What is the hardest lawn pest to get rid of?

Some of the toughest lawn pests are those that damage roots underground, like white grubs, because you often do not see them until the lawn thins out or pulls up like loose carpet. Certain surface feeders, such as armyworms and chinch bugs, can also be challenging because they move quickly across a yard and cause large brown areas in a short time. These pests often require precise timing and the right product choice for effective control. Missing that treatment window can mean another full season of damage. In Oklahoma, a professional lawn pest program that includes monitoring and preventive applications usually works better than spot treating after major injury appears.