Lymantria dispar, also known as the spongy moth, is an invasive species in Missouri and the northeastern United States that harms forests by defoliating trees. Current treatments include putting nets over affected trees and manually removing the spongy moth eggs. These processes of removal can be time consuming and tedious. Chemical control is another form of treatment that can also be devastating to the environment, since the pesticides used can be dangerous to other plants, protected or endangered organisms, and humans. Our project, Moth Outsmarting Through Helpful Yeast (M.O.T.H.Y.), seeks to use synthetic biology to attract and capture these pests to prevent them from causing further harm. Using Saccharomyces Cerevisiae to produce Disparlure, a pheromone that attracts male spongy moths, our team hopes to capture these invasive moths and relocate them. Our team was inspired to take on this project because several of us have experienced the devastation of losing trees to Lymantria dispar and saw synthetic biology as a potential solution. M.O.T.H.Y is similar to a project other teams have done in the past, so we knew it would be possible, especially with our improvements on parts. The implementation of the pheromone through yeast cells would allow us to house them in sugar traps as a form of population control.