Larvae (I think!) in garden

Discussion in 'Diseases and Pests' started by Elliot Dunn, Nov 23, 2017.

  1. Elliot Dunn

    Elliot Dunn

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    Hi all, new to the site! We have a good size garden on a slight incline south facing, new build house with the turf laid by the developer in July. The turf has grown well with plenty of care and attention from myself. However at the start of the month i noticed the attached Larvae (i think thats what they are!) at the bottom of the garden right next to the house. roughly around 4 different patches.


    Having looked online it looks like Larvae and have been told to "sort" the problem out before March next year when the weather gets warmer or else the turf could be ruined. I have spoken to the developer who have said this issue comes under maintenance and not part of the 2 year warranty provided.


    The turf was laid on sand and no top soil and im guessing whatever was left by the builder in the garden has caused this issue. Any help is appreciated. Thanks :) turf 3.JPG
     

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    Elliot Dunn, Nov 23, 2017
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  2. Elliot Dunn

    LIcenter

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    WOW! Are those mealworms?
     
    LIcenter, Nov 23, 2017
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  3. Elliot Dunn

    Chuck

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    We need a close up picture of those things to be able to tell you for sure what they are.
    If they are it's time to go fishing
     
    Chuck, Nov 23, 2017
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  4. Elliot Dunn

    LIcenter

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    I'm wondering if corn meal was put down when the lawn was put in. Could that be the reason?
     
    LIcenter, Nov 23, 2017
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  5. Elliot Dunn

    Chuck

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    I use corn meal a LOT to keep fungus down and I have never seen anything even slightly resembling what the OP is showing. I have never seen anything in or on the cornmeal except weevils.
     
    Chuck, Nov 23, 2017
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  6. Elliot Dunn

    Larisa

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    Maybe this Bibionidae (larvae) ?
     
    Larisa, Nov 23, 2017
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  7. Elliot Dunn

    Chuck

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    You've got me interested. Please send close up photo and something for scale as to their size
     
    Chuck, Nov 23, 2017
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  8. Elliot Dunn

    roadrunner

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    I've looked into what Larisa said and I think she got it right....
     
    roadrunner, Nov 23, 2017
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  9. Elliot Dunn

    LIcenter

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    LIcenter, Nov 23, 2017
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  10. Elliot Dunn

    Chuck

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    I also looked it up and from what I can see these worms/larvae look more segmented than Bibionidae, more like some sort of wire worm. But what ever they are I don't think they are beneficial. I wonder if they are hard bodied or soft bodied too. @Larisa could very well be correct.
     
    Chuck, Nov 23, 2017
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  11. Elliot Dunn

    Larisa

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    Of course, it's better to see a close-up on the photo.
     
    Larisa, Nov 23, 2017
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  12. Elliot Dunn

    Chuck

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    Yep, that's them. Now before the OP's new lawn is destroyed how does one kill these things. From what I've read they love to eat lawns. Are these things classified as caterpillars? If so a soil drench of Bt might work.
     
    Chuck, Nov 23, 2017
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  13. Elliot Dunn

    Chuck

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    You were correct. How do you kill these things?
     
    Chuck, Nov 23, 2017
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  14. Elliot Dunn

    roadrunner

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    I agree, need a much better photo to determine exact species. What I found interesting is a description like here, but I'm sure other organisms may display similar behavior...:
    But more close up pictures would be good....

    https://en.wikipedia.org/wiki/Bibionidae

    Excerpt:

    "Bibionid larvae grow up in grassy areas and are herbivores and scavengers feeding on dead vegetation or living plant roots. Some species are found in compost.[9] Larvae are sometimes found in pockets in which sometimes up to 200 specimens have been counted."
     
    roadrunner, Nov 23, 2017
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  15. Elliot Dunn

    Chuck

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    The only one I have seen here in Texas is in my compost pile and it is the Soldier Fly larvae.
    https://www.gardeningknowhow.com/composting/basics/soldier-flies-in-compost.htm
     
    Chuck, Nov 23, 2017
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  16. Elliot Dunn

    Beverly

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    dsc_1252.jpg
    From google images
     
    Beverly, Nov 23, 2017
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  17. Elliot Dunn

    Larisa

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    Watering the soil with a 0.1% solution of chlorophos (an organophosphorus compound that is used as a means of controlling insects.)
    The active substance is dimethyl.
    The flow rate of the liquid is 0.5 liters per 1 m2.
    Also a weak solution is potassium permanganate. But this is a weaker action.
     
    Larisa, Nov 23, 2017
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  18. Elliot Dunn

    Chuck

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    Very nasty stuff. It was sold in the US under the name of Lorsban and Dursban but was banned in 1996.
     
    Chuck, Nov 23, 2017
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  19. Elliot Dunn

    Larisa

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    I've heard about it, but it's being sold here. Often it is a powder or a spray without a smell. I can not say that I use it actively. But when other means are powerless, I buy it.
     
    Larisa, Nov 23, 2017
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  20. Elliot Dunn

    Chuck

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    The ban was later reversed and both are available again.
     
    Chuck, Nov 23, 2017
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