In a 149-page environmental assessment, the Agriculture Department says untoward impacts “are unlikely” from a field test of genetically engineered diamondback moths. Cornell University proposes a trial at its research farm to see if the GE moths, which are biologically altered so that female offspring die before reproducing, are effective in controlling the diamondback moth in the wild. The moth is a damaging pest of cabbage, cauliflower and other crucifer vegetables. USDA says its assessment finds no likely impact on soil, water or air quality, farmworker health, or any endangered species. The assessment is available here.