Waxworms, Common Pests that Eat Plastic

What appears to be a pest may become a solution to a problem. A recent example of that is waxworms, common pests that eat plastic.

Waxworms got their name because they eat the wax in honeycombs. That makes them enemies of bees and a curse for the honey industry and for bee growers that use bees for pollination. Studies of waxworms have shown that microbiota in their gut breaks down the beeswax and provides nutrition for the waxworms.

The Proceedings of the Royal Society B published the report of a study indicating that waxworms can also eat plastic. Specifically, they can eat polyethylene, which is a non-biodegradable plastic. They metabolize polyethylene into glycol, which is biodegradable. Polyethylene makes up a vast percentage of the 300 million tons of plastic waste generated every year.

Scientists are researching ways to harness waxworms, so they eat the waste without also destroying bees. This study shows that there are natural solutions to one of the biggest waste problems in the world today.

God, in His wisdom, gave us a wide variety of plants and animals that feed on a wide range of foods. That fact not only allows the natural world to exist, but it provides enormous benefits to human society. We need to understand more about what God has done, and science is a useful tool to do that. It was science that told us about waxworms, common pests that eat plastic.

— John N. Clayton © 2020