DRUG DESCRIPTION. PROSCAR (finasteride), a synthetic 4-azasteroid compound, is a specific inhibitor of steroid Type II 5Î±-reductase, an intracellular enzyme that converts the androgen testosterone into 5Î±- dihydrotestosterone (DHT). Finasteride is 4-azaandrost-1-ene-17-carboxamide, N-(1,1-dimethylethyl)-3-oxo-,(5Î±,17Ã)-.
1 The stronger and thicker you can get your lawn, the less chance violets will stand to spread. 2  Seed your lawn. 3  You can either over-seed during a core aeration or slice-seed areas to help them fill-in with new turfgrass.4  Stay on top of things. 5  It may take a couple years to really get a handle on a big crop of violets.ollow these basic principles to win the war on violets: 1  Use the right herbicides. 2  Create an environment that is best for your lawn. 3  Fill in the thin or bare areas. 4  Stay on top of things.
Not to sound too glib, but we had rabbits and voles in our yard when we moved in 2.5 years ago. Then the foxes and owls came, and no more rabbits and voles. Maybe you can figure out some way to make that work for you. To try to get rid of nature, is like living in a bubble. Try to work with it and you'll probably be surprised. Last summer I was fortunate enough to flush out 4 baby rabbits before I ran over them with the lawn mower! I got them one by one and put them over in the woods-phew!