Bests & Worsts Reviews from Amazon

I will share my experience with this product since there is not alot of scattered information regarding it, and I had to piece together information before using it. I have your typical Bluegrass, Fescue, Ryegrass lawn that is common here in the midwest. I noticed that my weed population (creeping charly, clover, knotweed, splurge) kept increasing despite my endless efforts to irradicate them. It wasn't until I started to rake the lawn that I realized I have an intruder that was creeping OVER the top of my existing lawn, and in a lot of cases it was intangled thru the existing grass. Raking had exposed the extreme difference in growth pattern, and there was an obvious difference in the length since it was growing from the center out. Once raked, it was like wiry arms waving hello above the regular grass! It was killing my good grass, making it sparse, and allowing these other weeds to invade. It forms a mat, so it was also trapping moisture underneath- creating lawn fungus for the good grass! I researched extensively, and found that I had nimbleweed and bentgrass. Ugh! Despite the price, I chose to use Tenacity and save the good grass. You have to be patient with this product, it does work, and despite it working slow, it is powerful stuff, so follow the directions since they are specific to the weed you are applying them too. For Bentgrass and Nimbleweed you want to apply 3 weaker applications instead of 2 stronger ones due to the aggressive stolons that bentgrass produces. After about 10 days you will start to see the nimbleweed and bentgrass dying back. It becomes more apparent after the 2nd application. It did cause whitening on my fescue, which does recover, and it did a little damage to my rye. I lived in fear for weeks worried that this stuff was gonna kill my whole lawn, but it didnt. It did reveal to me that I had much more Bentgrass than I had originally suspected (apprx 70% of my lawn). Once all the intruders were dead, I bought a good dethatching rake, and highly recommend one if you have areas that are thick with dead bentgrass. In the areas where the amount of dead bentgrass is thinner, you can just leave it and the regular grass should grow back thru. A bonus to this product, is you can overseed right after your very last application, and your new seedlings will not have to compete with weed seeds when trying to establish. Since this product kills alot of other weeds in the process, I have less weeds in my yard than I have ever had. My pre-existing lawn also seems healthier now, since it is not competing with the bentgrass and nimbleweed for sunlight, water, and nutrients. I did overseed the bare areas and have a new thick beautiful lawn coming in. I have no regrets using Tenacity, and will do a follow up application in the spring to hit any missed stolens that might still exist. Some recommendations- The product comes with a syringe so you can extract the chemical directly out of the bottle. Though I appreciated it being included, I found it difficult to use being the bottle is small, and I almost spilled it a couple of times due to the mechanics. Maybe try a measuring spoon instead. In order for this product to work, you MUST apply it with surfactant. I used Bonide Turbo Spreader Sticker (bought from Amazon also) and was pleased with the results. You can also mix Tenacity with a other chemicals listed in the instructions, so I mixed Triclopyr in the 1st application to help irradicate the creeping charlie. I would be hesitant to use this product in mid-summer when it is extremely hot, only because our cool season grass in the midwest is already struggling during that time. I waited til mid/late August when the temps would start to drop. Do not spray this on any other plants or trees, it will hurt them, and possible kill them. My only regret is that I wish I would have found this stuff sooner! I hope this post helps anyone trying to battle nimbleweed or bentgrass.