We do not breed dubia but we have never had one escape. The person we buy them from has also never had one escape. They are very easy to handle and can be slowed down by lowering their temperature. I think Missouri winters would be too cold for any that might escape to survive. Mealworm breed very easily. Wax worm are also easy to breed. We have the first laying of eggs turning to moths now and laying the second generation. Wax worm are best as occasional treat but all reptiles we have also love wax moths.