I recall seeing rotary lawn mower blades with spring extensions that were supposed to de-thatch as you mowed. I don't cut grass anymore, so haven't paid attention. With a vacuum mower the clippings go into the bag/basket and don't form thatch. I use those clippings in flower and vegetable gardens for mulch, so no weeding. Over the winter the clippings decompose and add nitrogen to the soil when it gets tuned over in the spring. Don't use grass clippings if there has been any sort of recent anti-weed treatment.
The guys who cut the grass also aerate which I believe helps.
|