Avoid scalping grass, which is cutting it too short.
A scalped lawn is vulnerable to diseases and weed infestation. Scalped turf tends to be weak and sparse, which exposes soil. One of the No. 1 contributors to weed success is exposed soil that allows weed seed to take root. A sparse lawn also lets sunlight reach weed seedlings and give them a boost. Grass that’s consistently cut too short has a poorly developed root system, which makes the lawn more susceptible to serious damage from drought or high temperatures.