Since harvest mites love damp shady areas, removing these kind of habitats from your yard or property will keep chigger populations down. Mowing regularly, removing thick vegetation, thick briars, and eliminating shady areas can help. Chiggers like to congregate in large groups together, so there will be "hot spots" of chiggers. Spot-treating these known hot spots is the most efficient way to control chiggers. Spray an insecticide on border fences between wooded areas, long grass, on low bushes and plants, lawns, ornamental plantings, near the doghouse, and hot spots.
The best defense against chiggers is to avoid or repel them. Before going into an area where chiggers may be present, protect yourself by using a repellent containing DEET or permethrin. Wear loose fitting clothing that is made of tightly woven material. Since harvest mite larvae are only active during the day. If you can exercise your pet early in the morning before the chiggers become too active, this can help reduce the risk of infestation. If possible, avoiding long grasses and vegetation can also help, and keep moving – the worst infestations will occur when sitting down or laying down in a sunny spot in the middle of the day.
Remove and launder clothing as soon as possible after exposure to the chiggers. A warm shower taken within an hour or two after exposure greatly reduces the number of irritating bites. If the itching has started, though, it is too late for bathing to do much good.