Triad T Select™ is a selective post-emergent broadleaf herbicide. It contains four active ingredients to control listed annual and perennial broadleaf weeds in Kentucky bluegrass, perennial ryegrass, and tall and fine fescues. Weed control symptoms may be seen within a few days after application. The most noticeable symptom is bending and twisting of stems and leaves. Weed death often occurs in 1-4 weeks post application, depending on the application rate, sensitivity of the target weed, and environmental conditions.