Zoysia Grass Pest Control: A Comprehensive Guide

Zoysia grass is a popular choice for lawns due to its drought tolerance, low maintenance requirements, and beautiful appearance. However, like any other type of grass, Zoysia can be vulnerable to pests that can damage or even kill it if not properly controlled. In this article, we will discuss some of the most common Zoysia grass pests and how to effectively control them.

Understanding Zoysia Grass

Before diving into pest control methods, it’s important to understand the characteristics of Zoysia grass. This grass species is known for its dense growth and slow growth rate, which can make it more resilient to pest infestations. Additionally, Zoysia has a deep root system, making it more drought-tolerant than other grasses.

Common Zoysia Grass Pests

  1. Armyworms – These are the most common pests that attack Zoysia grass. They are voracious eaters and can cause significant damage to the grass if not controlled.
  2. Grubs – These are the larvae of beetles that feed on Zoysia grass roots. Grubs can cause brown patches and weaken the grass, making it more vulnerable to other pests and diseases.
  3. Chinch bugs – These tiny insects suck the sap from Zoysia grass, causing yellowing and eventually death of the grass.
  4. Mites – These are microscopic pests that can infest Zoysia grass during periods of drought. They cause leaf discoloration and can weaken the grass over time.

Effective Pest Control Methods

Now that we know the most common Zoysia grass pests, let’s discuss how to control them effectively.

  1. Regular Mowing – Keeping Zoysia grass at the proper height can help prevent pest infestations. Mowing regularly also helps to remove any existing pests.
  2. Proper Watering – Zoysia grass should be watered deeply but infrequently to encourage deep root growth. This can help the grass tolerate drought and resist pests.
  3. Biological Control – Beneficial insects like ladybugs and lacewings can help control Zoysia grass pests naturally. These insects feed on pest larvae and can reduce their population over time.
  4. Chemical Control – In severe cases, chemical pesticides may be necessary to control Zoysia grass pests. However, it’s important to read and follow the label instructions carefully and avoid overuse of chemicals.


Zoysia grass is a beautiful and resilient grass species, but it can still be vulnerable to pest infestations. By understanding the most common Zoysia grass pests and utilizing effective pest control methods, you can keep your lawn healthy and beautiful for years to come.


1. How often should I mow Zoysia grass?

Zoysia grass should be mowed every 7-10 days during the growing season.

2. What is the best time to water Zoysia grass?

Zoysia grass should be watered deeply once a week during the growing season.

3. Can I use organic pest control methods on Zoysia grass?

Yes, biological control methods like beneficial insects can be effective for controlling Zoysia grass pests.

4. How do I know if my Zoysia grass has a pest infestation?

Look for signs of yellowing or brown patches on the grass, as well as any visible pests or damage to the roots.

5. What should I do if chemical pesticides are not effective for controlling Zoysia grass pests?

Consult with a professional lawn care service for additional pest control options.

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