I made a hole in the potato large enough for a larva to fit into. The larva readily entered the hole with a little coaxing. I repeated this for each larva that I kept. This is the potato the following day. The openings of the holes were filled with frass. When the potato was consumed or began to decompose I removed the larvae and gave them another potato. The larger larvae required fairly large holes and I used a piece of paper towel to soak up some of the moisture in the hole before inserting the larvae. The potato was placed in a plastic container with a piece of cloth over the opening held in place with a rubber band. This was done to reduce the moisture in the container to keep the potato from rotting and to keep flies such as Phorids from entering the container and laying eggs. The larvae developed much faster than I expected. About 6 weeks after they hatched the mature larvae began spinning silk to prepare for pupation. A total of five potatoes were used to complete larval development.