There’s been an exciting new discovery in the fight against plastic pollution: mealworm larvae that are capable of consuming polystyrene. They join the ranks of a small group of insects that have been found to be capable of breaking the polluting plastic down, though this is the first time that an insect species native to Africa has been found to do this.
Polystyrene, commonly known as styrofoam, is a plastic material that’s widely used in food, electronic and industrial packaging. It’s difficult to break down and therefore durable. Traditional recycling methods – like chemical and thermal processing – are expensive and can create pollutants. This was one of the reasons we wanted to explore biological methods of managing this persistent waste.
I am part of a team of scientists from the International Centre of Insect Physiology and Ecology who have found that the larvae of the Kenyan lesser mealworm can chew through polystyrene and host bacteria in their guts that help break down the material.
