Leaf Miner Fly Babies Scribble All Over Your Salad | Deep Look

6 Apr 2021
173 724 Ditonton

This fly’s larvae tunnel inside bitter-tasting greens like arugula and kale, leaving squiggly marks behind. The plants fight back with toxic chemicals. So before laying her eggs, the fly mom digs into a leaf and slurps its sap - a taste test to find the least toxic spot for her offspring.
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As they feed inside a leaf’s spongy layer, leaf miners etch intricate patterns that are visible to us on the leaf’s surface. The whitish tan or light gray markings can be neatly serpentine or converge and have a blotch-like appearance, depending on what insect made them. Many different flies, butterflies and moths lay eggs on the leaves of citrus, vegetables and ornamental plants that grow into leaf miner larvae.
One leaf miner that gardeners might find in their arugula is the larva of a fly called Scaptomyza. The fly is related to - and looks a lot like - the fruit fly you might find buzzing around your ripe bananas.
The chemicals called isothiocyanates that give leafy greens like arugula their bitter taste are precisely the plants’ defense mechanism against pests. Scaptomyza flies have evolved to tolerate low levels of these compounds. One way in which the flies deal with these toxic chemicals is by laying their eggs on the leaves with the lowest concentrations.
--- Can leaf miners kill plants?
Leaf miners rarely do enough damage to even come close to killing a plant, but they make individual leaves inedible. If given enough time, a leaf miner can be particularly damaging to vegetables that are harvested specifically for their leaves. But don’t worry if you mistakenly eat a larva - it won’t make you sick.
--- How do you treat leaf miners?
Most backyard gardeners only need to remove the damaged leaves by hand. Since leaf miners are tucked inside the leaf, insecticides aren’t very effective and can hurt beneficial pest predators like wasps, spiders and ladybugs.
Gardeners with a greenhouse or large numbers of plants can use parasitic wasps to control leaf miners.
---+ Read the entire article on KQED Science:
---+ More great Deep Look episodes:
Born Pregnant: Aphids Invade with an Onslaught of Clones
Sharpshooter Insects’ Sexy Vibrations Spell Trouble in the Vineyard
---+ Shoutout!
🏆Congratulations🏆 to the following 5 fans on our Deep Look Community Tab for correctly answering that the fly is cutting the leaf with her ovipositor:
Wei Lun Fung
Kitten Alburn
Navid Valente
Heavenly Emperor
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#leafminers #deeplook

  • Hi Deep Look fans! Want to learn more about how Scaptomyza fly moms choose a leaf to lay their eggs, or find out what makes the curlicues in your citrus leaves? Check out this article by Deep Look intern Marissa Sandoval: www.kqed.org/science/1973500/leaf-miner-fly-babies-scribble-all-over-your-salad Thanks for watching!

    Deep LookDeep Look4 hari yang lalu
    • Grossmazing

      world Peaceworld Peace9 jam yang lalu
    • Yas

      Merecca Claire VillariñaMerecca Claire Villariña20 jam yang lalu
    • I'm sick i know it's insect?!!!!!!

      Merecca Claire VillariñaMerecca Claire Villariña20 jam yang lalu

      Pristine Wen Swen CheePristine Wen Swen CheeHari Yang lalu
    • No lol

      RanMind YTRanMind YTHari Yang lalu
  • Amazing invisible world. (Sat 10 Apr 2021 21h42)

    Different SaturnerDifferent Saturner2 jam yang lalu
  • the leaf dram

    4004 intel4004 intel3 jam yang lalu
  • Who is here from the shorts?

    hamster culthamster cult10 jam yang lalu
  • Good thing I don't eat vegetables

    Dubbel FruitDubbel Fruit10 jam yang lalu
  • These lines always appear on our plants called "Pechay". *Jesus Christ, Does this mean I ate dead baby flies without even knowing?*

    Ŕęđ ĢêmŔęđ Ģêm11 jam yang lalu
  • everybody gangsta until u realise everything we eat has bugs in it

