When you find woolly bear caterpillar friends on your path, the best move is to leave them alone. These fuzzy crawlers know where they're going. They won't hurt your garden, your pets, or your plants in any way. If you see one sitting safe on grass or a trail, just enjoy watching it for a moment and let it carry on with its business.
The one time you should help woolly bear caterpillar travelers is when they're on a busy road. I spot them on pavement every fall, sometimes three or four on a single walk through my town. They move so slow that cars will crush them before they get across. I've made it a habit to pick them up and set them on the grassy side they were heading toward. That small act takes you five seconds and saves a life every time you do it.
You might wonder why so many woolly bears end up on your roads in autumn. They leave their feeding spots and search for warm places to spend the winter months. They crawl toward leaf litter, fallen logs, and rock crevices where they can freeze and thaw safely. Roads just sit between where they eat and where they need to go. Your local roads become their highways every single October and you can help them survive the trip.
This woolly bear crossing road pattern happens every year like clockwork. Purdue Extension's John Obermeyer has tracked these mass crossings across the Midwest for you to read about. You'll see dozens of them on a warm October afternoon during peak season. They aren't lost or confused at all. They follow the same ancient instinct that has kept their species going for thousands of years across your region.
If you find one in your garden, resist your urge to move it somewhere else. NC State Extension confirms that woolly bears are harmless to your plants and cause no real damage at all. They munch on common weeds like dandelion, plantain, and clover growing in your yard. Your tomatoes and your flowers are totally safe from these guys. The caterpillar will move on by itself once it finishes feeding on your weeds.
I'll never forget my first fall in the country when I found six woolly bears on my driveway in one morning. I panicked and called my neighbor thinking something was wrong with my yard. She laughed and told me they do this every single year around the same time. Now I look forward to seeing them each October and counting how many show up. It's become one of my favorite signs of the season and you'll grow to love it too once you know what you're seeing outside your door.
When you do need to move one off your road, here is how you do it right. Slide your fingers or a leaf under the caterpillar and lift it up for yourself to see. It will curl into a ball, which is totally normal for them. Always move it in the direction it was heading since turning it around sends it back into danger. Set it down on your nearest patch of soil or grass and it will uncurl within a minute.
One last tip for you to keep in mind. Avoid touching woolly bears with your wet or sweaty hands since moisture can clog their breathing pores. Use your dry hands or a dry leaf for the best results. You don't need gloves at all. These caterpillars carry no venom and their bristles cause only mild tickling for most people you know. A quick hand wash afterward is all the cleanup you need.
Read the full article: Woolly Bear Caterpillar Facts and Guide