9 Steps to Rid Your Lawn of Fleas & Ticks Blood-sucking fleas and ticks pose potential harm to your family and pets. They hide in your lawn and can cause problems from simple skin irritation to spreading disease. Control fleas and ticks in your lawn with these simple tips. Mow it right. Mowing your lawn to the proper height reduces flea and tick hang-outs. Both of these insects hide in longer grass. Avoid overwatering . Fleas and ticks prefer moist environs. An overwatered o