Gypsy Moth Spraying Deadline Gypsy Moth Update 2021 Gypsy moth Pheromone traps Due to the extensive Gypsy moth outbreak we are currently experiencing, the MPOA will not be offering gypsy moth traps for sale this year. Traps probably reduce the number of fertilized females when moth populations are low between major outbreaks, however they offer virtually no benefit currently. it may be satisfying to empty a trap full of dead moths every few days during a major outbreak this does nothing to reduce defoliation. The caterpillars do all the munching, only males can fly and females are generally found on or near