| |
| DOI: | 10.2135/cropsci2005.12.0495 |
|---|
| Web URL(s): | https://dl.sciencesocieties.org/publications/cs/pdfs/46/6/2675
Last checked: 11/16/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website
https://dl.sciencesocieties.org/publications/cs/articles/46/6/2675
Last checked: 11/16/2016
Access conditions: Item is within a limited-access website |
|---|
| Publication Type:
| Refereed |
|---|
| Author(s): | McDonald, Steven J.;
Dernoeden, Peter H.;
Bigelow, Cale A. |
|---|
| Author Affiliation: | McDonald, and Dernoeden: Department of Natural Resource Sciences and Landscape Architecture, University of Maryland, College Park, Maryland; Bigelow: Department of Agronomy, Purdue University, West Lafayette, Indiana |
|---|
| Title: | Dollar spot and gray leaf spot severity as influenced by irrigation, chlorothalonil, paclobutrazol, and a wetting agent |
|---|
| Section: | Turfgrass science
Other records with the "Turfgrass science" Section
|
|---|
| Source: | Crop Science. Vol. 46, No. 6, November/December 2006, p. 2675-2684. |
|---|
| Publishing Information: | Madison, WI: Crop Science Society of America |
|---|
| # of Pages: | 10 |
|---|
| Related Web URL: | https://dl.sciencesocieties.org/publications/cs/abstracts/46/6/2675
Last checked: 11/16/2016
Notes: Abstract only |
|---|
| Keywords: | TIC Keywords: Dollar spot; Gray leaf spot; Irrigation; Chlorothalonil; Paclobutrazol; Disease severity; Wetting agents; Agrostis stolonifera; Lolium perenne; Comparisons
|
|---|
| Abstract/Contents: | "Creeping bentgrass [Agrostis stolonifera L. var. palustris (Huds.) Farw.] and perennial ryegrass (Lolium perenne L.) are commonly grown fairway grasses that are susceptible to dollar spot (Sclerotinia homoeocarpa F. T. Bennett; DS) and gray leaf spot [Pyricularia grisea (Cooke) Sacc; GLS.] diseases, respectively. This field study assessed the influence of two irrigation regimes (light and frequent nighttime versus deep and infrequent morning irrigation) and six chemical treatments including: chlorothalonil (tetrachloroisophthalonitrile), paclobutrazol [(2RS ,3RS)-1-(4-chlorophenyl)-4,4-dimethyl-2-(1 H-1,2,4-triazol-1-yl)pentan-3-ol; PB], wetting agent (polymeric polyoxyalkylene 95% oxoalkonyl hydroxyl polyoxlalkane diyl 5%; WA), chlorothalonil + PB, chlorothalonil + WA and chlorothalonil + PB + WA on DS and GLS severity over a 3-yr period. Dollar spot was more severe in late summer in creeping bentgrass that received deep and infrequent versus light and frequent irrigation in 2002 and 2004 and disease severity was negatively correlated with volumetric soil moisture (r=-0.77 to -0.96). Soil moisture levels above 0.25 cm3 cm-3 were associated with an improved ability of chlorothalonil, PB, and WA to suppress DS, but they had no effect on GLS. In 2002, GLS rapidly and severely damaged even fungicide-treated plots, and there was no irrigation effect. In 2004, gray leaf spot was more severe in light and frequent nighttime irrigated blocks versus deep and infrequent morning irrigated blocks. Chlorothalonil (8.0 kg a.i. ha-1) provided effective GLS control when applied on an 8-d interval in 2004 but only in infrequently irrigated blocks where disease pressure was less." |
|---|
| Language: | English |
|---|
| References: | 23 |
|---|
| Note: | Tables
Graphs |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
McDonald, S. J., P. H. Dernoeden, and C. A. Bigelow. 2006. Dollar spot and gray leaf spot severity as influenced by irrigation, chlorothalonil, paclobutrazol, and a wetting agent. Crop Sci. 46(6):p. 2675-2684. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=119223 |
| If there are problems with this record, send us feedback about record 119223. |
| Choices for finding the above item: |
|---|
| DOI: 10.2135/cropsci2005.12.0495 |
| Web URL(s):
https://dl.sciencesocieties.org/publications/cs/pdfs/46/6/2675
Last checked: 11/16/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website
https://dl.sciencesocieties.org/publications/cs/articles/46/6/2675
Last checked: 11/16/2016
Access conditions: Item is within a limited-access website |
| 
MSU catalog number: SB 183 .C7 |
| Find from within TIC:
Digitally in TIC by record number. |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |
