Things You'll Need
- Three, 2-by-3 foot clear plastic containers with tops
- Baby carrots
- Feed oats or bran
- Apple
- Small screen strainer
Instructions
Buy a batch of 1,000 mealworm larva. Fill the bottom 3 inches of one container with the oats. Drop 1/4 of an apple on top of the oats. Put your mealworms in the container. The larva can live on top of one another, stacked 1 to 2 inches deep, so do not be concerned if it seems like you have too many. Depending on the age of the larva -- they have a 10-week maturation period -- you should have pupa in a month or two.
Separate the pupa from the larva and put them in the second container, also filled with oats. The pupa look different from the larva because they are flat and have legs. In addition, when larva molt to become pupa, at the early stage the pupa are white. Later they turn dark brown while the larva are a coffee-cream brown and have no legs. Feed the pupa chunks of baby carrot. Allow them to eat as much as they like. Make sure there is a constant supply of carrots for them.
Once the pupa molt into beetles, separate them out of the pupa container and put them in your third container that contains 3 inches of bran. Within two weeks, the beetles will begin laying eggs. Separate the eggs out with the small screen strainer and put them in your original container with oats. In a week or two, the eggs should hatch into larva and you will have completed your first cycle.