My mealworm farm is getting going well enough that I'll soon be able to start feeding some to my chickens. If my feeding method is just tossing a handful in the run, I'm concerned about introducing a non-native insect species to my local environment if some of the larvae manage get away and develop into beetles. It makes me wonder if I should drop them on a piece of plywood or something so the mealworms don't have a chance to burrow into the substrate.