| |
| Web URL(s): | https://scisoc.confex.com/scisoc/2016am/webprogram/Paper100384.html
Last checked: 11/22/2016 |
|---|
| Publication Type:
| Report |
|---|
| Content Type: | Abstract or Summary only |
|---|
| Author(s): | Hempfling, James W.;
Clarke, Bruce B.;
Murphy, James A. |
|---|
| Author Affiliation: | Hempfling: Rutgers University, New Brunswick, NJ; Clarke and Murphy: Department of Plant Biology and Pathology, Rutgers University, New Brunswick, NJ |
|---|
| Title: | Best management practices for anthracnose on annual bluegrass |
|---|
| Section: | 5 minute rapid - USGA/GCSAA sponsored research
Other records with the "5 minute rapid - USGA/GCSAA sponsored research" Section
C05 turfgrass science
Other records with the "C05 turfgrass science" Section
|
|---|
| Meeting Info.: | Phoenix, Arizona: November 6-9, 2016 |
|---|
| Source: | ASA, CSSA and SSSA International Annual Meetings. 2016, p. 100384. |
|---|
| Publishing Information: | [Milwaukee, Wisconsin]: [American Society of Agronomy and the Entomological Society of America] |
|---|
| # of Pages: | 1 |
|---|
| Keywords: | TIC Keywords: Anthracnose; Ball roll distance; Best management practices; Colletotrichum graminicola; Disease severity; Disease control; Mowing height; Nitrogen fertilization; Poa annua; Sand topdressings
|
|---|
| Abstract/Contents: | "Anthracnose disease of annual bluegrass [Poa annua L. f. reptans (Hausskn) T. Koyama] (ABG)] caused by Colletotrichum cereale Manns can be suppressed by increased N fertilization, mowing height, and sand topdressing. The relative importance of these factors on anthracnose severity and ball roll distance (BRD) on ABG putting green turf was evaluated in a 3-yr field study in North Brunswick, NJ. A 2 x 2 x 2 factorial of mowing height (2.3 and 3.2 mm), N fertility (100 and 200 kg ha-1 yr-1), and sand topdressing (46 and 98 Mg ha-1 yr-1 in 2012; 37 and 81 Mg ha-1 yr-1 during 2013 and 2014) was arranged in a split-split-plot design. The greatest reduction in disease severity was achieved with the practice of applying greater N fertilization (200 kg ha-1) compared to the practices of higher mowing (3.2 mm) or greater sand topdressing (81/98 Mg ha-1). Acceptable disease suppression without fungicides occurred during moderate anthracnose epidemics in 2012 and 2014 (≤36 and 35% average turf area infested, respectively) when increased N fertilization was combined with higher mowing and greater sand topdressing. No treatment produced acceptable disease suppression during the severe epidemic of 2013 (≤76% average turf area infested). Under lower mowing (3.2 mm), BRD was acceptable on 91 to 96% of observation dates and accordingly was less affected by greater N fertilization. Not surprisingly, BRD was often unacceptable (< 2.9 m) under higher mowing, especially when combined with greater N fertilization. Thus, when adjustments in turf management practices are needed to increase BRD, lowering the mowing height would provide the desired enhancement and the least risk for increasing anthracnose, especially if greater N fertilization and increased topdressing are also practiced." |
|---|
| Language: | English |
|---|
| References: | 0 |
|---|
| Note: | This item is an abstract only!
"300-8" |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Hempfling, J. W., B. B. Clarke, and J. A. Murphy. 2016. Best management practices for anthracnose on annual bluegrass. Agron. Abr. p. 100384. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=278284 |
| If there are problems with this record, send us feedback about record 278284. |
| Choices for finding the above item: |
|---|
| Web URL(s):
https://scisoc.confex.com/scisoc/2016am/webprogram/Paper100384.html
Last checked: 11/22/2016 |
| 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) |
