All articles tagged with #sterile insect technique
San Gabriel Valley Mosquito and Vector Control District is releasing about 480,000 sterile male Aedes aegypti mosquitoes over 16 weeks in a 25-acre Bassett area to prevent wild females from producing offspring, using Wolbachia bacteria; since these are males, they don’t bite, and the program aims to reduce mosquito bites and dengue risk as peak season arrives.
Sacramento’s Rosemont neighborhood kicked off a Sterile Insect Technique program by releasing 144,000 sterile male Aedes aegypti mosquitoes to outcompete wild males and reduce the invasive population, part of a plan to release 2.3 million sterile insects over 16 weeks. The Wolbachia-based approach is environmentally friendly and targets only Aedes aegypti, with previous Natomas pilot showing up to 40% population reduction. The program aims to lower disease risk from dengue, Zika, and chikungunya, while public health officials emphasize the need for residents to drain standing water, use repellents, and report unusual activity. If successful, the program could expand to additional areas.
The piece recounts how the U.S. defeated screwworms in 1966 via the Sterile Insect Technique—mass-releasing sterile flies developed by Edward Knipling and Raymond Bushland—after decades of outbreaks and early missteps, including Florida and Southwest eradication efforts and cross-border cooperation with Mexico; it warns that today’s re-emergence demands large-scale, preventative action and renewed funding for monitoring to avoid repeating past economic and agricultural losses.
An outbreak of New World screwworm, a flesh-eating parasite that infests warm-blooded animals, has returned to the United States with 15 confirmed cases in Texas and New Mexico, mainly affecting cattle. Officials are deploying sterile flies, expanding surveillance, and tightening border and movement controls to contain it, warning the outbreak could cost billions if it spreads, even as human risk remains low. The situation echoes the historic success of the sterile-insect technique used to eradicate the pest decades ago.
U.S. officials report 12 confirmed cases of New World screwworm (11 in Texas, 1 in New Mexico) as the flesh-eating parasite re-emerges after spreading north from Central America; eradicated in the 1960s, it threatens cattle, sheep and wildlife, prompting surveillance, testing and millions of sterile-male releases, a Kerrville research lab expansion, and a Texas disaster declaration to contain the outbreak; meat remains safe and early detection is crucial.
A revived New World screwworm has been found in the US (Texas and New Mexico) after decades of eradication, with researchers tracing its comeback to illegal Central American cattle trafficking; the outbreak threatens billions in beef losses, has involved a dog case in New Mexico, and has spurred discussions on control methods including sterile fly releases and the controversial SWASS tool, underscoring the need for cross-border action to halt the pest at its source.
The United States confirmed a natural incursion of the New World screwworm in Texas cattle—the first since 1982—after decades of eradicating the pest with mass releases of sterile male flies. Facing potential billions in economic impact from livestock losses, the USDA is funding a $750 million facility in Texas to produce about 300 million sterile screwworms per week by 2027. While the comeback mirrors the historic campaign, experts note aging facilities elsewhere and a growing debate among bioethicists about using genetic modification to wipe out the species, a method not yet ready for deployment.
The USDA confirmed the New World screwworm fly has reached south Texas for the first time in decades, detected in a 3-week-old calf near La Pryor. A 12-mile quarantine zones restricts movement of warm-blooded animals while authorities deploy sterile flies and expand surveillance. Officials say there is no evidence of a mass infestation and the fly’s flesh-eating larvae can be treated; the case follows decades of eradication and ongoing investments to rebuild sterile-fly production facilities in Mexico and Texas to prevent further spread. The incident highlights continued biosecurity vigilance at the U.S.-Mexico border.
The New World screwworm fly has reappeared in the United States, signaling a potential northward spread that could threaten livestock. In response, authorities are expanding a sterile-fly program, including a facility in Edinburg, Texas, where dyed fly pupae are used to rear and release sterile males to curb the population.
Google is asking the U.S. EPA for an experimental permit to release up to 32 million Wolbachia-infected sterile male Aedes aegypti mosquitoes in California and Florida over two years, using automated rearing and AI to separate sexes and release them in targeted areas. The public comment period ends June 5, and Google cites Singapore’s results—80-90% suppression of Aedes aegypti and dengue reductions—as evidence this tech-driven approach could be a viable alternative to pesticides.
Google (Alphabet) has asked the EPA for permission to breed and release up to 32 million Wolbachia-infected mosquitoes in Florida and California over two years as part of its Debug project, using the sterile-insect technique to reduce wild mosquito populations and curb transmission of diseases like West Nile, dengue, Zika, and more. The plan envisions 16 million releases in Florida first, then 16 million in California, with robots rearing and AI sorting by sex. The EPA is reviewing the Experimental Use Permit and opening public feedback, while some residents express concerns about environmental impact and backyard exposure.
Los Angeles County’s vector-control district is expanding the sterile insect technique to curb Aedes aegypti mosquitoes linked to dengue, releasing sterilized males and seeking to broaden the program beyond Sunland-Tujunga. The expansion hinges on a new funding mechanism—a up to $20 per year per single-family home via a property benefit assessment on top of the existing $18.97—despite only 47% of ballots supporting the increase and opposition from some business owners. Pilot releases in two Sunland-Tujunga neighborhoods cut the female mosquito population by about 82%, but officials say broader adoption requires more funds and public buy-in; a second ballot round is planned while production continues in the insectary and field releases.