The Bill & Melinda Gates Foundation is funding research to genetically engineer tomatoes to be able to disrupt the reproductive cycle of the whitefly, a common insect that damages tomato plants, Jon Fleetwood reported on Substack.
The Defense Advanced Research Projects Agency (DARPA) — a division of the U.S. Department of Defense — also funded the research as part of its “Insect Allies” project, according to a study on the tomatoes published last month in BMC Plant Biology.
Whiteflies, or Bemisia tabaci, are a common pest that drinks sap from phloem, the food-conducting tissue in tomato plant stems and leaves, sometimes causing the plant to dry up. The insects also excrete a sticky substance called honeydew, which attracts ants.
Whiteflies can decimate crops. The BMC study estimates the pest causes $2 billion in annual losses in cassava production in Africa alone, which can cause food insecurity in regions that rely on the crop.
The researchers aim to develop a genetic modification (GM) technology that could modify plants to produce proteins that target and destroy whitefly eggs. The authors note that targeting egg viability is a “unique strategy” for transgenic plants, setting it apart from most GM insecticidal plants that target adult insects.
Fleetwood raised concerns about the technology’s potential to harm human health and the environment.
“If commercialized, these ‘[t]ransgenic plants’ — genetically engineered to include genes from other species — could introduce reproductive-disrupting insecticidal compounds into the human food chain,” Fleetwood wrote.
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