Disease Control Services
Eliminate Lawn-Damaging Diseases
with Proven Disease Control Treatments
LawnWorks
Disease Control for Lawns
Say Goodbye to Brown Patch, Dollar Spot, Rust, and Other Lawn Diseases with Help from LawnWorks
Lawn diseases caused by fungal pathogens can quickly impact the health, color, and overall appearance of your turf. When left untreated, these issues can lead to thinning grass, dead patches, and expensive lawn repair.
Because lawn disease often looks similar to drought stress or insect damage, identifying the true cause is not always simple without professional experience.
LawnWorks Lawn Care
Lawn Disease Control Advice
Straight From Our Owner Josh Cull
Lawn disease questions come up in almost every conversation we have with homeowners once the weather turns hot and humid.
So we sat down with LawnWorks Lawn Care owner Josh Cull and asked him directly: What should homeowners be doing about lawn disease, and what does LawnWorks do to help?
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What can homeowners do to prevent lawn disease?
“A lot of it for the homeowners is implementing proper cultural practices. So, proper watering, proper mowing, and thatch management.” -Josh Cull, owner of LawnWorks Lawn Care
Easy adjustments to prevent lawn diseases:
LAWN IRRIGATION
Setting up your irrigation systems to water your grass.
Often, with irrigation systems, the irrigation company comes out to set up the programs, and they “set it and forget it”.
For example, many of them set it to water almost exclusively every other day; some have theirs set to water every day, and many water in the evening.
How should I water my grass?
To properly water your grass, our recommendation is deep, infrequent watering rather than daily watering. Basically, you want to water fewer times, but with greater volumes. Watering in the early mornings, rather than at night, also helps to reduce leaf wetness.
LAWN MOWING
What about mowing height? How short should I mow my grass?
Mowing height and using sharp blades help. If you mow with your old blades and they’re dull, it really tears and creates wounds in the turf plants, which makes them more susceptible to these fungal pathogens. To find proper mowing height this is a great resource: https://extension.illinois.edu/lawns/mowing-your-lawn and try not to cut more than a third off the grass leaf during a single mowing. This will help keep the lawn healthy too.
THATCH MANAGEMENT
I’ve mowed and watered properly; what else can I do for better lawn disease management?
The last thing is thatch management. Thatch kind of acts like a sponge and holds that moisture at the surface. All of these fungal pathogens are going to require a certain amount of moisture for a certain amount of time. So anything you can do to properly manage the level of moisture at the surface really helps to reduce lawn disease pressure.
If you still have lawn disease issues after implementing these best practices, call LawnWorks.
For people who seem to have chronic lawn problems year after year with specific diseases, we start to look at and recommend overseeding with newer varieties of turf that have better resistance to those pathogens.
Lawn Disease Monitoring
What does LawnWorks do to help with lawn disease control?
“One, we serve as a consultative service. The best success is when we have good communication with our customers. I always tell my customers, keep in mind, over the course of their typical lawn care program, we’re going to be on their lawn about once every six weeks, and a lot can happen in those six weeks.” – Josh
We do provide training for our technicians; they’re trained to look for certain diseases, and we talk about that routinely throughout the year.
For example, it just started getting really hot and humid this summer, so we had a meeting. It was like, hey, we’re going to start seeing a lot of dollar spot, we’re going to see brown patch, these are things to be on the lookout for.
It helps when customers communicate with our lawn care company.
If you see something, say something. You don’t have to know what it is, but if something looks “off” in your lawn, let us know immediately. We’ll come out, take a look, and diagnose the lawn issue. It could be a disease, it could be an insect issue, or it could just be drought stress, maybe some summer dormancy. But I encourage good, timely communication.
Visible lawn diagnosis helps us manage your lawn care too.
At this point, what it takes is for one of our managers to actually get out and diagnose the issue in person. We have to evaluate the disease and determine, hey, what is our next course of action? Is a fungicide necessary? A lot of times it is. A lot of times it’s not, too.
We can go back to those cultural practices and talk to people and say, hey, what does your watering program look like? And if they’re watering at the wrong times of day, I say, hey, let’s do this first instead of putting products on.
Let’s see what you can do to reduce the pressure. If it doesn’t subside by then, then we can look at chemical options like a fungicide, and sometimes just fertility is needed.
Certain fungal infections thrive in low-nitrogen conditions. So if it’s been a while since the last fertilizer application, it’s like, hey, you do your part with the proper watering and proper mowing, we’ll get a little nitrogen on this, and sometimes that’ll help it grow out.
