| |
Web URL(s): | http://www.plantmanagementnetwork.org/pub/trial/pdmr/volume3/abstracts/t01.asp Last checked: 08/31/2009 Notes: Report summary https://www.plantmanagementnetwork.org/pub/trial/pdmr/reports/2009/T001.pdf Last checked: 12/02/2016 Requires: PDF Reader Access conditions: Item is within a limited-access website |
Publication Type:
| Report |
Author(s): | Wong, F. P.;
Rios, J. C. |
Author Affiliation: | Department of Plant Pathology and Microbiology, University of California, Riverside, California |
Title: | Evaluation of fungicides for the control of large patch on warm season turf in southern California, 2008 |
Section: | Turfgrass Other records with the "Turfgrass" Section
|
Source: | PDMR: Plant Disease Management Reports. Vol. 3, 2009, p. T001. |
Publishing Information: | St. Paul, MN: American Phytopathological Society |
# of Pages: | 1 |
Keywords: | TIC Keywords: Cynodon dactylon; Cynodon dactylon x Cynodon transvaalensis; Disease control; Disease severity; Fungicide efficacy; Fungicide evaluation; Rhizoctonia blight; Rhizoctonia solani; Warm season turfgrasses
|
Cultivar Names: | Tifway 419 |
Geographic Terms: | Southern California |
Abstract/Contents: | "The objective of this experiment was to evaluate fungicides for the control of large patch. The experiment was conducted on golf course mixed common and hybrid bermudagrass rough in Riverside, CA. Turf was mowed three times a week at a cutting height of 1.5-in. The experiment was initiated in early March while the bermudagrass was in a semidormant state. Plots (6 ft x 6 ft) were laid out and each plot inoculated with 1 oz of oat seed infested with an isolate of Rhizoctonia solani AG2-2. The isolate was grown on autoclaved oat seed for 4 weeks prior to use. Inoculations were made by placing approximately 0.2 oz of infested seed 1- to 2-in. into the thatch at five locations in each plot using an "X" pattern of distribution. Irrigation was applied daily at 200% of base evapotranspiration until 1 May when irrigation was made daily at 70% ET. Disease development was observed beginning the second week of April. Fungicide applications were made on 16 Apr and 6 May. All fungicide treatments were applied with a CO2-powered boom sprayer fitted with four TeeJet 8002 nozzles at 35 psi, using the equivalent of 2 gallons of dilute fungicide solution per 1,000 sq ft. Disease severity was evaluated on 16 Apr, 6 and 27 May as percent of the plot affected by disease. Severity data was analyzed by ANOVA and mean comparisons were performed using Fisher's Protected LSD (α = 0.05). Initial disease development in the plots was not completely uniform, but no significant differences were shown between plots (P = 0.65). By 6 May, almost all fungicides gave some control of the disease, except for Rhapsody and EXP-2. The warm weather in May led to faster emergence of the bermudagrass from semi-dormancy and increased recovery, resulting in a decrease in disease symptoms by 27 May. By this date, all applications resulted in less disease than the untreated check, except for Rhapsody. ProStar and 26GT provided complete control of the disease at this time, although many treatments were statistically equal. No differences in turf color or quality was noted in the trial." |
Language: | English |
References: | 0 |
Note: | This item is as abstract and tables only! Tables |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Wong, F. P., and J. C. Rios. 2009. Evaluation of fungicides for the control of large patch on warm season turf in southern California, 2008. PDMR: Plant Dis. Manage. Rep. 3:p. T001. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=154487 |
| If there are problems with this record, send us feedback about record 154487. |
| Choices for finding the above item: |
| Web URL(s): http://www.plantmanagementnetwork.org/pub/trial/pdmr/volume3/abstracts/t01.asp Last checked: 08/31/2009 Notes: Report summary https://www.plantmanagementnetwork.org/pub/trial/pdmr/reports/2009/T001.pdf Last checked: 12/02/2016 Requires: PDF Reader Access conditions: Item is within a limited-access website |
| 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) |