
Yesterday, I posted about Aphis nerii aphids descending on a Hawaiian Crown Flower (Calotropis gigantea). After they were gone the plant continued to do well for a day or two. Then holes started to appear in the leaves and arcs along the edges.
Closer examination revealed a couple of tiny Monarch Butterfly caterpillars munching their way around the leaves. The Crown Flower is a favorite host for these caterpillars, so this wasn’t a surprise. We were also keen to provide an area for the Monarchs to thrive in. So we let the caterpillars be and monitored the situation.
What happened, not surprisingly, is that the caterpillars grew quickly. As they did so, the leaves of the plant diminished accordingly. I was gone for my weekend, and when I returned, the caterpillars had more than doubled in size. The plant though looked like someone had gone at it with a machete. We wondered if the caterpillars would devour the whole thing before they pupated.



When I returned to work after another weekend, the caterpillars were gone. As the Crown Flower was food for the caterpillars, so it appeared, the caterpillars were food for the numerous birds in the area.
The plant will likely recover from its ravishing and, once it’s bigger, it might be better able to accommodate the attentions of these caterpillars and in turn provide more cover for them from the birds. Or not! I will monitor the situation.
Posted for Becky’s Squares theme of “Walking” (see more responses here).




