What is the blue color I see on neighbors lawns at this time of year? It’s not exactly needed for your lawn, but think of it as an extra precaution, here’s why. The blue dye is added to the herbicide solution as a spray indicator which gives you the benefit of the doubt that your technician did treat your entire lawn. This is that precaution knowing your weeds are being prevented which guarantees no more weeds. Now we continue to question how does it affect my lawn? Although there is no benefit for the lawn, it is more of a benefit for you. Crazy but the color is only color which is CRUCIALLY important to mix with your pre-emergent herbicide to make sure your technician was thorough and no area was missed.

Regardless of the shade of blue you see doesn’t necessarily reflect the effectiveness of your lawn application. A lawn might look perfectly blue, but that doesn’t mean it’s been treated with the right herbicides. The blue simply signals that the lawn has been attended to. The honest company is the one that guarantees for not just signals but for a thoroughly thought out plan to prevent your lawn from any weeds.