How to treat brown patches on lawn?

Question

I have brown patches on my lawn. I've been treating it with Immunox but it's not working. Do I need to pull up the dead grass before applying the Immunox? When can I start growing new grass without worrying about it having brown patches again? Thanks!

Answer 1

water duh

Answer 2

If you have active Brown Patch in your yard, you need to treat it. Even if the symptons disappear at the end of the growing season, the fungal spores will still be there waiting to show up the following year. Left untreated, severe cases of Brown Patch can kill sections of your lawn.

Liquid treatments work the best and fastest when you have active Brown Patch. You should look for a treatment that has Chlorothanil as the active ingredient. Chlorothanil will kill the fungus on contact. Treat the affected areas of your yard as well as the adjacent 5 or 6 feet surrounding the areas with Brown Patch damage. It is important that you repeat the treatment 7 days later to kill the 'next generation' of the fungus. The combination of the two treatments will usually be sufficient to eradicate the Brown patch from your turf. If you have had a very bad infestation, be safe and apply a third time one week later. You should NOT fertilize your yard from the time that you first notice the Brown Patch until you have finished the final treatment to eradicate the fungus.

Even after you kill the fungus that caused the Brown Patch, it will still take some time for your grass to recover and grow back in. A very light application of fertilizer may be helpful in turf recovery but do not over-fertilize or you will be recreating the conditions that started the problem.

If you use a mulching mower on your yard (as we normally strongly recommend), you should avoid this practice when you are fighting an outbreak of Brown Patch. By returning the mulched clippings to your yard, you are spreading the fungal spores to a wider area of your lawn. Bag the clippings for the affected area of your yard until the Brown Patch outbreak is solved.

Answer 3

You could have a grub worm problem. You can get grub worm killer at any garden shop.

Answer 4

If the areas were killed by fungus, then its unlikely that area will come back. The treatment you use may control it and keep it from spreading, but the damaged areas are likely dead.Now if you lawn is  creeper it will eventually fill in, if not you may need to resod these areas or reseed.If it is truly "brown patch" the immunox should control it.Bag or rake your grass clippings for a while, till you get the problem under control.