| |
| Publication Type:
| Report |
|---|
| Author(s): | Nelson, E. B.;
Craft, C. M. |
|---|
| Author Affiliation: | Department of Plant Pathology, Cornell University, Ithaca, NY |
|---|
| Title: | Suppression of brown patch with top-dressings amended with composts and organic fertilizers |
|---|
| Source: | Biological and Cultural Tests for Control of Plant. Vol. 6, 1991, p. 90. |
|---|
| Publishing Information: | St. Paul, MN: The American Phytopathological Society |
|---|
| # of Pages: | 1 |
|---|
| Keywords: | TIC Keywords: Agrostis stolonifera; Brown patch; composts; organic fertilizers; topdressings
|
|---|
| Abstract/Contents: | "Field plots were established in 1989 on creeping bentgrass/ annual bluegrass putting greens at the Cornell University Turfgrass Field Laboratory in Ithaca, NY and at the Sagamore Resort, Bolton Landing, NY to evaluate various composts and organic fertilizers as amendments to top-dressings for the biological control of brown patch. The putting greens were constructed from the native soil in the area and contained mostly creeping bentgrass with small percentages of annual bluegrass intermixed. The greens were naturally infested with R. solani. They were maintained at a 5 mm cutting height and aerified (0.6 cm diameter tynes) one day prior to application of treatments. Top-dressing formulations consisted of 70% fine sand and 30% organic component (v:v) and were applied on 5 Jun in Ithaca and on 12 Jun in Bolton Landing at the rate of 500 cm3/m2 to 0.9m * 0.9m plots. Top-dressings were distributed by hand as uniformly as possible over the plot area then lightly rubbed-in to distribute the mixture into the turf canopy. Controls consisted of plots to which no top-dressing was applied. Propiconazole (1-[2-(2,4-dichlorophenyl)-4-propyl-1,3-dioxolan2yl)methyl]- 1H-1,2,4-triazole) (Banner) was applied as a fungicide standard at the rate of 173 mg a.i/m2. All plots were then watered-in by applying 0.6cm of irrigation. Top-dressings were applied at monthly intervals and plots evaluated for disease severity prior to each application on a scale of 0-10 where 0 = no disease and 10 = 100% of plot area diseased. All field experiments were established as a randomized complete block design with five replicates. Data were analyzed by analysis of variance and means were separated using the Least Significant Difference (LSD) test. Top-dressings amended with either Ringer Compost Plus,Ringer Greens Restore, or with Sustane were effective in both locations in suppressing brown patch. Control with these materials in Ithaca was as good as a high rate of Banner. Also in our Ithaca plots, top-dressings prepared from a sludge and leaf compost, both from Endicott, NY, significantly reduced brown patch severity as compared with untreated plots. These same composts were ineffective at Bolton Landing. Although ineffective in Ithaca trials, composts prepared from some horse and cow manures were effective at Bolton Landing. Most composts used in this study were one year old or younger with the exception of the leaf and sludge compost from Endicott, NY which were 2.5 yr old. In general, these immature composts were ineffective, particularly the sewage sludge composts." |
|---|
| Language: | English |
|---|
| References: | 0 |
|---|
| Note: | Table |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Nelson, E. B., and C. M. Craft. 1991. Suppression of brown patch with top-dressings amended with composts and organic fertilizers. Biol. Cult. Tests Control Plant Dis. 6:p. 90. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=27943 |
| If there are problems with this record, send us feedback about record 27943. |
| Choices for finding the above item: |
|---|
| 
MSU catalog number: SB 975 .B5 |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |
