Controlling broadleaf weeds such as ground ivy, dandelion and white clover weeds in the lawn is best done in October.
Why is it important to mow at high settings?
Mow at the highest setting for strong roots, grub control and less weeds.
Homeowners have a bad habit of mowing lawns short. Many dream of their lawn looking like a golf course.
Fun fact: Golf course fairways are mowed three times per week with a frequently-sharpened reel mower, and irrigated daily during the summer. Sounds quite ambitious for the average person.
Mowing your grass at a height less than 3 inches is actually stressful to your lawn and may end up requiring dealing with unwanted side effects, like weeds and insects.
Michigan State University Extension