Making sex deadly for insects could control pests that carry disease and harm crops
Making sex deadly for insects could control pests that carry disease and harm crops
Tags: Genetically modified organisms, Mosquitoes, Population suppression, Risk and safetyBill Sullivan, The Conversation, 2025.
Insects do a lot more harm than ruining picnics. Some insects spread devastating diseases, while others cause staggering economic losses in agriculture. To control some of these pests, scientists are developing males that make sex a deadly event. The stakes are high. Mosquitoes carry viruses such as dengue, West Nile and Zika, as well as parasites that cause malaria. Researchers estimate that mosquitoes have caused the deaths of 52 billion people overall – nearly half of all the humans that have ever lived.
Other insects cause major crop damage, jeopardizing the food supply and driving up prices. According to the Food and Agriculture Organization of the United Nations, 20% to 40% of global crop production is lost to pests annually at a cost of US$70 billion. Pesticides have been the front-line defense against insects, but many bugs have evolved resistance to these chemicals. Some pesticides can indiscriminately kill beneficial insects, harm the environment and endanger human and animal health. Some researchers worry that certain pesticides can cause cancer or have damaging effects on human nervous and endocrine systems.
I’m a microbiology researcher studying infectious disease. New solutions that do not harm humans and the environment to control disease-carrying insects and agricultural pests could lead to fewer people contracting dangerous diseases. In the past few years, a variety of genetic engineering approaches have emerged as promising tactics to combat problematic insects.
