Lawn Fungus Treatment Options

Lawn fungus treatment is often required even in the thickest lawn. But identifying brown patches and brown spots in the lawn is not the easiest task. Keep in mind that not all brown spots in the lawn are caused by fungus. Either way, this article will help you with some of the general lawn fungus treatment options and in addition, help you identify the exact lawn disease you amay be dealing with.
Bayer Fungus Control for Lawns – 11.25 lb. #502842A

The most important factor in dealing with lawn fungus is prevention! It is extremely difficult to eradicate a lawn fungus once it has already taken hold and caused damage.
Secondly, there are some fungus problems that are caused by poor soil conditions, while others are caused by weather conditions. Each type needs a different course of action.

Lawn Fungus Treatment for Weather Related Diseases

Some of the more common lawn fungus problems that crop up due to long, cool wet periods are: Leaf Spot, Powdery Mildew, Red Thread Lawn, Rust and SnowMold. These are common lawn fungus and not very serious if you get on top of them. The best way to prevent them is to apply a granular lawn fungicide treatment in later April and again in later May (according to package directions). These simple treatments should thwart the onslaught of the disease.
If you do get to the problem late, you can still treat the problem to prevent it from getting any worse.

Here is a specific article on Red Thread Lawn Fungus. Here is another about Dollar Spot Fungus.

Lawn Fungus Treatment for Soil Related Lawn Diseases

The two lawn diseases that I normally associate with poor soil conditions are pythium blight and fusarium blight. These two problems are often generically referred to as patch diseases.
The quickest way to combat these two problems is to have your lawn aerated in the spring and fall every year, as well as check your pH and see if a lime application is needed. In addition, you do not want to over-fertilize with heavy nitrogen when these lawn fungus are present in your lawn.

There are also some simple, everyday changes you can make to reduce the likelihood of getting a lawn fungus.

Proper watering is important. Water just a couple times per week and water deeply when you do. Always avoid light waterings.

Proper mowing… First off, it is a myth that lawn fungus are spread from lawn to lawn on mower wheels or with hoses and spreaders. Either way, you should always catch your clippings when a disease is present and mow tall.

Another concern with lawn fungus is the thatch layer. This article tells you all about lawn thatch.

Lawn Fungicides

There are two lawn fungicide classifications

CONTACT FUNGICIDES: once applied, remain on the plant’s surface and kill spores that come in contact with it. These treatments lay on top of the leaves and will degrade with sunlight and rain. These most normally come in liquid spray form and are minimally effective.

SYSTEMIC FUNGICIDES: Usually granular, these lawn fungus treatments are dissolved into the soil and taken up into grass plants through their roots. These treatments are longer lasting and work to prevent disease in the lawn.
Bayer Fungus Control for Lawns – 11.25 lb. #502842A

To summarize, the best lawn fungus treatment comes with proper watering and mowing, reduction of thatch thru aeration and keeping the soil loosened with aeration as well. Lawn fungus treatments applied should be systemic preventative. See the box below for some of the best lawn fungicides.

Summer Dollar Spot Fungus in Lawns

I previously wrote about Red Thread disease that occurs in late spring turf when conditions are hot and humid. Following are more lawn tips relating to fungal problems in lawns in the Midwest and how to identify and treat them.

Dollar Spot Lawn Disease

This one is very often confused with Red Thread as the early symptoms are very similar in appearance. The difference is that Dollar Spot lawn disease occurs in summer, around July, and Red Thread shows up in later May and June.
Another difference is that Dollar Spot patches are brownish and not pink like Red Thread. In addition, severe dollar spots will join together, forming large brown areas in the turf.
If you’re adamant about identifying your particular problem as dollar spot, look for hourglass legions on the leaf blades. If they are there, you know it’s Dollar Spot.

severe dollar spot diseaseControlling Dollar Spot in Lawns

Just like Red Thread, this one is normally not a serious concern for long. It appears with 80 degree + temps and humidity, and slows down when the air dries out.
A good dose of nitrogen will help the lawn grow through the condition as well; however, I never recommend quick-release synthetic nitrogen for this. I like Milorganite Organic Lawn fertilizer because it won’t cause the lawn to stress with over-growth.
If you truly are concerned, granular fungicides available will do a fair job in “preventing” dollar spot but they must be applied prior to the problem becoming visible.
As always, you should mow properly and catch your clippings during fungal breakouts and never water at night. Here is an article on how to water your lawn the right way.