The answer to 'sod weeds' is that common causes of weeds in new sod include improper sod installation, poor soil preparation, and weed seeds that were already present in the soil. Symptoms include patches of weeds growing alongside the desired grass. To address this, the first step is to identify the specific weeds and then use appropriate weed control methods, such as hand-pulling, applying a selective herbicide, or overseeding with new grass seed.
For minor weed issues, homeowners can often handle the problem themselves. However, for severe or persistent weed infestations, it's best to call in a professional landscaper who can properly diagnose the problem and implement the most effective long-term solution.