    ZENITSU 'ZENITSU '12 jam yang lalu
  • why am i watching this after i just had a salad 👁👄👁

    Ronan AustinRonan Austin13 jam yang lalu
  • Dang, I'm so uncomfortable due to my phobia but I can't stop watching ;-;

    OverOreoOverOreo14 jam yang lalu
  • that flies cuchie got teeth lol

    CXI.AnimusCXI.Animus15 jam yang lalu
  • I'm preparing for this garden seasons battle. harlequin bugs and leaf miners are my main enemies. You tell me what positive benefits they have going for them and I won't squish them. Home depot protip: give your neighbors the arugula and mustard greens to keep the pests away from your garden.

    SimplyOrange537SimplyOrange53715 jam yang lalu
  • Me tryin to eat salad Hol up wait a minute I said vegeterian salad no meat my guy

    Adrian FuentesAdrian Fuentes16 jam yang lalu
  • You hear skeleton noises: panik It is spooktober: kalm It is spooktober!: doot

    Ewan McKinlayEwan McKinlay18 jam yang lalu
  • 2:03 oh no r34 artists incoming

    Kek LeoneKek Leone18 jam yang lalu
  • Public health officials are working on a vaccine (for the fly)

    Brad ABrad A18 jam yang lalu
  • OMG😱

    Merecca Claire VillariñaMerecca Claire Villariña20 jam yang lalu
  • Metal screetch

    Raxanee and nala the kittyRaxanee and nala the kitty22 jam yang lalu
  • these are addicting

    michellemichelle22 jam yang lalu
  • "Jokes for you I'm into that"

    Ghivi FahmiGhivi Fahmi23 jam yang lalu
  • So basically salads are not for vegetarians?

    A HA HHari Yang lalu
  • I'm gonna need me one of those flies...

    LyzksLyzksHari Yang lalu
  • Really dumbfounding...............

    Sheikh Nazim AzizSheikh Nazim AzizHari Yang lalu
  • That fly be rubbing its hands together like it hit the jackpot.

    Antix taktixAntix taktixHari Yang lalu
  • Huh when I was younger I thought plants had those trails from snail slime now I know and it's more horrifying 😱

    picachufan2000picachufan2000Hari Yang lalu
  • Nice 👌

    Amit dasAmit dasHari Yang lalu
  • Title about scribbling. Barely any pictures of the art they make. Horrible

    Derek WattDerek WattHari Yang lalu
  • Oh my gosh! I saw the first part of this video, and I was like- “EWWWW” Love your content btw! It’s very interesting! :)

    xMoonxxMoonxHari Yang lalu
  • I love her voice!

    MazequaxMazequaxHari Yang lalu
  • Thank you for providing such insightful videos and all the information you add to your description!!

    Elise GaffgaElise GaffgaHari Yang lalu
  • ❤️❤️❤️

    Elise GaffgaElise GaffgaHari Yang lalu
  • Nutritious salad

    Chris GonzalezChris GonzalezHari Yang lalu
  • Great. Now I'm never going to look at salad the same. 😭

    ItsQueen BabiiItsQueen BabiiHari Yang lalu
  • Interesting I'm Jewish we always check our lettuce with magnifying glass next to a light bulb to get rid of any bugs.... I always wondered why ain't no one else did it , not only for religious reasons but who really wants to be eating larvae,...

    Laser KahnLaser KahnHari Yang lalu
  • The way she spread her ovipositor did something to me.

    Extra DipExtra DipHari Yang lalu

    Pristine Wen Swen CheePristine Wen Swen CheeHari Yang lalu
  • ._.XD

    Some Dood That Makes No SenseSome Dood That Makes No SenseHari Yang lalu
  • Whelp.. that ovipositor will be in my nightmares.

    m0rthausm0rthausHari Yang lalu
  • The photographer should get a raise

    uabiruabirHari Yang lalu
  • Is that what those markings were?? I was also so puzzled why my plants were all tatted up sometimes.

