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| Web URL(s): | https://www.plantmanagementnetwork.org/pub/trial/pdmr/reports/2013/T021.pdf
Last checked: 11/14/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Report |
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| Author(s): | Aynardi, B.;
Uddin, W. |
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| Author Affiliation: | Department of Plant Pathology, The Pennsylvania State University, University Park, PA |
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| Title: | Chemical control of anthracnose basal rot in a mixed creeping bentgrass and annual bluegrass putting green, 2012 |
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| Section: | Turfgrass
Other records with the "Turfgrass" Section
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| Source: | PDMR: Plant Disease Management Reports. Vol. 7, 2013, p. T021. |
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| Publishing Information: | St. Paul, Minnesota: American Phytopathological Society |
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| # of Pages: | 2 |
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| Related Web URL: | https://www.plantmanagementnetwork.org/pub/trial/PDMR/volume7/abstracts/T021.asp
Last checked: 02/28/2017
Notes: Report Summary |
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| Keywords: | TIC Keywords: Acibenzolar-s-methyl + chlorothalonil; Agrostis stolonifera; Anthracnose; Application methods; Bifenthrin; Chlorothalonil; Disease severity; Fertilization; Golf greens; Phytotoxicity; Poa annua; Tank mix; Turfgrass quality
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| Trade Names: | Spectro; Daconil Action; Velista; Daconil Ultrex |
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| Abstract/Contents: | "The study was conducted at the Valentine Turfgrass Center, University Park, PA, on a mixed stand of 15% creeping bentgrass and 85% annual bluegrass putting green. The soil was a modified sandy clay loam with a pH of 7.1. Plots were mowed six times per week at 0.195-in. Bifenthrin was applied on 25 Jul at 0.25 oz/1000 sq ft of product for black cutworm. The trial area was fertilized with 0.25 lb N/1000 sq. ft. with urea (46-0-0) and 3.0 fl oz of Quelant-K 1-0-30 liquid fertilizer on 16 May. No further fertilization practices were applied to the trial area. All products were applied with a CO2-powered sprayer at 40 psi using a TeeJet 11008E nozzle in water equivalent to 2.0 gal per 1000 sq ft. Treatment applications started on 22 May (DuPont Program) and 29 May, 13 and 26 Jun, 11 and 27 Jul, and 3 Aug for 14-day intervals. Treatment applications were made on 29 May, 19 Jun, 11 Jul, and 3 Aug for 21-day intervals. Anthracnose symptoms resulted due to natural pathogen infestation. Anthracnose basal rot on only the annual bluegrass was evaluated, as the creeping bentgrass was asymptomatic. Percentage of creeping bentgrass per plot ranged from 05 to 20%. Disease severity (Index 1-10; 0=plants asymptomatic; 10=>90% annual bluegrass turf symptomatic) was assessed on 12, 19, 26 Jun, and 3, 10, and 17 Jul. Turfgrass quality ratings were not recorded. Data were subjected to analysis of variance and means separation using the Waller-Duncan k-ratio test (k=100). Anthracnose development was moderate in early summer, and increased steadily through the month of June and into early-July. QP Enclave at the 3.0 fl oz rate and Foursome on a 14-day interval, as well as QP Enclave at the 3.0 and 4.0 fl oz rates tank-mixed with QP Fosetyl-Al and Foursome on 14 and 21-day intervals, respectively, provide excellent control (<1.5 mean severity rating). Tank-mixes containing Velista, the DuPont Program, and a rotating tank-mix of Torque and Affirm with Spectro, Daconil Action, Daconil Ultrex, and Velista provided good control of anthracnose (<3.3 mean severity rating). No phytotoxicity was observed in the experiment on any of the assessment days." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is as abstract and tables only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Aynardi, B., and W. Uddin. 2013. Chemical control of anthracnose basal rot in a mixed creeping bentgrass and annual bluegrass putting green, 2012. PDMR: Plant Dis. Manage. Rep. 7:p. T021. |
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| Web URL(s):
https://www.plantmanagementnetwork.org/pub/trial/pdmr/reports/2013/T021.pdf
Last checked: 11/14/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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