Why Garlic Repels Mosquitoes and Keeps Them From Breeding

Garlic, as your grandmother may have told you, repels mosquitoes; it also completely blocks them from mating and laying eggs. Diallyl disulfide, it turns out, deserves the credit.
Trace
Daily edition · 2026-05-24 · 116 stories

Garlic, as your grandmother may have told you, repels mosquitoes; it also completely blocks them from mating and laying eggs. Diallyl disulfide, it turns out, deserves the credit.
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It's long been accepted that the smoother the surface, the lower the aerodynamic drag. That turns out not always to be the case.
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There are black holes that are too big to be born from the death of a star but aren’t quite supermassive either. There’s finally evidence for where those came from.
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Unsurprisingly, the Denver gorpcore brand that makes many of the best bags in the world has delivered a perfect backpack.
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You can significantly improve the YouTube experience with these browser add-ons.
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Keep your phone, laptop, handheld gaming console, and other electronics running with these travel-friendly power banks.
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It’s time to prep your kit ahead of the summer season. These tools will do the job.
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A nonprofit in the city’s most troubled district has turned to robotic meal prep tech to make up for a dearth of human volunteers.
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Like other AI wearables, Amazon's Bee offers an odd combination of convenience and privacy anxiety.
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Deep Fission is seeking an IPO that could raise $157 million, though investors may have trouble buying the nuclear startup's story.
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IBM and Scuderia Ferrari HP take TechCrunch inside how they are redefining the fan experience.
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Apple, Meta, and Google offer special security modes that provide your devices more secure against targeted spyware attacks. Here are how those modes work, what they do, and how to switch them on.
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SolarSquare could be valued at up to $500 million in the financing expected to close next month.
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What sets Dreamie apart from all of the other fancy alarm clocks is laughably simple: It can play podcasts.
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There's an effort on Capitol Hill to increase funding for the Nonprofit Security Grant Program, which awards funding to houses of worship to harden their defenses. In 2024, roughly a third of those who applied actually received funding.
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Mungiu took home the prestigious Palme D'Or for his film Fjord, a culture-war drama set in Norway.
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RaDonda Vaught was convicted of negligent homicide after dispensing the wrong drug to a patient. She now gives speeches about hospital safety in an era of automation and artificial intelligence.
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The young women make photos that look at life — how it is, how they wish it could be — under Taliban rule. The images are on display at the Photoville Festival in Brooklyn, New York.
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A man who opened fire Saturday near a White House security checkpoint is dead after being shot by officers who returned fire, the U.S. Secret Service said. It was the third incidence of gunfire in the vicinity of President Donald Trump in the past month.
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The number of cases — and deaths — in Bangladesh is staggering. As of Sunday, 528 have died, mostly children. How did this measles outbreak begin? And how is the country responding?
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At a time when hopes are dim for resolving the Israeli-Palestinian conflict, some Arab and Jewish entrepreneurs are partnering across the divide, hoping to prove what's possible.
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Dozens of athletes — including former Olympians — will participate in the Las Vegas event while using performance-enhancing drugs.
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DHS was originally conceived in the interest of unity and harmony — and the phrase "homeland security" was originally meant to be reassuring.
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At least two people were killed and 77 injured in the attack, which included the use of a powerful hypersonic ballistic missile called the Oreshnik, which is capable of carrying a nuclear warhead.
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SpaceX has more to prove before flying Starship all the way to low-Earth orbit.
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The white whales join the short, contested list of animals that see themselves.
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The Knicks continued their dominant run through the Eastern Conference playoffs and are one win from the NBA Finals after routing the Cavaliers in Game 3 for their 10th straight win.
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Oleksandr Usyk survived a scare against kickboxer Rico Verhoeven to score a controversial 11th-round stoppage in Giza, Egypt, preventing what would have been a monumental upset during the WBC heavyweight title bout.
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Former NFL quarterback Johnny Manziel flashed some skills as a fighter in his MMA debut, stopping social media influencer Bob Menery in the first round Saturday night before saying one fight was "good enough."
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USMNT coach Mauricio Pochettino has selected his 26-man roster for the upcoming World Cup, with Gio Reyna among those included, sources confirmed to ESPN.
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The Eastern Conference finals is now 1-1 heading to Montreal. Here's what it all means.
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With Carlos Alcaraz out, can anyone beat Jannik Sinner for the men's French Open title? Will Coco Gauff repeat? Our experts weigh in.
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Which tennis players are most likely to win the French Open -- and who could surprise?
