I did a small weed spray experiment (preliminary) on newly seeded grass. I planted the grass in containers on July 16 2011. It sprouted 4 days later. I sprayed it with herbicides 7 days later on July 23. It was about 1.5 inches tall. Temperatures were in high eighties in daytime and 70's at night. The treatments were: T-Zone double sprayed, T-Zone 4 times sprayed, Lesco Eliminate double sprayed, and Lesco Eliminate 4 times sprayed. Results: The sprouts sprayed with T-Zone were injured, especially at the 4 times rate, as they collapsed. The area from about 1/4 inch above the soil to one-inch was brown, necrotic and collapsed. Most of the sprouts bent over at this point. There was no visible injury to the seedling sprayed with Lesco Eliminate--either at the 2 times or 4 times sprayed test. The product worked well on other nearby weeds which were sprayed. I suspect the difference may be due to the sulfentrazone in the T-Zone formula. Seed sown was Scotts "High Traffic" which is high in Silverdollar perennial ryegrass. It appears from this test that Lesco Eliminate is relatively safe for new grass.