Creeping bentgrass seedling tolerance to herbicides and paclobutrazol

John Edward Kaminski, III, Peter H. Dernoeden, Cale A. Bigelow

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The tolerance of creeping bentgrass (Agrostis stolonifera L.) seedlings to many herbicides has not been evaluated. Three field studies were conducted between fall and spring from 1998 to 2002 to assess creeping bentgrass seedling tolerance to five herbicides and paclobutrazol. The primary objectives of this investigation were to assess bentgrass tolerance to these chemicals when applied at various timings following seedling emergence, and establishment of new seedlings as influenced by potential soil residues in the spring following a fall application of the chemicals. Treatments were applied 2, 4, or 7 weeks after either 'Crenshaw' or 'L-93' creeping bentgrass seedlings had emerged. Siduron (6.7 and 9.0 kg·ha-1) and bensulide (8.4 kg·h-1) were noninjurious when applied two weeks after seedling emergence (2 WASE). Bensulide (14 kg·ha-1), ethofumesate (0.84 kg·ha-1), prodiamine (0.36 kg·ha-1) and paclobutrazol (0.14 kg·ha-1) were too injurious to apply 2 WASE, but they were generally safe to apply at 4 WASE. Chlorsulfuron (0.14 kg·ha-1) was extremely phytotoxic to seedlings when applied 2 WASE. Plots were treated with glyphosate and overseeded the following spring. The overwintering soil residuals of prodiamine and bensulide (14.0 kg·ha-1) unacceptably reduced spring establishment. All other herbicides and paclobutrazol had little or no adverse residual effects on spring establishment. Chemical names used: N-(phosphonomethyl)gycline (glyphosate); (±)-(R*,R*)-beta- [(4-chlorophenyl)methyl]-alpha-(1,1-dimethylethyl)-1H-1,2,4-triazole-1-ethanol (paclobutrazol); 2-ethoxy-2,3-dihydro-3,3-dimethyl-5-benzofuranyl methanesulfonate (ethofumesate); S-(0,0-diisopropyl phosphorodithioate) ester of N-(2-mercaptoethyl) benzenesulfonamide (bensulide); [1-(2-methylcyclohexyl)-3- phenylurea] (siduron); N3,N3-di-n-propyl-2,4-dinitro-6- (trifluoromethyl)-m-phenylenediamine (prodiamine); 2-chloro-N-[(4-methoxy-6- methyl-1,3,5-triazin-2-yl)aminocarbonyl] benzenesulfonamide (chlorsulfuron).

Original languageEnglish (US)
Pages (from-to)1126-1129
Number of pages4
JournalHortScience
Volume39
Issue number5
StatePublished - Aug 1 2004

Fingerprint

Agrostis stolonifera
paclobutrazol
prodiamine
herbicides
siduron
ethofumesate
seedlings
chlorsulfuron
seedling emergence
glyphosate
bensulide
Agrostis
triazoles
residual effects
overwintering
soil
esters
ethanol

All Science Journal Classification (ASJC) codes

  • Horticulture

Cite this

Kaminski, III, J. E., Dernoeden, P. H., & Bigelow, C. A. (2004). Creeping bentgrass seedling tolerance to herbicides and paclobutrazol. HortScience, 39(5), 1126-1129.
Kaminski, III, John Edward ; Dernoeden, Peter H. ; Bigelow, Cale A. / Creeping bentgrass seedling tolerance to herbicides and paclobutrazol. In: HortScience. 2004 ; Vol. 39, No. 5. pp. 1126-1129.
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Kaminski, III, JE, Dernoeden, PH & Bigelow, CA 2004, 'Creeping bentgrass seedling tolerance to herbicides and paclobutrazol', HortScience, vol. 39, no. 5, pp. 1126-1129.

Creeping bentgrass seedling tolerance to herbicides and paclobutrazol. / Kaminski, III, John Edward; Dernoeden, Peter H.; Bigelow, Cale A.

In: HortScience, Vol. 39, No. 5, 01.08.2004, p. 1126-1129.

Research output: Contribution to journalArticle

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AU - Kaminski, III, John Edward

AU - Dernoeden, Peter H.

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