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The Steelers teammates share the details of the TD -- and the celebration -- from Super Bowl XL.
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The English Championship playoff final is known as "the richest game in sports" as it gets you promoted to the Premier League, but how do you go about staying there?
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Kyle Busch died after severe pneumonia progressed into sepsis, resulting in rapid and overwhelming associated complications, according to a statement released by his family.
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Linebacker Abdul Carter was among Giants players who took to social media to shut down speculation that there was a locker room rift after quarterback Jaxson Dart introduced Donald Trump at a pep rally.
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Nikolaj Ehlers, in his first season with the Hurricanes, got loose up the center of the ice and shot a puck past Jakub Dobes at 3:29 of overtime to lift Carolina past the Canadiens 3-2 and level the Eastern Conference finals at 1-1.
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Marta Kostyuk revealed that a missile strike hit just 100 meters from her parents' home in Kyiv, Ukraine, hours before her match at the French Open.
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What makes the 2026 Defensive Player of the Year so dangerous isn't that he blocks so many shots. It's that he prevents players from shooting in the first place.
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Guardiola and Ferguson are arguably the top two PL managers of all time. Is there a way to crown a No. 1?
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This Memorial Day weekend, it's your civic duty to tune in to the Indy 500, and Ryan McGee brings you your guide to sounding super smart on race day.
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The shift in management is certain to spark a flurry of new fates for the capital, spanning public parks, national monuments and the Metropolitan Police Department.
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If you’re looking for a laptop that’ll still perform well several years from now, Apple’s latest MacBook Air is hard to beat. Now, in particular, is a good time to pick one up, as you can currently buy the 13-inch MacBook Air at Amazon in the run-up to Memorial Day with an M5 chip, 16GB […]
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This is The Stepback, a weekly newsletter breaking down one essential story from the tech world. For more on AI mischief, follow Robert Hart. The Stepback arrives in our subscribers' inboxes at 8AM ET. Opt in for The Stepback here. How it started Hacking the first generation of AI chatbots was a laughably simple affair. […]
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Waymo is the undisputed leader in the robotaxi space, operating a fleet of over 3,000 driverless cars in at least 10 cities across the US. A number of companies, including Tesla, Zoox, Avride, and Motional, are racing to catch up with the Alphabet-owned firm. But what if being No. 2 was actually better? Nuro, the […]
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Hiking is one of life's great joys. Turning off the screens and stepping out into nature for an extended period of time, perhaps even several days, is rejuvenating. Unfortunately, as someone with two young kids and a bad back, I'm not really able to go backpacking anymore. So I often find myself trying to live […]
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Roger Linn is a legend in the world of musical instruments. He's been at the cutting edge of music technology for decades. He created the LM-1, the first drum machine to use samples, and its successor, the LinnDrum, is one of the most iconic drum machines of all time. They were used on countless records […]
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Massive OLED TVs and Sonos speakers might be stealing the Memorial Day spotlight, but there are also plenty of great deals that won’t set you back nearly as much. In fact, some of the best discounts we’re seeing are on gadgets that retail for $50 or less, from portable chargers and 4K streaming devices to […]
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There isn't really a solid equivalent to Goodreads or Letterboxd for music lovers, but Record Club is aiming to change that. Yes, we have Rate Your Music, but its interface is crowded, and it feels more geared towards longer-form reviews than cataloging your listening habits and connecting with other fans. Record Club is clean and […]
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Captain Cristian Romero returns to London from Argentina for Tottenham's final match of the Premier League season against Everton.
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After Oleksandr Usyk beats Rico Verhoeven to retain his heavyweight world titles, who could he fight next?
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Lawrence Shankland is close to joining Rangers from Hearts with a deal for the Scotland forward near.
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Ukraine's Marta Kostyuk says she is grateful her family are alive after Russian missiles narrowly missed their Kyiv home the night before her French Open first-round match.
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Glamorgan's Jersey-born batter Asa Tribe continues to stake his claim for a senior call-up by impressing for England Lions against South Africa A.
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On the final episode of Football Focus, the hosts and pundits reminisce on their fondest memories from their time on the show.
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Max Dowman becomes the youngest player to start a Premier League game, at the age of 16 years and 144 days.
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Max Verstappen threatens to quit Formula 1 at the end of this season if planned changes to the engine regulations are blocked.
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George Russell beats Mercedes team-mate Kimi Antonelli to take pole position at the Canadian Grand Prix.
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Iran says Fifa has approved the country's World Cup training base being switched from the United States to Mexico.