    ToastymuffintopToastymuffintopHari Yang lalu
  • i thought i was open minded enough to appreciate all parts of nature.. idk bout that atm 😅

    Riana MarcelinoRiana MarcelinoHari Yang lalu
  • all the vegans.. “Future Human Flies”

    sahangbaknei Guitesahangbaknei GuiteHari Yang lalu
  • Iew

    J MidJ MidHari Yang lalu
  • And vegans think that only animal matter is infested. Not to mention plants have a layer of skin called the epidermis too.

    FluorescentLightBeautyFluorescentLightBeautyHari Yang lalu
  • So vegan said being vegan save animal. This video just proves'em wrong. Life have to be balance. Not being vegan or non vegan, just dont be greedy and eat what we need.

    Mic LiebhartMic LiebhartHari Yang lalu
  • I Will eat this no more. Just meat.

    KarpenoKarpenoHari Yang lalu
  • Hey, it's free protein.

    RoseKindredRoseKindredHari Yang lalu
  • I don’t really care, it’s just extra protein 😄

    RanMind YTRanMind YTHari Yang lalu
  • Fly larva be like: *Mining away*

    Eggscapius Robloxius LudusEggscapius Robloxius LudusHari Yang lalu
  • 500’th comment Ik nobody cares but keep up the good work, deep look.

    Fancy PhantFancy PhantHari Yang lalu
  • This is why I hate salad

    Yusuf SennaYusuf SennaHari Yang lalu
  • I'm a gardener, and I keep getting these guys in my arugula and swiss chard. :( i always wondered how they go about their business.

    AnimeShinigami13AnimeShinigami13Hari Yang lalu
  • Vegans cant eat grass now

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  • I was just eating salad.. what have I done to myself..

    sickening_lovesickening_loveHari Yang lalu
  • I've gained a new appreciation for Deep Look after spending so much time in the garden during the quarantine.

    qeueu qeuqeueu qeuHari Yang lalu
  • Idk why this makes me want to start itching.

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  • Tell that do the vegans not us

    4Haan4Haan2 hari yang lalu
  • Leaf miners are so annoying

    Eros 530Eros 5302 hari yang lalu
  • Okay, so I was scrolling through youtube when I got this in my recommendations tab, but the rest of the title got cut off, and there was just periods, so what the title looked like was: "leaf miner fly babies scribble all over you" and I had a reason to believe that it said that, because this channel always puts "| Deep look" at the end of every video.

    Nutter Udder ManNutter Udder Man2 hari yang lalu
  • I mounted two Liriomyza trifolii adults on entomological pins for my tropical insect pests class, it wasn't easy.

    Wolframium TungstenWolframium Tungsten2 hari yang lalu
  • Master of muscle control.

    Richard RahlRichard Rahl2 hari yang lalu
  • Mmmmmm......those are my favorite greens too. These little guys have good taste.

    Bob CharlieBob Charlie2 hari yang lalu
  • Soooo interesting! Thank you Deep Look for expanding our world

    Murilo Cardoso de OliveiraMurilo Cardoso de Oliveira2 hari yang lalu
  • for some reason I'd always assumed these patterns on plants were from snails

    A129A1292 hari yang lalu
  • That's why Jews who keep Kosher must by Kosher law inspect their leafy veggies from bugs before eating them! how is that for a vegan diet?

    starjsrstarjsr2 hari yang lalu
  • I cannot even imagine the Hardwork invested into making just 3 Seconds of the Video 😳 Awesome Team DeepLook 🙏 Your Editor, Cameraman and Narrator needs an Immediate Kiss on theit cheeks 🥰😍💕

    Harshith TradersHarshith Traders2 hari yang lalu
  • So it’s plants version of bot fly

    Young StunnaYoung Stunna2 hari yang lalu
  • This is a perfect example of 'cursed by knowledge'.

    dddd2 hari yang lalu
    • That is pretty much our show.

