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.
1 If you have a larger lawn, you can get a dethatching blade for your lawn mower. 2  Set the height adjustment so that the tines can touch the surface of the soil, but if you set it too low, you will also remove your grass. 3  Dethatch your entire lawn using this method and dispose of the moss you remove.hey cover bare ground and prevent soil erosion. Moss does not kill your grass, but it can creep into your lawn if your grass has already started dying. In order to get rid of it, you will need to use physical and, possibly, chemical methods of removal.