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Watch highlights as Oleksandr Usyk beats Rico Verhoeven to retain his world heavyweight titles in Egypt following a controversial 11th-round stoppage.
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Watch some of the standout goals scored by Mohamed Salah for Liverpool. The Egyptian forward has revealed he will leave the club at the end of the season.
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Barcelona secure their fourth Champions League title in six seasons as Ewa Pajor and Salma Paralluelo each score twice to thrash Lyon in the final in Oslo.
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Watch highlights as Celtic beat Dunfermline Athletic 3-1 at Hampden to win the Scottish Cup.
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Sophie Devine hits 87 off 57 balls to help New Zealand recover from 11-4 to 170-5, a total which helps the White Ferns beat England by 14 runs in the second T20 international at Canterbury to level the series at 1-1 with one match to play.
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AC Milan are ready to let Rafael Leao leave for a cut-price fee with Manchester United interested, Jarrod Bowen could also be heading to Old Trafford, plus more.
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Jannik Sinner's dominance - and Carlos Alcaraz's absence - means the French Open has its biggest favourite for the men's title since Rafael Nadal in his pomp.
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From Rory McIlroy to mentality, Bordeaux are leading a golden era as France complete a Six Nations, Champions Cup and Challenge Cup clean sweep.
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The New York Knicks lead the Eastern Conference finals 3-0 and can wrap up the series on Monday.
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Responding to the interview, Sir Keir Starmer said it was “an appalling case” and that it was right that the sentences are reviewed.
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Six supermarket brand eggs cost £1 in 2022. How much are they now, why have they gone up, and is anyone profiteering?
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The first ever Enhanced Games are taking place this weekend in Las Vegas, with big names, big money and much controversy.
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Sunil Puniya was on his first sea job when a missile struck the oil tanker Skylight at the start of the Iran war.
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The actress's experience caring for her father inspired her to return to education in a new BBC show.
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The video game presents a young Bond before he has earned his "00" spy status.
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Officers stormed the building days after the party vowed to defy a court ruling removing its leaders.
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After Football Focus broadcasts its final episode after 52 years on the air, former presenters and pundits reminisce about the good times.
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At least 82 people have been killed after a gas explosion at the Liushenyu mine in China.
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The Oreshnik missile, which reportedly travels over 10 times the speed of sound, was used, Russia has confirmed.
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Officials say a suspect approached a checkpoint near the building and opened fire, and that a bystander was wounded.
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Ashleigh Stanley says the dressed-down ceremony gave her husband a "reality check" on married life.
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The presenter says the loss of a pet can be as significant as human loss.
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Body cam footage shows the moment a baby was thrown from a window and caught by an officer during a house fire.
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Top stories, breaking news, live reporting, and follow news topics that match your interests
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Newscast is live at Hay Festival and looking at the UK’s relationship with the EU.
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Activists from the flotilla have made numerous allegations of abuse and mistreatment, which the Israeli government denies.
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Officials say the train had been transporting military personnel home for Eid when it was attacked by armed separatists.
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Michaela Allen reported abuse at the age of seven, but police errors meant no-one faced justice.
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Maria Elena Vizcaino and Zijia Song discuss the fresh wave of political risk rippling across emerging markets, how they’re affecting financial assets and how investors are positioning for the resurgent jitters.
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Bloomberg White House Correspondent Jeff Mason and Bloomberg News Reporter Dan Williams join David Gura, Christina Ruffini, and Lisa Mateo on Bloomberg This Weekend to discuss the White House announcement that a deal with Iran to end the war and reopen the Strait of Hormuz is forthcoming. (Source: Bloomberg)
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US Secretary of State Marco Rubio said there may be “some good news” regarding the blocked Strait of Hormuz in the coming hours, as Iran and Washington press ahead with peace negotiations.
