| |
| Web URL(s): | https://www.plantmanagementnetwork.org/pub/trial/bctests/reports/2005/T004.pdf
Last checked: 12/02/2016
Requires: PDF Reader
Access conditions: Item is within a limited access website |
|---|
| Publication Type:
| Report |
|---|
| Author(s): | Tredway, L. P.;
Butler, E. L. |
|---|
| Author Affiliation: | Department of Plant Pathology, North Carolina State University, Raleigh, North Carolina |
|---|
| Title: | Evaluation of EcoGuard for control of brown patch in creeping bent grass, 2004 |
|---|
| Source: | Biological and Cultural Tests for Control of Plant Diseases. Vol. 20, 2005, p. [1-2]. |
|---|
| Publishing Information: | St. Paul, MN: The American Phytopathological Society |
|---|
| # of Pages: | 2 |
|---|
| Keywords: | TIC Keywords: Product profile; Disease control; Brown patch; Fungicide evaluation; Fungicide combinations; Agrostis stolonifera; Fertilization; Application; Wetting agents; Diseases
|
|---|
| Trade Names: | EcoGuard |
|---|
| Abstract/Contents: | "EcoGuard, a biofungicide containing Bacillus licheniformis, was evaluated for its ability to suppress brown patch development when applied alone or in combination with select fungicides. This trial was conducted at the Lake Wheeler Turfgrass Field Lab in Raleigh, NC on 'A-1' creeping bentgrass maintained under golf course putting green conditions. Mowing was performed 3 times weekly at a height of 0.156 in. with clipping collected, and the site was irrigated to prevent drought stress. Fertilizer was applied as 19-5-9 on 5 Jan, 2 Feb, and 1 Apr (0.5 lb N/1000 sq ft) and as 25-5-15 on 5 Mar (1 lb N/1000 sq ft), 23 Apr (0.5 lb N/1000 sq ft), and 13 May (0.5 lb N/1000 sq ft), and as 29-2-3 (0.3 lb N/1000 sq ft) on 5 Jul, 23 Jul, and 11 Aug. Insect pests were suppressed with Dursban Pro (1 fl oz/1000 sq ft) on 7 May, 9 Jul, and 25 Aug and with Talstar (0.25 fl oz/1000 sq ft) on 9 May and 12 Aug. Surfide Wetting Agent (6 fl oz/1000 sq ft) was applied on 7 May, 14 Jun, and 9 Jul to control localized dry spots. Plots were 3.33 ft x 6 ft and were arranged in a randomized complete block with four replications. Fungicides were applied in water equivalent to 2 gal per 1000 sq ft with a CO2 powered sprayer at 40 psi using TeeJet 8004 nozzles. All treatments were initiated on 29 Jun and were applied at the appropriate intervals as indicated in the table. The experimental area was inoculated on 9 Jul using rye grain infested with Rhizoctonia solani to encourage brown patch development. Percent turf area exhibiting brown patch symptoms was assessed on 4 Aug, 13 Aug, 23 Aug, and 1 Sep. Data were subjected to analysis of variance and means separation by Waller-Duncan k-ratio t test (k=100). Little brown patch activity was observed in the experimental area prior to inoculation with Rhizoctonia solani on 9 Jul. Brown patch incidence increased steadily throughout August due to warm temperatures and a total of 9.9 inches of rainfall. All Daconil Ultrex and Heritage treatments provided excellent control of brown patch on 4 Aug, 13 Aug, 23 Aug, and 1 Sep. Addition of EcoGuard to Daconil Ultrex or Heritage in mixtures or rotations had no significant impact on brown patch control. Applications of EcoGuard, WP140, and WP145 did not significantly reduce in brown patch incidence on any rating date. Applications of EcoGuard on 14 day intervals induced a significant increase in brown patch incidence on all 4 rating dates, possibly due to the presence of plant available nitrogen in the product formulation. EcoGuard did not increase brown patch incidence when applied on 7 day intervals, however. Bacillus licheniformis may have some activity against R. solani which counteracted the nitrogen effect when applied on 7 day intervals. Alternatively, increased nitrogen rates provided by the 7 day treatment may have allowed the creeping bentgrass to outgrow the brown patch symptoms faster than the disease could develop." |
|---|
| Language: | English |
|---|
| References: | 0 |
|---|
| See Also: | Other items relating to: Wetting Agents |
|---|
| Note: | Tables |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Tredway, L. P., and E. L. Butler. 2005. Evaluation of EcoGuard for control of brown patch in creeping bent grass, 2004. Biol. Cult. Tests Control Plant Dis. 20:p. [1-2]. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=104683 |
| If there are problems with this record, send us feedback about record 104683. |
| Choices for finding the above item: |
|---|
| Web URL(s):
https://www.plantmanagementnetwork.org/pub/trial/bctests/reports/2005/T004.pdf
Last checked: 12/02/2016
Requires: PDF Reader
Access conditions: Item is within a limited access website |
| 
MSU catalog number: SB 975 .B5 |
| 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) |
