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

6 Apr 2021
203 140 Aufrufe

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 LookVor 10 Tage
    • Anything on how to get rid of them? They ruin all of my plants every year.

      Vesta AshVesta AshVor 3 Tage
    • Grossmazing

      world Peaceworld PeaceVor 6 Tage
    • Yas

      Merecca Claire VillariñaMerecca Claire VillariñaVor 7 Tage
    • I'm sick i know it's insect?!!!!!!

      Merecca Claire VillariñaMerecca Claire VillariñaVor 7 Tage

      Pristine Wen Swen CheePristine Wen Swen CheeVor 7 Tage
  • Oh this is good knowledge 👏 mystery solved. I've alwaysed wondered why some leaves looked like that

    Epytome ProductionzEpytome ProductionzVor 18 Stunden
  • Thanks for your usedful video! 💕💞 I love u, Deep Look Team 🙏 From Cambodia

    Seang DarothSeang DarothVor Tag
  • "It's a larvae--" Me already for some reason: *Kill it.*

    Franz DingalanFranz DingalanVor Tag
  • *LEAF:* _"There's something inside me that pulls beneath the surface consuming, confusing."_ *It's like!* _"Discomfort, endlessly has pulled itself upon me."_ It's so distracting & I'm even reacting! What I'm saying is... IS! BUGS ARE *"🗣🎶 CRAWLING IN MY SKIN! THE WOUNDS WILL NEVER HEAL!"* 🎤😩

    Light YagamiLight YagamiVor Tag
  • Why do insects have to make things weird lol

    C RC RVor Tag
  • Deep Look, can you do a video about the triglidae? it’s a type of fish that walks on the Sea Floor. I’m curious to know more about them.

    lala duh ༄lala duh ༄Vor Tag
  • The narrators voice sounds like my bio professor from high school...

    Christopher TadeoChristopher TadeoVor 2 Tage
  • Back to the mines❌ Back to the leaves✅

    Jay OMFGJay OMFGVor 2 Tage
  • Which camera and lenses used to make this video ??

    Waqas Saddique EverythingWaqas Saddique EverythingVor 2 Tage
    • Hi Waqas Saddique Everything! I produced this episode of Deep Look. Our series cinematographer, Josh Cassidy, films with a Panasonic GH5s camera outfitted with Canon 100mm and 65mm lenses. Josh recently answered viewers' questions about how he films Deep Look here: www.patreon.com/posts/q-deep-looks-47722639 The shots of the fly digging into the leaf and tasting the sap were filmed by University of California, Berkeley, doctoral candidate Julianne Peláez. Thanks for watching! -Gabriela

      Gabriela QuirosGabriela QuirosVor Tag
  • Ovapositor is my new favorite word...I’ve been thinking about it almost daily since watching this video and others lol

    Karla VegaKarla VegaVor 3 Tage
  • Hi just love your content! can you also make a video of a pink underwing moth? curious to know more.....

  • THATS IT THATS WHATS BEEN LEAVING THOSE MARKS ON THE PLANTS IN MY BACKYARD I haven’t been able to identify them for so long - they’ve mostly just been on weeds but one or two have shown on up on plants I tend to. Did not expect to figure out what those were here. Thank you, though

    AnnAnnVor 4 Tage
  • Not in front of my salad.

    Prism SagePrism SageVor 4 Tage
  • This is so disgusting I love it

    Jayy-B. van VaniteJayy-B. van VaniteVor 4 Tage
  • Dang her voice is so relaxing that it made me fall asleep lol

    Johnlay RealmJohnlay RealmVor 4 Tage
  • Every body gangsta until the larva start mining human skin

    Ok manOk manVor 4 Tage
  • I hate, no make it despise, these things!

    TTBTTTBTVor 4 Tage
  • Awesome animals..

    MY MAPMY MAPVor 5 Tage
  • 2:10 this is nightmare fuel

    FilbieTronFilbieTronVor 5 Tage
  • I’m a big health freak- But why did I watch this?

    Michelle GongMichelle GongVor 5 Tage
  • A fly with crunching miss v

    Robby CahyadiRobby CahyadiVor 5 Tage
  • I remember the movie "Teeth" after watching this.

    manja lovemanja loveVor 6 Tage
  • Imagine one of those under your skin! Eww!

    CharaCharaVor 6 Tage
  • Ovipositor......

    BJ AlexBJ AlexVor 6 Tage
  • Me is about to make a juicy sandwich Me:clicks dis vid. Also me:Noise at first Me after Me:Uhh I am not gonna make a juicy sandwich again.... Me later:*makes sandwich anyways* me mmm yum! Me goes outside and sees dis white line on leaf:Look what's dis? Also me:*remembers* O H N O... Directed by Leaf miner fly.... Illustration by leaf miner fly M E D E D B A I

    Azaria DecanAzaria DecanVor 6 Tage
  • I hate insects more than anything in this world. Iam a known and active insect serial klr. That's not true. I only kill ants, poisonous insects flies and stinging insects. Just stuff that can hurt children and the elderly. I like butterfrees.

    J-TVJ-TVVor 6 Tage
  • God this little guy is so cool 😎

    flat Mars societyflat Mars societyVor 6 Tage
  • Amazing invisible world. (Sat 10 Apr 2021 21h42)

    Different SaturnerDifferent SaturnerVor 6 Tage
  • the leaf dram

    4004 intel4004 intelVor 6 Tage
  • Who is here from the shorts?

    hamster culthamster cultVor 6 Tage
  • Good thing I don't eat vegetables

    Dubbel FruitDubbel FruitVor 6 Tage
  • These lines always appear on our plants called "Pechay". *Jesus Christ, Does this mean I ate dead baby flies without even knowing?*

    Ŕęđ ĢêmŔęđ ĢêmVor 6 Tage
  • everybody gangsta until u realise everything we eat has bugs in it

    ZENITSU 'ZENITSU 'Vor 6 Tage
  • why am i watching this after i just had a salad 👁👄👁

    Ronan AustinRonan AustinVor 6 Tage
  • Dang, I'm so uncomfortable due to my phobia but I can't stop watching ;-;

    OverOreoOverOreoVor 6 Tage
  • that flies cuchie got teeth lol

    CXI.AnimusCXI.AnimusVor 7 Tage
  • 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.

    SimplyOrange537SimplyOrange537Vor 7 Tage
  • Me tryin to eat salad Hol up wait a minute I said vegeterian salad no meat my guy

    Adrian FuentesAdrian FuentesVor 7 Tage
  • You hear skeleton noises: panik It is spooktober: kalm It is spooktober!: doot

    Ewan McKinlayEwan McKinlayVor 7 Tage
  • 2:03 oh no r34 artists incoming

    Kek LeoneKek LeoneVor 7 Tage
  • Public health officials are working on a vaccine (for the fly)

    Brad ABrad AVor 7 Tage
  • OMG😱

    Merecca Claire VillariñaMerecca Claire VillariñaVor 7 Tage
  • Metal screetch

    Raxanee and nala the kittyRaxanee and nala the kittyVor 7 Tage
  • these are addicting

    michellemichelleVor 7 Tage
  • "Jokes for you I'm into that"

    Ghivi FahmiGhivi FahmiVor 7 Tage
  • So basically salads are not for vegetarians?

    A HA HVor 7 Tage
  • I'm gonna need me one of those flies...

    LyzksLyzksVor 7 Tage
  • Really dumbfounding...............

    Sheikh Nazim AzizSheikh Nazim AzizVor 7 Tage
  • That fly be rubbing its hands together like it hit the jackpot.

    Antix taktixAntix taktixVor 7 Tage
  • Huh when I was younger I thought plants had those trails from snail slime now I know and it's more horrifying 😱

    picachufan2000picachufan2000Vor 7 Tage
  • Nice 👌

    Amit dasAmit dasVor 7 Tage
  • Title about scribbling. Barely any pictures of the art they make. Horrible

    Derek WattDerek WattVor 7 Tage
  • Oh my gosh! I saw the first part of this video, and I was like- “EWWWW” Love your content btw! It’s very interesting! :)

    xMoonxxMoonxVor 7 Tage
  • I love her voice!

    MazequaxMazequaxVor 7 Tage
  • Thank you for providing such insightful videos and all the information you add to your description!!

