Asian Gypsy Moth is an injurious invasive species with great potential to create damage in forests around the world. The larvae are known to cause heavy defoliation among trees and other vegetation, thus disturbing the local biodiversity as well as agriculture. AGM is a concern for vessels because the moth is transported relatively easily between regions through contaminated cargo or ship hulls.

Vessels are required to undergo Asian Gypsy Moth inspections prior to departure from those ports in countries where AGM populations have been identified. These inspection measures are checks in the ship’s hull, cargo holds, and other likely areas where AGM eggs and larvae might be concealed. If signs of infestation are found, the vessel can be prevented from leaving port until the growth of these insects is eliminated from the ship altogether. This inspection is one important part of preventing the spread of AGM and maintaining the ecological integrity of new regions.