GM Maize Reduces Pest Damage and Boosts Yields in Northeast China

A study in Northeast China found that commercially planted genetically modified (GM) maize significantly reduces pest damage, lowers pesticide use, and improves crop yields. The research evaluated pest control, yield performance, and environmental impacts of insect and herbicide tolerant maize varieties across China's largest maize-growing region.

The researchers reported that GM maize achieved more than 99% control of lepidopteran pests and 97% weed control. GM maize lowered the need for insecticides and herbicides, which contributed to more efficient farm management. The crop also showed higher resistance to contamination from harmful mycotoxins. The study found that farmers benefited economically, with increased net income due to improved productivity and reduced input costs.

The findings show that GM maize increased yields by 4.6% to 10.1% while reducing pesticide use. The researchers concluded that the technology supports food security and, when combined with integrated pest management strategies, could help reduce agriculture's environmental footprint.

For more information, read the abstract from Pest Management Science.