| |
| Publication Type:
| Report |
|---|
| Author(s): | Watkins, J. E.;
Wit, L. A. |
|---|
| Author Affiliation: | Department of Plant Pathology, Department of Horticulture, University of Nebraska, Lincoln, NE |
|---|
| Title: | Evaluation of fungicides for the control of dollar spot, 1997 |
|---|
| Source: | Fungicide and Nematicide Tests. Vol. 53, 1998, p. 468. |
|---|
| Publishing Information: | St. Paul, MN: American Phytopathological Society |
|---|
| # of Pages: | 1 |
|---|
| Keywords: | TIC Keywords: Lolium perenne; Sclerotinia homoeocarpa; Fungicides; Disease control; Myclobutanil; Mancozeb; Penconazole; Chlorothalonil; Tank mix; Triadimefon; Azoxystrobin; Iprodione; Application rates; Experimental products; Propiconazole
|
|---|
| Abstract/Contents: | "Evaluation of fungicides for the control of dollar spot, 1997: Plots were located on a blend of perennial ryegrasses at the John Seaton Anderson Turf and Ornamental Research Facility at the University of Nebraska Agricultural Research and Development Center near Mead, NE. The experimental area was inoculated in early Jun with Sclerotinia homoecarpa cultured on sterilized tall fescue seed. The inoculum was applied with a 4-ft wide Gandy drop spreader calibrated to deliver 3 lb tall fescue inoculum per 1000 sq ft. Plots were mowed three times per week at a height of 0.62 in and maintained at 80% ETp. Eight lb/acre of Tupersan were applied for preemergence weed control along with 1 lb P/1000 sq ft on 7 May 97. Fungicide treatments were applied using a CO₂ pressurized (25 psi) backpack sprayer with a flat fan nozzle to 25 sq ft plots. The sprayer was calibrated to deliver 5 gal spray soultion per 1000 sq ft. Three replications per treatment were arranged in a randomized complete block design. Precipitation was below normal Apr through Sep, and temperatures were above normal Jun through Sep with intermittent cool periods in Jul and Aug. Dollar spot developed rapidly from late Jul to early Sep. Bayleton 25DF, 0.5 oz+Daconil 2787, 3 fl oz applied on a 14-day schedule was the most effective treatment. Chipco 26019 provided a moderate level of control with no significant differences occurring between the 2-, 3- or 4-fl oz rates. EXP 10790A 2SC applied every 14 days at 4 fl oz showed significantly less dollar spot than at the 2- or 3-fl oz rates. A similar trend was noted for EXP 10702B. Daconil Ultrex, 3.8 oz; Eagle 40W, 0.6 oz; and Bayleton 25DF, 0.5 oz applied every 14 days were more effective than Banner MAXX applied on a 21-day schedule. None of the treatments were phytotoxic." |
|---|
| Language: | English |
|---|
| References: | 0 |
|---|
| Note: | Tables |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Watkins, J. E., and L. A. Wit. 1998. Evaluation of fungicides for the control of dollar spot, 1997. Fungicide Nematicide Tests. 53:p. 468. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=55724 |
| If there are problems with this record, send us feedback about record 55724. |
| 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) |
