Summer Weed Management
If summer annual weeds have been a problem for you in the past, now is the time to think about applying a pre emergent herbicide to the lawn. You may choose a product with the active ingredient dithiopyr, pendamethalin, or prodiamine. For best results apply a half rate now and the other half in six weeks. Be sure not to over irrigate or you will wash the herbicide past the zone of the germinating weed seeds. You really should not be watering the lawn now anyway. Always read your label for safety precautions.