man on lawn with lawn mover

Fight Weeds, Diseases and Insects with Healthy Grass

Weeds, blights and pests can wreak havoc on our grass, no doubt. But would you be surprised to find out that these threats typically cause less than one-third of lawn problems? In fact, they are much more often symptoms rather than the underlying issue. The number one threat to your lawn is actually human error. Whether you or a service provider maintains your lawn, innocent mistakes in lawncare can lead to unwanted weeds, diseases and insects.

Don’t despair. The good news is that with simple fixes, you can prevent up to 70 percent of common lawn threats. Healthy grass, maintained properly, does a better job of crowding out weeds, resisting diseases and discouraging insects.

Mistake: Soil Neglect

Balanced soil with the proper pH and nutrient levels is necessary to support healthy grass growth. Many homeowners, and even some professionals, neglect to periodically test and amend the soil.

The Fix:

Experts recommend soil testing every two years to ensure your grass gets what it needs. Your local extension service office offers tests for a nominal fee and responds with recommendations for amendments to bring your soil into balance for healthier, hardier grass.

Simple soil type test
man pushing gas power lawn mower

Mistake: Improper Mowing

Mowing too low stresses grass and opens up opportunities for weeds to invade. Mowing with a dull blade rips at grass blades, making them more susceptible to disease. Letting grass get too high creates an environment that invites disease and insects.

The Fix:

Mow to the proper height for your grass variety and never scalp your yard. Regular mowing with a sharp blade at the right height encourages dense growth for a more durable and threat resistant lawn.

Mistake: Overwatering

It’s easy to overwater a lawn, which creates environments perfect for fungi and other blights. Watering less but too often is also an issue, causing shorter roots that make grass more susceptible to heat and drought while benefitting weeds.

water sprinklers watering lawn in early morning

The Fix:

Adopt proper watering practices, watering longer but less often. Generally grass needs half an inch of water from rain or irrigation every three days. Install a moisture detector on your sprinkler system to avoid overwatering, and periodically measure the output from each sprinkler head to ensure the whole yard gets evenly watered.

Deeply watered grass roots grow longer and support stronger and denser grass, crowding out weeds and insects. Watering in the morning before the dew dries also helps discourage fungi and other diseases.

The Mistake: Improper Fertilization

Fertilizing too much or at the wrong time can set your grass up to fail. Over fertilizing may burn grass and potentially discourage growth. Fertilizing too early in the season prompts growth that could be damaged by late frost, and fertilizing too late in the season can interfere with the transition to dormancy. 

man placing fertilizer on his lawn

The Fix:

Some grasses require regular fertilizing throughout the growing season. Some need only a spring and fall application. Feed your grass based on the variety, following recommendations for proper fertilizing to grow a healthy lawn that is better able to resist weeds, disease and pests.



If you have questions about keeping your lawn healthy, our Certified Turfgrass Professionals are happy to help. Contact them at 770.832.8608 or


related posts

NG Turf Logo

An industry leader throughout the Southeast, providing premium grass varieties backed by superior service and
a one-year warranty
*Terms apply.

Recent Posts


Sod Calculator

How much sod do I need?  Use our custom sod calculator to find out.

One Year Warranty

Enjoy the peace of protection with the NG Turf One Year Warranty.
*Terms apply.

Follow us on Social