      Deep LookDeep Look2 hari yang lalu
  • :)

    Esa K.Esa K.2 hari yang lalu
  • Turning over a new 🌿. 🥬☘️🐛

    Carmel CapricornCarmel Capricorn2 hari yang lalu
  • Oh no wonder why when i have this science experiment of full grown plants and sometimes 2 of the leaves have this Scribble Ahhhhhhh wow i learned something today

    Super Anime FanSuper Anime Fan2 hari yang lalu
  • Great content by @ Deep look ...Why this channel is underrated ?

  • Now let’s genetically evolve them to live in flesh

    Goblin PlagueGoblin Plague2 hari yang lalu
  • Me watching this at 3 am be like: I dont need sleep. I need answers!

    Genghis KhanGenghis Khan2 hari yang lalu
  • 1:22 wait so our childhood hating every vegetables because it is bitter it cause death to small insect? and it is a mechanism for self defense plant? no wonder kid hate vegetables by its bitterness

    NaveNave2 hari yang lalu
  • I never thought in a million years I would see a flys coochie. . . 🧍‍♀️

    Julian LeceiJulian Lecei2 hari yang lalu
  • Goes to show you that the salads we eat wouldn't be so tasty without these flies

    Pro BlissPro Bliss2 hari yang lalu
  • I love "Deep Look".... I just ... freaking love it.

    Pro BlissPro Bliss2 hari yang lalu
  • Leaf Miner after birth: *You know the rules, and so do i*

    Hol0gam23Hol0gam232 hari yang lalu
  • Yuck!

    hod scotthod scott2 hari yang lalu
  • Deep Look, I like how you never run out of new animals to talk about!

    Kim BrattonKim Bratton2 hari yang lalu
  • Now I know why my pepper plants always have these lines -.-" I also now know why I always see flies on my plants.

    Andres LezaAndres Leza2 hari yang lalu
  • I've seen its tunnels all over my plants and had no idea what they were?

    Sparsh ShettySparsh Shetty2 hari yang lalu
  • I always wondered what those patterns were on some of my lettuce leaves. Good thing I threw out those sections of discolored patterns or I would have eaten some of these bugs.

    Nightcore NewbieNightcore Newbie2 hari yang lalu
  • more excuse for not eating vegies 😆😆😆

    Mom of TwoMom of Two2 hari yang lalu
  • Silly Salad Scribblers!

    Feral 88Feral 882 hari yang lalu
  • "😮" my face everytime you guys upload something and the detailing you show... Hats off 🔥💯

    somu. 22somu. 222 hari yang lalu
  • Thank goodness I'm not a vegan

    Nome ArmyNome Army2 hari yang lalu
  • I always thought those squiggles were dried snail trails 🐌😱

    Kate LilloKate Lillo2 hari yang lalu
  • Is that why these plants are bitter

    SynecdocheSynecdoche2 hari yang lalu
  • nice oviposi-..err, i mean zipper...

    Chadx MChadx M2 hari yang lalu
  • Nonono they are not close to fruit flies. They are a completely different fly called veggie fly

    Mary Ann BaladiangMary Ann Baladiang2 hari yang lalu
  • Let them have the Kale

    cforce64cforce642 hari yang lalu
  • Oh wait, I actually have a few of these in with the Polyphemus caterpillars

    MepholiesMepholies2 hari yang lalu
  • m m m p r o t e i n

    MepholiesMepholies2 hari yang lalu
  • PESTS!

    AlyxAlyx2 hari yang lalu
  • What a nightmare! Disgusting!

    HahThatsWhatSheSaidHahThatsWhatSheSaid2 hari yang lalu
  • I hate these bugs. They are an epidemic on citrus trees.

    D AngusD Angus2 hari yang lalu
  • Sooo how tf they rid them?

    The viewerThe viewer2 hari yang lalu
    • Nvm😭

      The viewerThe viewer2 hari yang lalu
  • Flys are so vile ~ laying their eggs in plants people poo animals ~ ugh

    soraninjasoraninja2 hari yang lalu
  • Deep Look deserves the whole world,yes.

    matchaniematchanie2 hari yang lalu