Tag

Mosquitoes

All articles tagged with #mosquitoes

science5 days ago•6 min saved

Why Some People Attract More Mosquitoes: It’s All About Chemistry

A new synthesis of decades of research shows female mosquitoes first zero in on humans by exhaled carbon dioxide, with body size, metabolism, pregnancy, and exertion increasing the cue. Once close, skin-emitted chemicals—notably carboxylic acids from sweat and skin microbes, plus the mushroom-scent compound 1-octen-3-ol—drive bite attraction and are resilient to washing due to rapid skin-microbiome reestablishment. Blood type signals remain inconclusive, while dark clothing and alcohol can heighten risk. Notably, some pathogens may manipulate hosts to attract more mosquitoes (malaria via HMBPP; dengue/Zika through skin-microbiome changes). Practically, this points to repellents that mask key signals or alter the microbiome, and field tests to identify transmission hubs.

via Indian Defence Review|

#1-octen-3-ol #carbon-dioxide #host-selection

local8 days ago•22 min saved

Chicago’s Mosquito Ranking Gathers Attention, Summer Forecast Remains Unclear

Orkin ranks Chicago No. 2 for mosquito activity over the past year, but experts warn the data may reflect the number of treatments more than actual mosquito levels. Climate change is extending the mosquito season and expanding invasive species, with West Nile risk currently low but potentially rising later in the season. Residents are advised to dump standing water, use EPA-approved repellents, and report stagnant water to 311.

via Block Club Chicago|

#climate-change #local #mosquitoes

animals9 days ago•36 min saved

Why some people are mosquito magnets, and what science now explains

A new review compiles years of work showing mosquitoes locate humans via chemical cues: CO2 in breath guides them from afar, then skin-emitted compounds like carboxylic acids (and related molecules such as 1-octen-3-ol) attract them up close; the skin microbiome and certain pathogens can tilt the balance toward more bites, informing potential repellents and skin-microbiome approaches to reduce transmission risk.

via Earth.com|

#animals #carbon-dioxide #carboxylic-acids

home10 days ago•10 min saved

Tackle Mosquitoes at the Source With Expert-Backed Home Solutions

NBC Select panels expert guidance and product picks for ridding homes of mosquitoes: start by identifying and eliminating standing water to stop breeding, then use a mix of larvicidal options (like mosquito dunks) and devices such as indoor plug-in traps (Zevo), outdoor repellents (Thermacell), bug zappers, and body repellents to prevent bites and entry.

via NBC News|

#home #mosquito-dunks #mosquitoes

biology11 days ago•16 min saved

Diallyl Disulfide: Garlic’s Secret to Slowing Insect Reproduction

Yale-led researchers screened 43 fruits and vegetables and found that garlic’s diallyl disulfide can disrupt mating and egg-laying in fruit flies, Aedes mosquitoes, and tsetse flies by acting on the taste receptor TrpA1, offering a cheap, safe avenue for eco-friendly pest control through phytoscreening.

via Gizmodo|

#biology #diallyl-disulfide #garlic

technology11 days ago•8 min saved

Beat the Bite: Top Mosquito-Fighting Gadgets for Summer

The article surveys affordable, chemical-free mosquito gadgets for indoors and outdoors—GeckoMan electric fly swatters, Thermacell Patio Shield, Bug-A-Salt Orange Crush 3.0, Magic Mesh Repellant Watch, and Zevo Flying Insect Trap—highlighting practical pros and downsides (wind impact, noise, wearability, cartridge costs) and noting most items are under $50 with strong user ratings.

via SlashGear|

#chemical-free #gadgets #home-technology

science13 days ago•38 min saved

Heat signals: mosquitoes use infrared warmth to find humans, study shows

A UCSB-led study found infrared radiation from human skin temperatures doubles female Aedes aegypti mosquitoes’ host-seeking when combined with CO2 and human odor, revealing a new heat-detection cue that helps mosquitoes locate humans up to ~70 cm away. The mechanism likely involves heat-activated neurons on the mosquitoes’ antennae rather than visible-light receptors, with implications for improved traps and understanding disease transmission as climate change expands mosquito ranges.

via Earth.com|

#aedes-aegypti #host-seeking #infrared

science1 month ago•4 min saved

Iceland’s Mosquito-Free Era Ends as Outdoor Mosquitoes Are Confirmed

Three wild mosquitoes of the species Culiseta annulata were confirmed in Iceland, marking the first outdoor presence and ending the country’s mosquito-free status; the finding underscores how warming temperatures are expanding mosquito-friendly habitats, though this species is mainly a nuisance rather than a major disease vector.

