| |
| Publication Type:
| Report |
|---|
| Author(s): | Dernoeden, P.;
Wetzel, H.;
Fidanza, M. |
|---|
| Author Affiliation: | Dept. of Agronomy, Univ. of Maryland |
|---|
| Title: | Preventive control of summer patch with fungicides, 1992 |
|---|
| Source: | Fungicide and Nematicide Tests. Vol. 48, 1993, p. 360. |
|---|
| Publishing Information: | St. Paul, MN: American Phytopathological Society |
|---|
| # of Pages: | 1 |
|---|
| Keywords: | TIC Keywords: Poa pratensis; Magnaporthe poae; Summer patch; Fungicide application; Preventive control; Turfgrass quality
|
|---|
| Abstract/Contents: | "Fungicides were applied to the same plots on 4 Jun and 2 Jul 1992 using a CO2 pressurized (36 psi) sprayer in 2.5 gal water per 1000 ft2. Turf was seeded in Sep 1991 and was maintained at 1.5 inches. Soil was a chillum silt loam with a pH of 6.2 and 2.4% OM. Plots were 5 by 5 ft, and were arranged in a randomized complete block with four replications. Turf quality was visually assessed on a 0 to 10 scale where 0 = entire plot area brown and 10 = optimum greenness and density. Percent of plot area blighted was determined visually on a 0 to 100% linear scale. Environmental conditions were cool and moist all summer and as a result there was little summer patch blighting. Because the level of disease pressure was low, treatments with blight ratings exceeding 0.5% were subjectively judged as having provided unacceptable control. Except for Daconil 2787, fungicide-treated plots exhibited quality similar to untreated plots on 9 Jul and 5 Aug. Blighting by M. poae became apparent in late Aug. Most fungicides, except Chipco 26019, EXP 10064C (1.0 fl. oz.), Daconil 2787 and Daconil-blank, were associated with improved turf quality when compared to untreated plots on 28 Aug. Blight data collected 4 Sept suggested that EXP 10064C (1.0 fl. oz.); Chipco 26019 50WG; EXP 10064C + Chipco 26019 50WG (1.0 fl. oz. + 2.0 oz.); and 50WG (0.25 + 2.0 oz.); Lynx; and Rubigan had zero to only trace amounts of blighting. Highest blight ratings were recorded in Chipco 26019 50WG (4.0 oz) and Daconil 2787-treated plots. No treatments, however, significantly reduced or increased summer patch when compared to non-fungicide-treated plots." |
|---|
| Language: | English |
|---|
| References: | 0 |
|---|
| Note: | Table |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Dernoeden, P., H. Wetzel, and M. Fidanza. 1993. Preventive control of summer patch with fungicides, 1992. Fungicide Nematicide Tests. 48:p. 360. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=30041 |
| If there are problems with this record, send us feedback about record 30041. |
| Choices for finding the above item: |
|---|
| 
MSU catalog number: SB 951.3 .F82 |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |
