| |
| Publication Type:
| Report |
|---|
| Author(s): | Dernoeden, P. H.;
Fidanza, M. A. |
|---|
| Author Affiliation: | Dept. of Agronomy, Univ. of Maryland, College Park, MD |
|---|
| Title: | Brown patch control with Iprodione and experimental fungicides, 1991 |
|---|
| Source: | Fungicide and Nematicide Tests. Vol. 47, 1992, p. 313. |
|---|
| Publishing Information: | St. Paul, MN: American Phytopathological Society |
|---|
| Keywords: | TIC Keywords: Brown patch; Disease control; Iprodione; Fungicides
|
|---|
| Abstract/Contents: | "Fungicides were applied curatively on the dates shown in the data table. R. solani had blighted 10 to 15% of the plot area prior to the initial application on 11 Jun. Treatments were applied on either a 14, 21, or 28 day spray interval with a CO2 pressurized (36 psi) sprayer in 2.5 gal water per 1000 ft2. Soil was a Chillum silt loam with a pH of 5.9 and 1.6% OM. Plots were 5 by 5 ft, and were arranged in a randomized complete block with four replications. Percent of plot area blighted was visually assessed on a 0 to 100% scale. Ratings that exceed 5% plot area blighted would be considered unacceptable control on a golf course fairway. Disease pressure was severe throughout most of the test period. All treatments had provided good to excellent curative brown patch control following the initial application. Ratings obtained between 25 Jun and 22 Jul showed that all fungicides and spray interval treatments were providing good (<4% blighting) to excellent (<1% blighting) brown patch control. All fungicides were last applied on either 2 Jul (21-day spray interval) or 9 Jul (14 and 28 day spray intervals). On 29 Jul, most treatments were providing acceptable control except for the following: EXP 10064B (1.5 and 3.0 fl oz); RH-3866; and RH-0611. A few days prior to 5 Aug, brown patch subsided and most plots began to show signs of recovery. On 5 Aug, the following treatments that continued to provide commercially acceptable control were as follows: Chipco 26019 (all rates); Chipco 26019 + EXP 10221 (all rates); and RH-3866. By the final rating date (i.e. 19 Aug), Chipco 26019 + EXP 10221 (1.5 oz + 1.5 fl oz on a 14 day interval and 2.0 oz + 2.0 fl oz on a 28 day interval) continued to provide long residual and excellent brown patch control." |
|---|
| Language: | English |
|---|
| References: | 0 |
|---|
| Note: | Table |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Dernoeden, P. H., and M. A. Fidanza. 1992. Brown patch control with Iprodione and experimental fungicides, 1991. Fungicide Nematicide Tests. 47:p. 313. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=24511 |
| If there are problems with this record, send us feedback about record 24511. |
| 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) |
