Associative learning turns DEET from aversive to appetitive in Aedes aegypti

3 days ago (journals.biologists.com)

Could this already be happening out in the wild?

I hope these mosquitoes were not released in the wild.

The simple answer would be to add a natural strongly repellent gentle oil to the DEET spray.

  • There are no natural oils that have been proven to stay effective, or are effective as DEET.

    Go ahead, hose yourself down with Lemon oil, citronella, oil, or lemon eucalyptus oil. They simply do not work.

  • A couple years back, I spray some DEET on my shoes, 5 seconds later, a tiger mosquito tried to bite me on that spot (and yes on the shoe itself, just insane to see it trying ).

    They already loved that shit.

  • And remove the DEET from it, apparently… at least until it loses its appetitive charge.

    Until, of course, they learn to like the replacement oil. At which point, break back out the DEET!

  • Spray made from lemon eucalyptus works[1]. Not as well as DEET, but it works.

    [1] https://www.consumerreports.org/health/insect-repellent/oil-...

    • I don’t understand why sharing an objective study with good news would be downvoted, someone please explain?

      I’m not saying you have to use it; it’s good news for people who have concerns about other chemicals. It works—less effectively, but it works.

      “Repellants containing (..) oil of lemon eucalyptus have also been found to be effective.”[1]

      [1] Iowa Department of Health, “Controlling Spread of West Nile Virus“ https://hhs.iowa.gov/health-prevention/providers-professiona...

      1 reply →

  • Yeah, I would not be surprised if this learned behavior is passed on epigenetically. This is almost like gain of function research potentially.

that explains. I was always wondering why in Siberia (where i worked for 2 summers back then at university times) coming out from house with freshly applied DEET you're getting covered with mosquitos - i was attributing that to the especial ferociousness of the mosquitos there - yet it sounds like the smell of DEET for them in those towns may have become like a BBQ smell for us :)

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  • It's OK, we still have picaridin

    • DEET should ruin things less if you stick to 35-40%. There is practically no benefit in going higher anyway. Those using 100% are asking for damage.

      Picaridin gives me worsened tinnitus, so I can't use it unless maybe I slowly try to condition myself to it over a week. DEET doesn't.