02-10-1997 Council Packet - Laserfiche WebLink

Home Browse Search

represent average conditions. The Minikahda Club received the most frequent applicatic'.s of fungicides, and also received the largest amount per unit area. In addition to tha fungicides shown in the tables, Meadowbrook and Woodhill received applications of NfetBlaxyl (SUBDUE®), and Meadowbrook received applications of Propamocarb Hydrochloride (BANOL®). The application frequency In 1994 was reported to be less than normal, because of the relatively cool temperatures. The TCMA reported only four days with temperatures above 90 degrees Fahrenheit, significantly less than the long term average of 14 days. According to golf course managers, turf diseases are more prevalent during hot weather. Data on the exact decrease in fungicide use in 1994 compared to normal years was not available. RAINFALL Rainfall was below the 136 year regional average at the four rain gauge sites in May and June of 1994, but above average at most of the sites during the other months (Rgure 2). Rainfall amounts varied widely at the four sample sites, especially in August, when the Meadowbrook Golf course recorded 6.7 inches of rainfall while the Baker Gatehouse site recorded only 2.9 inches. Total rainfall amounts also varied widely for individual events. Ove-’^!: the Minikahda course received the most rainfall, 27.9 inches and the Baker course rereived the least, 23.9 inches. The total rainfall at all sites was above the 136 year regional average of 21.33 for the study period. A number of trees adjacent to the rainfall gauge location at the Woodhill site caused a significant error in the data, thus it is not reported here. However, this was acceptable since the main function of the gauge was to trigger the automatic sampler, which it did for almost all events. RAINFALL RUNOFF Flowmeters and automatic samplers were installed at Baker National Golf Course on April 8, 1994, at the Meadowbrook Golf Course on April 11, 1994, at the Woodhill Country Club on April 14, 1994, and at the Minikahda Club on May 13, 1994. The amount of runoff measured at the four sites varied from 3.3 acre-feet at the Woodhill Country Club to 16.4 acre-feet at the Meadowbrook Golf Course. The difference was due mainly to the different watershed sizes and rainfall amounts. The percent of rainfall leaving the courses as runoff was similar at all four sites, 5.8, 7.8, 5.0, and 5.2 at Baker, Meadowbrook, Woodhill, and Minikahda respectively (Table 9). These values are much lower than those reported by Smith (1995), who found that 42 percent of rainfall water left simulated golf course fairways as runoff. The runoff rates I I I I I I I I I I I I I I I I I I I