PESTS Bugs For Bugs produces natural enemies for 3 types of pests. Please click the pest below for more information. Flies Lawn Grubs Lepidoptera Flies begin as a nuisance and soon populations increase to the point where it becomes difficult to work around the animals. The flies also harass the animals to the point where they significantly take away from their contentment at being there, and also reduce production from the stress caused. Lawn grubs eat at the tender roots of your lawn, slowly killing the grass above. Soon large patches turn brown and die. This also encourages rodents to actively search for the grubs by tearing up your lawn in their search for the grubs. Often the rodents cause as much or more damage to your lawn by their digging. Several species of lepidoptera are attracted to and feed upon many field crops. They can quickly cause significant damage and loss of production.