Comment from CHENG, DAVIS
DAVIS CHENGSupportIndividual
Summary: Davis W. Cheng, a former government biologist and scientist, argues that the current "plant pest risk" regulatory framework is too narrow to capture the systemic ecological risks of commercial GE crops, such as superweed proliferation and Bt resistance. He recommends broadening the risk assessment paradigm to include population-level effects and instituting mandatory post-market monitoring.
This comment was done through paper reviews of representative documented evidence worldwide on whether genetically engineered (GE) plants pose materially different plant pest risks compared to their conventional counterparts. Drawing on U.S. regulatory records (USDA APHIS, EPA, FDA), peer-reviewed literature, and international agency findings (EFSA, ISAAA), this review finds no approved GE plant has been scientifically confirmed to pose a greater plant pest risk than its conventional equivalent. However, documented contamination incidents, herbicide-resistant weed proliferation, Bt insect resistance erosion, and regulatory gaps reveal real-world risks not fully captured by current plant pest frameworks. In brief, my comment argues that the existing regulatory concept of “plant pest risk” may be too narrow to address the full ecological footprint of commercial GE crops, and recommends a broadened risk assessment paradigm.