What is in this article?:
- US and Europe approach biotech crop crossroads
- 17 years of biotech cultivation
- A US-EU trade agreement will require serious negotiation of biotech crop issues.
- Biotech crops are now in their 17th year of commercial cultivation and use with over 3 billion acres planted globally
17 years of biotech cultivation
The environmental benefits are clearly seen for insect resistant biotech cotton and corn. For the U.S. in 2010, biotech insect resistant cotton compared to conventional cotton reduced the insecticide active ingredients applied by 23.2 percent and the annual field EIQ by 25.7 percent. China, the largest producer of cotton, had similar results with insecticide active ingredients down by 22.5 percent and the field EIQ down by 21.7 percent. India, with the largest acreage planted to cotton, had a 36.7 percent decline in active ingredients in insecticides in 2010 compared to the entire crop as conventional cotton and a 43.5 percent decline in field EIQ. Australia had the largest declines for the countries analyzed with 73.0 percent decline in active ingredients and a 75.0 percent decline in field EIQ.
The percentage of acres using insect resistant corn is not as large as cotton because not all farms have insects that can be controlled by insect resistant corn. In the U.S. in a typical year about 10 percent of the corn crop is treated with insecticides for corn boring insects and 30 percent is treated for corn rootworms. The widespread use of insect resistant corn has resulted in ‘area wide’ suppression of pests like the European corn borer resulting in conventional crops benefiting from less insect pressures. In 2010 the use of insect resistant corn in the U.S. resulted in active ingredients of insecticides declining by 83.8 percent compared to all conventional insecticide use and a decline of 82.3 percent in annual field EIQ load. In Brazil about 50 percent of the corn acreage is treated with insecticides and the number of sprays per field is reduced from five to two.
(For more, see: Dear Oprah: Biotech crops make sense)
The availability of herbicide tolerant crops has also facilitated the shift in North and South American to no-till and minimum-tillage cropping systems which require less tractor use and increase sequestration of soil carbon. Brookes and Barfoot estimate that lower fuel use for biotech crops in 2010 reduced GHGs by 1.72 billion kilograms (kg) of carbon dioxide, the equivalent of removing 760,000 cars for a year. Increased carbon sequestration from no-till and minimum-till has been 17.4 billion kg of carbon dioxide, the equivalent of removing 7.8 million cars. Reduced soil erosion is another benefit of these tillage systems, but it was not measured.
According to Brookes and Barfoot, about 55 percent of the environmental benefits of use of biotech crops since 1996 have been in developed countries and 45 percent developing countries. About 75 percent of the benefit in developing countries has been from insect resistant cotton because the world’s two largest cotton producers are China and India.
The European Food Safety Authority (EFSA) continues to affirm that biotech crops are safe for humans, animals and the environment. The EFSA’s Panel on Genetically Modified Organisms recently ruled on an emergency petition by France on the safety of Mon 810, a variety of biotech corn, authorized for cultivation in the EU since 1998. They found that France had not submitted any specific scientific evidence for human and animal health or the environment that would invalidate EFSA’s previous risk assessment of Mon 810 corn as safe.
Biotech crops are now in their 17th year of commercial cultivation and use with over 3 billion acres planted globally, with crops used in almost every country around the globe. They have been studied repeatedly by regulatory agencies and found to be safe when managed under various regulatory programs. The benefits clearly out weight any risks that have been studied. It is up to the EU negotiators to decide how to engage the U.S. in the interest of their own citizens.