On rec of a greenskeeper, added this to a mix of herbicides while spraying in Bermuda when temperatures are well over 90F. Herbicides like MSMA or 2-4D will burn the grass and occasionally kill normal bermuda in this heat, but when adding this to the mix, grass tends to be much less affected.
Product easily & cleanly applied with hose end sprayer to large lawn. Lawn appears greener after one week. But I had to guess at application rate because I couldn't find specific instructions for amount of product to dial per gallon of water with hose end sprayer. So I give this purchase 4 stars.