Frequently Asked Questions


1) What area do we service?

We service the Black Hills area


2) How do I sign up for service?

Signing up is easy – just call to request the services you want. If we haven’t estimated your lawn, we will give you a free estimate for our 5-Step Lawn Care Program.


3) How do you bill me for services?

After each service our invoice will be left attached to your front door, unless other arrangements have been made. You may pay by cash, check, credit card, or money order. We also have a pre-payment discount plan for the 5-Step Lawn Care Program and the Tree and Shrub Care Program as well. Payments are due upon receipt of the invoice unless other arrangements are made in advance.


4) Do I have to sign a new service contract every year?

Like your newspaper delivery service, our 5-Step Lawn Care Program and the Tree and Shrub Care Program automatically continue every spring. In case you forget, we send out a prepay letter with the final application in the fall and then again in late winter before services begin the following year. All other services (weed & feed, pest control, tree spraying, etc) do not continue from year-to-year and must be ordered by the customer for every application. To cancel your services simply call or write Warne Chemical & Equipment Co.


5) What guarantees do you provide?

The treatments that you receive from Warne Chemical do not guarantee perfect results.


Lawn Care - The outcome depends largely on your mowing and watering routine, the amount of shade and trees present, soil and grass varieties, and may other variables.


Tree and Shrub Care - Applications that are made to trees and shrubs are also influenced by the growing conditions. Trees and shrubs that are under environmental stresses such as low moisture and high heat do not respond as favorably as treatments to trees and shrubs that are growing in a more favorable environment.


Pest Control – Results depend greatly on the amount of preparation that is done to the site by the resident or tenant of the dwelling. If out technician is not able to access the necessary areas needed to perform the treatment correctly due to dirty, cluttered conditions, the results will be less than desirable.


However, if you are not satisfied, we will keep working with you until you are.


6) When is my next lawn application?

We schedule 5-Step Lawn Care application in five to six week intervals.


7) If the weather is bad, will my treatment be pushed back to a later date?

Please don’t worry if an application seems to be delayed. Weather plays a big part in when and where we treat. Our materials are blended especially for this climate and your lawn and trees will most definitely be treated within the proper time frame.


8) My lawn treatment was done and shortly afterwards it began to rain. Is it still okay?

If it rains within an hour of one of our treatments, don’t be concerned. All of our treatments do best when watered in. If a heavy down pour of rain immediately follows a treatment, call us without delay and we can decide whether a re-application is necessary.


9) What effect does mowing have on lawn treatments?

If lawns are mowed at the correct height (2-1/2 to 3 inches), mowing does not impact weed control because you will be mowing over the top of the leaf surface of many weeds. As far as fertilization, if the lawn clippings are bagged, the lawn should be watered to wash the fertilizer off the leaf blade, down to the roots. If you do not bag your clippings (which is healthier for your lawn) no watering is necessary.


10) How often should I mow?

Your lawn does best if mowed every fourth or fifth day. It is best not to mow more than 1/3 of the total leaf surface off per mowing. Also, it is best to avoid mowing when the lawn is wet, during the hottest part of the day, or when your lawn is dry or drought stressed.



11) What do I do about crabgrass?

The first thing to do is make sure you actually have crabgrass. Many lawns in the Black Hills have either Brome or Quackgrass, a perennial grass that homeowners often mistake for crabgrass. Roundup is the only way to get rid of a perennial grass. Crabgrass is an annual weedy grass that germinates in the summer and dies with the first frost in the fall. The best prevention is a dense, healthy lawn. For lawns that have an abundance of crabgrass, a preventative application in the early spring will prevent about 85% of the crabgrass from appearing. Those few plants that do make it up can be hand pulled or treated later in the summer before they go to seed.


12) Why do I have mushrooms?

The presence of mushrooms means that there is some decaying organic matter present in the soil. Mushrooms are a result of organic matter (old tree roots, wood, etc) decomposing in the soil. Don’t worry, it won’t hurt your lawn and there is nothing that you can do about it. They also indicate that there is plenty of moisture in the soil. Usually mushrooms appear after rain fall. Once the soil dries out a little, give it about three to five days and the mushrooms will probably go away. The only way to eliminate the mushroom growth is to remove the organic matter and the surrounding soil. This is a very big task. Mushrooms are also a sign of life in the soil . . . and that is a good thing. Bear with them for a short time and they will disappear, simply mow them off. And, there is nothing to do to prevent them.


13) I have brown spots in my lawn. What causes them?

Diagnosing the proverbial “brown spot” in a lawn can drive even a seasoned professional crazy. There are just so many things that can cause the lawn to turn brown and die in a spot. One thing that you never want to do is apply a control material without knowing exactly what the problem is. If you apply the wrong material, you may end up causing more problems than you are trying to solve. So, where do you start? Have you been watering correctly? This is the most common cause. Lack of water and skips in the irrigation system will cause yellowing and spots. Plus, other problems can become worse if the lawn is not watered properly. Over watering can also yellow a lawn and kill trees and shrubs. What about mowing? If the lawn is mowed too short or not often enough, brown spots can often appear. Is it a problem from pets? Both dogs and cats can cause spots . . . even if you don’t own one of your own. If all of that has been taken care of we can start to look at disease and insects. While there are millions of insects in the world, only two or three of them will cause damage to the lawn. So, it is pretty easy to know what to look for. Diseases are a little harder to pick out, but again, there are only a relative few that routinely cause damage, so knowing the symptoms and signs can help to narrow down the cause. The bottom line is – there are too many different things that may cause a brown spot in the lawn. Take the time needed to properly diagnose the problem before jumping in to starting to control something. You’ll be glad you did.


14) Aeration – Who should get it done and how often?

Every lawn can benefit from aeration. It is suggested that a lawn be aerated at least every other year, but preferably every year. Spring and fall are the ideal times to have your lawn aerated because there is typically more moisture in the soil. Fall is often mentioned as a “better” time only because of the high level of activity of the root system.


15) Will aerating my lawn control thatch?

Core aeration brings cores of soil up from below the lawn surface and we recommend that these cores be mowed back into the lawn. By allowing the cores to mix back into the lawn surface the soil adds back microbial agents which are needed to control thatch. This is not an immediate fix for a serious thatch problem, but is the best way to manage a thatch condition.



16) What can I do to help with pet spots in my lawn?

Along with excessively watering areas affected to help flush out the ammonia, sprinkle some garden lime on the area and water it in generously. The garden lime will help fade the pet spots quicker by lowering the acid levels in the soil. This along with regular fertilizing will help the affected areas recover faster.