    Elise GaffgaElise GaffgaVor 7 Tage
  • ❤️❤️❤️

    Elise GaffgaElise GaffgaVor 7 Tage
  • Nutritious salad

    Chris GonzalezChris GonzalezVor 7 Tage
  • Great. Now I'm never going to look at salad the same. 😭

    ItsQueen BabiiItsQueen BabiiVor 7 Tage
  • 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 KahnVor 7 Tage
  • The way she spread her ovipositor did something to me.

    Extra DipExtra DipVor 7 Tage

    Pristine Wen Swen CheePristine Wen Swen CheeVor 7 Tage
  • ._.XD

    SlorpSlorpVor 7 Tage
  • Whelp.. that ovipositor will be in my nightmares.

    m0rthausm0rthausVor 7 Tage
  • The photographer should get a raise

    uabiruabirVor 7 Tage
  • Is that what those markings were?? I was also so puzzled why my plants were all tatted up sometimes.

    ToastymuffintopToastymuffintopVor 7 Tage
  • i thought i was open minded enough to appreciate all parts of nature.. idk bout that atm 😅

    Riana MarcelinoRiana MarcelinoVor 7 Tage
  • all the vegans.. “Future Human Flies”

    sahangbaknei Guitesahangbaknei GuiteVor 8 Tage
  • Iew

    J MidJ MidVor 8 Tage
  • And vegans think that only animal matter is infested. Not to mention plants have a layer of skin called the epidermis too.

    FluorescentLightBeautyFluorescentLightBeautyVor 8 Tage
  • 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 LiebhartVor 8 Tage
  • I Will eat this no more. Just meat.

    KarpenoKarpenoVor 8 Tage
  • Hey, it's free protein.

    RoseKindredRoseKindredVor 8 Tage
  • I don’t really care, it’s just extra protein 😄

    RanMind YTRanMind YTVor 8 Tage
  • Fly larva be like: *Mining away*

    Eggscapius Robloxius LudusEggscapius Robloxius LudusVor 8 Tage
  • 500’th comment Ik nobody cares but keep up the good work, deep look.

    Fancy PhantFancy PhantVor 8 Tage
  • This is why I hate salad

    Yusuf SennaYusuf SennaVor 8 Tage
  • 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.

    AnimeShinigami13AnimeShinigami13Vor 8 Tage
  • Vegans cant eat grass now

    001 0001 0Vor 8 Tage
  • I was just eating salad.. what have I done to myself..

    sickening_lovesickening_loveVor 8 Tage
  • I've gained a new appreciation for Deep Look after spending so much time in the garden during the quarantine.

    qeueu qeuqeueu qeuVor 8 Tage
  • Idk why this makes me want to start itching.

    COACCOACVor 8 Tage
  • Tell that do the vegans not us

    4Haan4HaanVor 8 Tage
  • Leaf miners are so annoying

    Eros 530Eros 530Vor 8 Tage
  • 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 ManVor 8 Tage
  • I mounted two Liriomyza trifolii adults on entomological pins for my tropical insect pests class, it wasn't easy.

    Wolframium TungstenWolframium TungstenVor 8 Tage
  • Master of muscle control.

    Richard RahlRichard RahlVor 8 Tage
  • Mmmmmm......those are my favorite greens too. These little guys have good taste.

    Bob CharlieBob CharlieVor 8 Tage
  • Soooo interesting! Thank you Deep Look for expanding our world

    Murilo Cardoso de OliveiraMurilo Cardoso de OliveiraVor 8 Tage
  • for some reason I'd always assumed these patterns on plants were from snails

    A129A129Vor 8 Tage
  • 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?

    starjsrstarjsrVor 8 Tage
  • 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 TradersVor 8 Tage
  • So it’s plants version of bot fly

    Young StunnaYoung StunnaVor 8 Tage
  • This is a perfect example of 'cursed by knowledge'.

    ddddVor 8 Tage
    • That is pretty much our show.

      Deep LookDeep LookVor 8 Tage
  • :)

    Esa K.Esa K.Vor 8 Tage
  • Turning over a new 🌿. 🥬☘️🐛

    Carmel CapricornCarmel CapricornVor 8 Tage
  • 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 FanVor 8 Tage
  • Great content by @ Deep look ...Why this channel is underrated ?

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

    Goblin PlagueGoblin PlagueVor 8 Tage
  • Me watching this at 3 am be like: I dont need sleep. I need answers!

    Genghis KhanGenghis KhanVor 8 Tage