We usually don’t think about those yellow blooms until they erupt across the landscape in the spring. But thinking ahead will help control dandelions and other broadleaf weeds before they get a chance to grow next season. Treating your lawn with a broadleaf herbicide in September and October works for a couple of reasons.
- It will kill established weeds as well as any seedlings that have come up over the summer.
- As the dandelions prepare for winter, they start to store nutrients in the roots as a reserve. So by applying herbicide now, the dandelion will be pulling it deep into the root system.