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Uploaded on Jun 23, 2010
This video demonstrates how you can tell when a swallowtail caterpillar is set to molt and why this is important. Caterpillars that are set to molt fasten themselves with silk (this is critical) to the sprig or surface they are on.
They need this secure surface to successfully push away from their cast skin when they molt. When changing caterpillars that are NOT fifth instar, it is important to learn this difference and only move caterpillars that are not set to molt. If there ever is any question, simply cut the sprig the larva is on and place adjacent to fresh host.