The weather's been warming up, and that means it's chigger season again in Illinois. Chiggers are tiny mites that live in grass and shrubs. They're nearly impossible to see…but their bites leave behind rash-like bumps that can keep some people itching for weeks. University of Arkansas biologist Ashley Dowling says there are a lot of myths about chiggers. He says they DON'T suck blood like mosquitoes…or burrow into skin.