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US Secretary of State Marco Rubio said there may be “some good news” regarding the blocked Strait of Hormuz in the coming hours, as Iran and Washington press ahead with peace negotiations. Bloomberg's Horizons Middle East and Africa anchor Joumanna Bercetche and Axios Congressional Reporter Andrew Solender joined David Gura and Christina Ruffini on Bloomberg This Weekend to discuss. (Source: Bloomberg)
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US Secretary of State Marco Rubio said there may be “some good news” regarding the blocked Strait of Hormuz in the coming hours, as Iran and Washington press ahead with peace negotiations. Bloomberg's Managing Editor of America's Weekends Kevin Whitelaw, Bloomberg's Horizons Middle East and Africa anchor Joumanna Bercetche, and Politico White House Reporter Sophia Cai joined Christina Ruffini and David Gura on Bloomberg This Weekend to discuss the latest on a possible Iran deal. (Source: Bloomberg)
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President Donald Trump indicated he would speak directly with Taiwanese President Lai Ching-te after pausing a $14 billion sale of arms to the country in a move that would risk disrupting newly stabilized ties between the US and China. Ambassador Alexander Yui, Taiwan's representative to the U.S. joined David Gura, Christina Ruffini on Bloomberg This Weekend to discuss. (Source: Bloomberg)
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Rep. Glenn Ivey (D-MD) joined Christina Ruffini and David Gura on Bloomberg This Weekend for a wide-ranging conversation on a possible deal with Iran, the anti-weaponization settlement and more. (Source: Bloomberg)
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The unique threat artificial intelligence poses to students’ education and their hopes of someday landing a job has made universities a powerful crucible for AI resistance. Students are pushing back against the adoption of AI on campuses, with some organizing protests, petitions, and performance art to express their concerns about the technology's effects on their education and job prospects. Jo Constantz joined Christina Ruffini and David Gura on Bloomberg This Weekend to discuss the backlash against AI that is part of a wider trend, with students, professors, and community members questioning the impact of AI on the environment, employment, and the value of human connection and critical thinking. (Source: Bloomberg)
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The Mandalorian and Grogu, the first film in the Star Wars franchise in seven years, was the highest-grossing movie in the US and Canada over the four-day holiday weekend with $102 million in ticket sales.
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Pope Leo XIV’s launch of his first encyclical focusing on artificial intelligence next week will feature an unexpected guest: Christopher Olah, co-founder of Anthropic. Bloomberg News reporter Flavia Rotondi joined Christina Ruffini and David Gura on Bloomberg This Weekend to discuss how Pope Leo has picked AI as a key issue in his pontificate. (Source: Bloomberg)
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Uber Technologies Inc. has offered to take over Delivery Hero SE in a deal that would value the German delivery company at about €10 billion ($11.6 billion) as it seeks to ramp up competition with DoorDash Inc. outside the US.
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The world’s best-performing yet most volatile market is set to debut its first ever single-stock leveraged exchange‑traded funds this week, tools that have the potential to amplify gains and losses.
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Congo suspended flights to the eastern city of Bunia and regional health ministers warned of escalating cross-border risks from Ebola as the outbreak spread across three provinces and overwhelmed contact-tracing efforts.
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A liquefied natural gas tanker carrying a shipment for India has exited the Strait of Hormuz, the first for the country from the Persian Gulf since the Iran war began months ago as the region’s exporters discreetly supply key buyers.
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The European Central Bank is heading for an interest-rate increase next month unless a sustainable peace deal between the US and Iran can be found, according to Governing Council member Martin Kocher.
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China’s world-beating coal production has helped shield its economy from the worst of the Iran war shock. Now the deadliest mining disaster in years is raising uncomfortable questions about the cost of that drive.
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The Federal Reserve’s favored top-line inflation gauge is rapidly approaching 4% as a war-driven spike in energy costs generates unease that price pressures will broaden.
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Investors in emerging markets are getting slammed by a fresh wave of political turmoil that is derailing bets from Latin America to Eastern Europe.
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Shortly after 6pm Saturday a 21-year-old man approached a checkpoint near 17th Street and Pennsylvania Avenue and opened fire on Secret Service officers. The agents returned fire, striking the gunman, who was transported to a local hospital and later died. Lisa Mateo on Bloomberg This Weekend gives the latest update on the situation. (Source: Bloomberg)
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For all the hand-wringing over war-related inflation fears, there are signs that other drivers are having as much a bearing on longer-term borrowing costs.
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New strain of virus, aid cuts, and cultural norms around burials and touch add to difficulties in stemming outbreakThe warnings from aid groups and healthcare workers in the Democratic Republic of the Congo have been stark, their calls for coordinated international action impassioned.As the country reels from the return of the Ebola virus, there is growing concern that its fragile healthcare system will struggle to cope with an outbreak that experts say goes well beyond the number of confirmed cases. Continue reading...
