Regular mowing not only aids in keeping our lawns and gardens tidy, it has other benefits as well. Such as promoting the tillering effect, when a lawn will thicken up its green leaf, while slowing down the growth of it's runners. Another great benefit is it's assistance in the reduction of weeds.
By mowing regularly, we can remove the flowering stalks and seed heads that would have propagated the next generation of weeds in our lawns, often removing the flower before seeds even form. It's that simple.
While it's a great trick, keeping our lawns beautiful into the next season, and reducing our dependance on herbicides, it won't work for all weeds. Unfortunately some weeds form their seeds below mowing height, others seeds are very small and profuse, and won't be caught or removed by mowers. As for them, we just need to revert to our standard practices of weed control.
Pull first, and spray last.