“So we use fungicides only if it’s necessary. It sounds odd because I’m in the business of applying chemicals, but I don’t like to apply something if it’s not needed.” ~ Josh Cull, owner
LawnWorks Lawn Care
Lawn Disease Control – At a Glance
The LawnWorks Lawn Disease Approach Simplified
Josh’s advice comes down to a clear lawn disease control philosophy:
1. Cultural practices first. Proper watering, proper mowing with sharp blades, and thatch management reduce disease pressure before any product is applied.
2. Trained eyes on your lawn. LawnWorks technicians are trained to spot diseases like dollar spot and brown patch, and the team meets regularly to stay ahead of seasonal disease conditions. But they are only out every six weeks or so, so timely communication from the customer is key.
3. If you see something, say something. You don’t have to diagnose it. If your lawn looks off, call LawnWorks and a manager will come out and diagnose the lawn issue.
4. Fungicides only when needed. LawnWorks evaluates every lawn disease case and recommends watering corrections, fertility, or fungicide treatment based on what the lawn actually needs.
Seeing brown patches, thinning spots, or anything that looks off in your lawn? Contact LawnWorks Lawn Care for a lawn disease diagnosis.
Get Disease Control Services 815-723-8760
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“This was the first treatment of our lawn. The service provided was great! Daniel took the time to explain what he and his partner did that day and what to expect in the future treatments. I look forward to an excellent experience and future business Lawnworks!” Steve Mueller
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Crest View, Illinois
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Your Questions Answered
Lawn Disease FAQs
How can I prevent lawn disease on my own?
When is the best time to water my lawn?
Does my irrigation system need adjusting?
Why do sharp mower blades matter for disease?
What is thatch and why does it matter?
I have the same lawn disease every year. What can I do?
How often will LawnWorks be on my lawn?
What should I do if I notice something wrong between visits?
Is it definitely a disease if my lawn looks bad?
Will you always apply a fungicide?
Can fertilizer help with lawn disease?
Is fungicide treatment safe for my kids and pets?
Will my lawn recover from disease, or is the damage permanent?
Is lawn disease contagious, and will it spread to the rest of my yard?
Is lawn disease control included in my lawn care program, or is it an extra charge?
What time of year does lawn disease show up in Illinois?
Do you provide lawn disease control in my area?
Are lawn diseases damaging your lawn?
At LawnWorks Lawn Care, we help homeowners in Illinois diagnose and manage lawn disease with the right combination of lawn care expertise, disease treatments, and prevention. Our lawn care team understands how to identify common turf diseases, determine the cause, and recommend the most effective solution for any lawn disease.
Not all lawn diseases develop the same way or affect turf in the same areas. Some target the grass blades, while others attack the roots and surrounding soil. Certain diseases are more likely to appear in specific turf varieties, and weather also plays a major role: some thrive in cool, damp conditions, while others become active during heat and humidity. Accurate identification is the foundation of effective lawn disease control.
For lawn disease to develop, three factors must be present: a disease-causing pathogen, a lawn that is vulnerable to infection, and environmental conditions that allow the disease to spread. This is often called the lawn disease triangle. Understanding these three factors helps guide the best treatment and prevention plan.
Lawn Diseases
Our Proven Approach to Lawn Disease Control

When lawn disease becomes severe or conditions allow it to spread quickly, fungicide treatments may be needed to help prevent significant turf damage. In those situations, LawnWorks Lawn Care can accurately diagnose the issue and apply the right treatment for your lawn.
We also help you reduce the risk of future outbreaks by recommending better lawn care practices and, when needed, suggesting overseeding options that support a healthier, more resilient lawn.
If your lawn is showing signs of disease, LawnWorks Lawn Care is here to help. Our lawn care team provides knowledgeable lawn disease diagnosis and treatment services for Illinois lawns, helping protect your turf and keep it healthy, green, and looking its best.
At LawnWorks Lawn Care, we follow an integrated lawn care approach to battle lawn disease.
We often look to improve lawn conditions and reduce lawn stress to help prevent disease from developing or returning.
Strong lawn care habits are one of the best defenses against disease. Healthy turf is better able to resist infection and recover when problems occur. Important cultural practices include:
Proper Watering:
Many lawn diseases thrive when grass stays wet for too long. Watering early in the morning instead of at night helps grass dry more quickly and reduces the risk of fungal growth. Deep, infrequent watering is generally better than frequent shallow watering that keeps the surface damp.
Good drainage and aeration:
Smart mowing practices:
Balanced lawn nutrition:
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