USDA Invests $21 Million in Mexico to Eradicate Gypsy Moth Threat

Web Editor

May 27, 2025

a man is feeding cows in a pen with hay on the ground and straw on the ground around them, Bouchta E

Background on the Gypsy Moth and its Impact

The Gypsy Moth (Lymantria dispar) is a destructive pest native to Europe that has caused significant damage to forests and trees in North America since its introduction. The moth’s caterpillars feed on the leaves of over 50 species of trees, leading to defoliation and eventual tree death. This not only affects the environment but also poses a threat to public health, as the moths can cause skin irritation and respiratory issues.

Collaborative Efforts Between the US and Mexico

To combat the ongoing threat of the Gypsy Moth, the United States Department of Agriculture (USDA) and its Mexican counterpart have joined forces. The USDA Secretary, Brooke L. Rollins, recently announced a $21 million investment in Mexico to strengthen their efforts against the pest.

The Investment Details

This investment will support the renewal of a production facility in Mexico for rearing sterile moths. The goal is to produce between 60 and 100 million sterile moths weekly, pushing the pest population further south in Mexico. This strategy, known as Sterile Insect Technique (SIT), has been employed for decades alongside other methods like surveillance and import controls.

Current Situation and USDA’s Role

Currently, the USDA and Mexico are collaborating intensively to eradicate the Gypsy Moth. The USDA supports breeding and distribution operations in Mexico and Central America, with up to 44 flights per week releasing 100 million sterile moths. All moths used today are bred at the COPEG facility in Panamá.

Mexico’s Perspective

The Mexican government expressed confidence that, given the on-the-ground results and technical agreements reached, exports of livestock could resume shortly.

Key Questions and Answers

  • What is the Gypsy Moth threat? The Gypsy Moth is a destructive pest that feeds on the leaves of various tree species, causing defoliation and eventual tree death. It also poses public health risks.
  • Why is the USDA investing in Mexico? The USDA is investing $21 million to support the renewal of a production facility in Mexico for rearing sterile moths, aiming to eradicate the Gypsy Moth further south in Mexico.
  • What is the Sterile Insect Technique (SIT)? SIT is a method of pest control that involves releasing large numbers of sterile, caged insects into the environment to mate with wild insects, reducing the population over time.
  • How will this investment impact the situation? This investment will enable the USDA to double its use of SIT, potentially accelerating the eradication of the Gypsy Moth and resuming livestock exports from Mexico.