- They are made of a mesh that lets in light, air, and water.
- They have a milkweed plants inside them.
- They can be moved from one place to another, but are also easily staked down.
What we hope is that the caterpillars will be able to develop safely in these protective environments. They can probably pupate right inside of the contained areas -- we will just have to keep a close watch so that we can let the butterflies go free when they emerge.
The mesh on these is not particularly fine. Wasps, ladybugs, and other predators could probably squeeze in through the openings in the mesh, but it seems that they don't recognize that there is anything inside that would interest them.
We will continue to experiment with SWAPDECs and other ways of protecting the caterpillars. We'll report our results here, so stay tuned!