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Exclusive: prison multinational MTC uses a ‘minimalist staffing model’ that critics say is putting detainees and staff in serious dangerGet our breaking news email, free app or daily news podcastA series of catastrophic security failures involving the US private prison company running Australia’s immigration detention centres has allowed the escape of high-risk detainees, caused ill-equipped staff to be stabbed and hospitalised, and triggered multiple investigations, one of which warned its “minimalist staffing model” was putting workers and detainees at risk.Guardian Australia can reveal that in September 2025, just six months after Management and Training Corporation assumed control of onshore detention, the home affairs minister, Tony Burke, was forced to haul in the company’s president from the US to dress him down in a secret face-to-face meeting.Seriously ill detainees are missing medical appointments because MTC lacks the staff to escort them to health centres, a situation that has infuriated the home affairs department.Two MTC staff members were admitted to hospital with smoke inhalation after trying to rescue an unconscious detainee from a fire. Investigators found MTC had not given the staff basic respiratory equipment and fire-response training six months after assuming control of the centre.More than 12 escapes or attempted escapes have occurred in the 14 months MTC has had control of the system. A significant number took place during transport and escort operations to hospitals, airports or detention centres.A child sexual abuse offender deemed high-risk escaped MTC custody during an escort to Sydney’s Bankstown hospital despite being handcuffed and supposedly under close watch.In September a detainee absconded by shimmying up a light pole next to a boundary fence at Brisbane immigration detention centre. His disappearance was not discovered for 12 hours.Late last year two detainees were able to flee a guarded MTC vehicle travelling less than 500m in Melbourne. One managed to evade capture for four days.The risk assessment system MTC uses to classify detainees is so broken that Comcare, the federal work safety regulator, has warned the home affairs department it is putting staff at serious risk of violence. Continue reading...
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Regulators and gambling harm advocates have been closely watching the rise in popularity of Polymarket and KalshiGet our breaking news email, free app or daily news podcastUS-based “prediction market” websites are taking tens of thousands of dollars in bets on Australian elections and even specific words the prime minister, Anthony Albanese, says in parliament, with gambling harm advocates and the wagering lobby raising alarm.Australian financial and media regulators said they were monitoring the explosion in popularity of platforms like Kalshi and Polymarket, which operate financial exchanges where users buy “shares” in contracts on the outcome of events. Continue reading...
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The 39-year-old was reportedly fishing at Kennedy Shoal between Cairns and Townsville when emergency services alerted about middayGet our breaking news email, free app or daily news podcastA man has died after a shark attack on the Great Barrier Reef south of Cairns.The 39-year-old had reportedly been fishing at Kennedy Shoal, a shallow reef about 50km off the Queensland coast, between Cairns and Townsville. Continue reading...
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This blog is now closed. Get our breaking news email, free app or daily news podcastClimate activists say they have blocked two coal ships from entering Newcastle portClimate activists say they have stopped two coal ships from entering the Port of Newcastle this morning after kayakers and a small boat entered the channel.I grew up in the best years economically in Australia’s history, and I can’t sleep at night thinking about my 5 great-grandkids trying to live on a dead planet if we keep mining coal. I want to see more people my age standing up for what’s right.There’s plenty of conversations going on all the time.I think there’s so many people in politics for the right reasons and, when you’re in there, you want to say, well, how do we actually ensure that people can elect people that are going to come here and really deal with the root causes of the problems that we’re facing, because we haven’t seen that.How do you be part of changing our country for the better? For me at the moment, that is serving people in the ACT, engaging on each issue, bringing solutions, using whatever power I have in the Senate to actually work on behalf of the people that have sent me there. As to what that looks like in the future, who knows? Continue reading...
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Rightwing commentator says she is hundreds of thousands of dollars out of pocket and claims she was misled by promoter RocksmanGet our breaking news email, free app or daily news podcastNone of the 15,000 ticket holders for conservative influencer Candace Owens’ cancelled Australian tour are expected to get their money back from the promoter, after it spent all its money then collapsed.Owens herself says she is hundreds of thousands of dollars out of pocket and claims she was misled by the promoter, Rocksman, a company with links to the influential conservative lobby group Turning Point Australia. Continue reading...
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More than 20,000 attacks on markets, farmland and food distribution systems have been recorded since 2018Hunger is being increasingly exploited as a weapon of war with more than 20,000 documented incidents of “food-related violence” in the past eight years, new analysis reveals.Attacks include 1,261 strikes on markets used by families for daily groceries and 863 incidents in which food distribution systems were targeted and workers killed. Continue reading...
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But Trump administration will not return detainees deported to third countries in disease-stricken regionThe Trump administration will temporarily pause the removal of refugees to the Democratic Republic of the Congo (DRC) during a spiraling Ebola outbreak, according to reporting by Politico, but experts say the move won’t help prevent the spread of the disease.At least one woman is now in limbo after officials moved her to Kinshasa, the capital of the DRC, and now say they won’t bring her back because of the Ebola travel ban – despite a judge’s order for her return. Continue reading...