Trench foot
The mainstay of treatment, like the treatment of gangrene, is surgical debridement, and often includes amputation. Self-treatment consists of changing socks two or three times a day and usage of plenty of talcum powder. Wherever possible, shoes and socks should be taken off, feet bathed for five minutes, patted dry, talcum powder applied and feet elevated to let air get to them.
Brown patch
Similar to most turfgrass diseases one of the best cultural practice to prevent Brown patch is by incorporating new disease resistant turfgrass varieties. To find these new cultivars you can visit turfgrass seed distributors, extension specialists, or visit the National Turfgrass Evaluation Program website at: [www.ntep.org]. If incorporating disease resistant varieties of turfgrass is not an option then focus on better management practices. Some of the management practice include reducing thatch, having adequate drainage, and removing dew during hot and humid weather. Dew can be removed from the grass from mowing, using a backpack blower, or dragging a hose across the grass. Install an internal drainage system if you have severe drainage problems. Improve air circulation and avoid irrigation practices that will leave moisture on the grass blades for extended periods of time. An adequate aeration program will relieve compaction and improve drainage. Aeration should annually disrupt between 15-20% of the total surface area. Be sure that you are not applying excess nitrogen to your soil. Most balanced fertility programs for Kentucky Bluegrass lawns will consist of applying two to five lbs of nitrogen/1000 sq.ft. a year.