, Corresponding Author J. T. Brosnan jbrosnan@utk.edu Dep. of Plant Sciences, Univ. of Tennessee, Knoxville, TN, 37996Corresponding author (jbrosnan@utk.edu).Search for more papers by this authorG. K. Breeden, G. K. Breeden Dep. of Plant Sciences, Univ. of Tennessee, Knoxville, TN, 37996Search for more papers by this authorJ. J. Vargas, J. J. Vargas Dep. of Plant Sciences, Univ. of Tennessee, Knoxville, TN, 37996Search for more papers by this author First published: 01 January 2014 https://doi.org/10.2134/ATS-2013-0004-BRCitations: 1 All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher. Permission for printing and for reprinting the material contained herein has been obtained by the publisher. Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article.Citing Literature Volume11, Issue12014Pages 1-3 RelatedInformation
Applied Turfgrass ScienceVolume 11, Issue 1 ATS-2014-0018-BR p. 1-2 Brief Growth of Bella Bluegrass Compared to a Standard KBG Blend and Tall Fescue Paul G. Johnson, Corresponding Author Paul G. Johnson Professor paul.johnson@usu.edu Dep. of Plants, Soils & Climate, Utah State Univ., Logan, UTCorresponding author (paul.johnson@usu.edu).Search for more papers by this authorXin Dai, Xin Dai Data Analyst Utah Agricultural Experiment Station, Utah State Univ., Logan, UTSearch for more papers by this authorRoberto Gurgel, Roberto Gurgel Research Executive Director Sod Solutions, Inc., Mt. Pleasant, SCSearch for more papers by this author Paul G. Johnson, Corresponding Author Paul G. Johnson Professor paul.johnson@usu.edu Dep. of Plants, Soils & Climate, Utah State Univ., Logan, UTCorresponding author (paul.johnson@usu.edu).Search for more papers by this authorXin Dai, Xin Dai Data Analyst Utah Agricultural Experiment Station, Utah State Univ., Logan, UTSearch for more papers by this authorRoberto Gurgel, Roberto Gurgel Research Executive Director Sod Solutions, Inc., Mt. Pleasant, SCSearch for more papers by this author First published: 07 January 2014 https://doi.org/10.2134/ATS-2014-0018-BR All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher. Permission for printing and for reprinting the material contained herein has been obtained by the publisher. Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume11, Issue12014Pages 1-2 RelatedInformation
