The larvae form brown, papery pupal cases suspended from trees and other objects. The pupating larvae metamorphosize into adult moths that emerge in about two weeks. It s always a little surprising how much pupae wiggle. Finding and drowning pupae is another technique to reduce gypsy moth populations. Female moths are white with brown markings and don t fly.
Male moths are smaller, brown, and fly in a characteristic zigzag pattern.
The adults do not feed and only live a short time. Back to top August to January In August 1999, notification letters will be sent to residents in spring 2000 potential spray blocks. If you are included in the spring 2000 gypsy moth aerial suppression spray program, do not remove egg masses until after January 2000. The Ohio Department of Agriculture will survey for egg masses in December 1999 to determine if areas have the required minimum of 250 egg masses per acre. The egg masses must remain in place in potential spray blocks until the survey is completed.