We use small plastic aquariums to grow our caterpillars in but a one-gallon jar is also suitable. The top of your container should be covered by a piece of cheesecloth ( we use kitchen roll which works too) and fastened securely by a rubber band.

You should also provide your caterpillars with some sticks that fit securely into the cage for them to pupate on. Do not use a jar lid with holes punched in it. Not only will this provide inadequate ventilation, but the caterpillars can also be cut open by the sharp edges of the holes.

Keep your container with caterpillars in a light, airy space, but not direct sunlight.

Clean Caterpillars

Caterpillars have one job in life: eating. Because of this, they produce copious amounts of waste (‘pillar-poo), known as frass. This frass must be cleaned out of the cage every day (sometimes multiple times) in order to prevent mold growth and create a healthy environment for your caterpillars.