| |
| Web URL(s): | https://scisoc.confex.com/scisoc/2016am/webprogram/Paper99755.html
Last checked: 11/21/2016 |
|---|
| Publication Type:
| Report |
|---|
| Content Type: | Abstract or Summary only |
|---|
| Author(s): | Shelton, Camden D.;
McCall, David S.;
Ervin, Erik H.;
Askew, Shawn D. |
|---|
| Author Affiliation: | Shelton, Plant Pathology, Physiology, and Weed Science, Virginia Tech, Blacksburg, VA; McCall, Virginia Tech, Blacksburg, VA; Ervin, Virginia Tech University, Virginia Tech, Blacksburg, VA; and Askew, PPWS, Virginia Tech, Blacksburg, VA |
|---|
| Title: | Reducing chlorothalonil inputs for dollar spot suppression using ferrous sulfate |
|---|
| Section: | Applied pest management (student competition)
Other records with the "Applied pest management (student competition)" 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. 99755. |
|---|
| Publishing Information: | [Milwaukee, Wisconsin]: [American Society of Agronomy and the Entomological Society of America] |
|---|
| # of Pages: | 1 |
|---|
| Keywords: | TIC Keywords: Application rates; Chlorothalonil; Disease control; Dollar spot; Ferrous sulfate; Reduced application rates
|
|---|
| Trade Names: | Daconil WeatherStik |
|---|
| Abstract/Contents: | "Chlorothalonil, a multi-site contact fungicide, is commonly used to suppress the dollar spot pathogen both preventatively and when disease levels become unacceptable. Annual site-use limitations of chlorothalonil may prevent turf managers from achieving acceptable dollar spot control throughout the season. Previous research has demonstrated that ferrous sulfate applied at 48.8 kg ha-1 can suppress dollar spot epidemics without traditional fungicides, but how this may impact a chlorothalonil fungicide program is not known. Trials were established to determine how ferrous sulfate may be used to minimize chlorothalonil requirements through reducing active ingredient concentrations and extending the longevity, while still maintaining acceptable disease control, and explore lower use rates of ferrous sulfate for dollar spot suppression. Studies were conducted at the Virginia Tech Turfgrass Research Center in Blacksburg, VA in 2016 on a 007 creeping bentgrass putting green built to USGA specification. Chlorothalonil treatments were applied as follows: 0, 2.28, 4.57, 6.86, and 9.16 kg ai ha-1 (Daconil WeatherStik) across plots treated with and without 48.8 kg ha-1 ferrous sulfate (Hi-Yield FeSO4) applied bi-weekly. To date, chlorothalonil rates necessary to suppress dollar spot below a threshold of 30 infection centers m-2 were reduced from 5.72 kg ai ha-1 without ferrous sulfate to 1.15 kg ai ha-1 in plots receiving ferrous sulfate. Our research indicates that adding ferrous sulfate to a fungicide program may extended the longevity of control, and has currently saved three applications of chlorothalonil over the season. Additionally, this research indicates that ferrous sulfate rates can be reduced from 48.8 kg ha-1 to 24.4 kg ha-1 without sacrificing efficacy. This ongoing research will further explore how chlorothalonil requirements can be minimized for dollar spot suppression when ferrous sulfate use-rates are reduced, both on golf course putting greens and fairways." |
|---|
| Language: | English |
|---|
| References: | 0 |
|---|
| See Also: | See also related article "Chlorothalonil + ferrous sulfate = dollar spot suppression" Golf Course Management, 85(2) February 2017, p. 87, R=281047. R=281047 |
|---|
| Note: | This item is an abstract only!
"36-1" |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Shelton, C. D., D. S. McCall, E. H. Ervin, and S. D. Askew. 2016. Reducing chlorothalonil inputs for dollar spot suppression using ferrous sulfate. Agron. Abr. p. 99755. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=278102 |
| If there are problems with this record, send us feedback about record 278102. |
| Choices for finding the above item: |
|---|
| Web URL(s):
https://scisoc.confex.com/scisoc/2016am/webprogram/Paper99755.html
Last checked: 11/21/2016 |
| 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) |
