Butterfly populations are a very good indicator of the health of an area's ecosystem !!
The Cabbage White was introduced to North America in the 1860's and has since spread throughout the continent. The cabbage white butterfly is known to pollinate several species in the U. S.
The white is typically a double-brooded species, with two generations each year. The eggs, which hatch after around one week, are laid in April and then again in June. The female deposits them singly on the underside of leaves of their food plants
They are typically found in distributed open areas but are also invading natural situations In wooded areas mostly in spring before the canopy closes but they seem to be becoming more forest adapted as garlic mustard increases explosiovely in the East.