Weeds
One of Zoysia’s most attractive features is its resiliency to weeds. Unlike other grasses, Zoysia grows out along the ground. It sends out root stalks, or stolons, that create a thick carpet of grass in your yard. This not only makes Zoysia lush and beautiful, but helps it to choke out most weeds.
In the event that a weed does manage to grow, a few sprays from Season Long a combined (pre emergent and herbicide) or a similar water soluble product will make quick work of the pesky plants. Make sure you don’t use Round-up; it’s designed to kill grass! Always read labels carefully before applying any product.
If you start to have issues with crabgrass, your best bet is to use a pre-emergent to kill the crabgrass seed before it has a chance to germinate. . For the best results, pre-emergent products should be used in early spring and again in the fall.
Pests
You guessed it, Zoysia is very resilient to most lawn pests, with only a few exceptions. This lets you avoid the cost, time, and risk of using pesticides. The few pests that can sometimes pester your Zoysia are grubs, mole crickets, cinch bugs and nematodes, especially when the plugs are still new.
If you have a history of dealing with the mentioned pests, it would be a good idea to treat your lawn for them before planting plugs. If you have treated for them after your lawn has been planted, don’t worry; Zoysia isn’t bothered by the chemicals used.