via Indian Defence Review|

#climate-change #culiseta-annulata #iceland

wellness1 month ago•14 min saved

Why Mosquitoes Bite Some People More—and How to Prevent It

Mosquitoes aren’t equally attracted to everyone: factors like blood type (Type O vs A), CO2 output, lactic acid, body heat, and even clothing color can make some people more likely to be bitten. To prevent bites, avoid peak mosquito times (dawn/dusk), cover exposed skin, use a 5% DEET repellent for about 90 minutes of protection, and keep air moving with a fan. Citronella lacks solid evidence; if bitten, treat with ice, hydrocortisone, or non-drowsy antihistamines.

via HuffPost|

#bites #blood-type #co2

health1 month ago•6 min saved

Big Apple Braces for Potentially Record Tick and Mosquito Season Amid Warming

New York City may face its worst tick and mosquito season yet as warming weather expands vector habitats. Early CDC data show 71 tick-bite ER visits per 100,000 (and 163 tick-related visits per 100,000 in the Northeast, up from 52 in March), with ticks now reported in Central Park, Prospect Park, and in about 70% of NYC parks. The Asian tiger mosquito continues to spread, raising risks for diseases like West Nile, chikungunya, and Lyme disease; tick control remains challenging, so prevention focuses on repellents, permethrin-treated gear, standing-water elimination, and thorough tick checks. A Lyme disease vaccine is in trials but has no timeline for rollout.

via New York Post|

#alpha-gal-syndrome #health #lyme-disease

conservation1 month ago•17 min saved

Iceland’s First Mosquitoes Signal a Warming Arctic and a Call for Global Insect Monitoring

Iceland has recorded its first mosquitoes (Culiseta annulata), underscoring rapid Arctic ecological shifts driven by warming and human activity. Researchers warn that the Arctic’s changing arthropod communities could ripple through ecosystems and climate feedbacks, but long-term, standardized monitoring remains underdeveloped. They advocate an international, coordinated arthropod monitoring network (Network for Arthropods in the Tundra) to track movements and determine whether new arrivals persist across the Arctic.

via Gizmodo|

#arctic #biodiversity #climate-change

science1 month ago•7 min saved

Mosquitoes Target Humans With Combined Visual and CO2 Cues, Study Finds

Researchers used Bayesian inference to build a dynamic, ~30-parameter model of Aedes aegypti flight from 53 million data points collected in 20 experiments, revealing that mosquitoes integrate visual cues and carbon dioxide to locate humans. They identified two flight modes (active exploration and idle/landing prep) and found visual cues alone attract mosquitoes to dark objects but don’t trigger landing without additional cues, while CO2 prompts rapid speed changes and erratic flight. When both cues are present, mosquitoes cluster closer to targets, suggesting multisensory lure designs could improve traps and disease control.

via WIRED|

#bayesian-inference #mosquito-traps #mosquitoes

health2 months ago•22 min saved

CDC warns travelers of dengue risk in 16 countries

The CDC updated a Level 1 travel advisory to warn travelers about dengue in 16 countries, urging precautions like long sleeves, insect repellent and sleeping in screened rooms; dengue can rapidly worsen and cause severe symptoms such as brain bleeding, and there is no vaccine for travelers; most US cases come from international travel, with outbreaks recurring every few years.

via New York Post|

#cdc #dengue #dengue-fever

science2 months ago•7 min saved

Mosquitoes Target Humans Using CO2 and Dark Cues, Not by Following Each Other

Georgia Tech and MIT researchers tracked hundreds of female Aedes aegypti in 3D to show each mosquito independently uses visual cues and CO2 to fly toward humans; the strongest attraction occurs when both cues are present, causing swarming and feeding around the head and shoulders. The study, published in Science Advances, could inform smarter traps and control strategies, including intermittent suction and lighting cues rather than constant signals.

via ScienceDaily|

#carbon-dioxide #flight-behavior #mosquitoes

environment2 months ago•9 min saved

Victor Valley Crane Fly Surge Sparks Mosquito Confusion, But They're Harmless

A surge of crane flies across the Victor Valley has residents mistaking the harmless insects for a mosquito infestation; crane flies do not bite and can be beneficial pollinators, with larvae helping decompose material. The spike is likely linked to recent moist, cooler weather, and experts say the situation is temporary. Residents are advised to reduce outdoor lighting and seal doors and windows to minimize entry.

via VVNG|

#crane-flies #environment #insects