September 23, 2008 at 11:52 pm
#16793
butterflysueMember
No, butterfly eggs are not powdery.
The easiest way would be to know if the plant is a host source for a particular butterfly. For instance, milkweed is for the Monarch butterfly. The eggs are the size of the head of a pin and generally, will be on the bottom side of the leaf, but may be other places.