|How can I identify the types of weeds in my lawn?? Also, can I overseed without heavy surface preparation?|
|You can compare your weeds to the photos in the following website hosted by the University of Maryland: http://plantdiagnostics.umd.ed...
When overseeding, it's important that the seeds make good contact with the soil so they can root properly. Generally all you need to do is to rake the lawn to make shallow grooves in the soil where the seeds can rest.
Best wishes with your lawn.