White marks on leaf

Discussion in 'Plant Problems' started by Rockreactor, Jul 4, 2017.

  1. Rockreactor

    Rockreactor Registered

    Hello ! I am growing just one plant for fun actually. Right now the plant is like 2 weeks old but started to get some strange marks on every leaf as seen in the images.

    I do not believe i am overwatering it. I have the plant outside and the temperature is about 30-40c degrees lately. Could the heat be the problem ?

    Thank you in advance.

    PS. Only 1 or 2 hours a day the sun is hitting the plant.

    Attached Files:

  2. gardenermendo

    gardenermendo Registered+

    When you grow outdoors, you're at the mercy of bugs who decide to invade your plants.
    The pattern looks like they're thrips. They have wings, so they can fly away and you might not see them. If you do see them, they're really tiny and kind of look like a white fly. The other guess, would be mites. But I would expect a more consisted dotted pattern with mites. If they are mites, you can't see them with the naked eye, you'll need to get an illuminated hand held microscope to inspect the back of one leaf.

    Why so little dirt in the cup? Time to get it transplanted to a larger pot with more soil.
    Last edited: Jul 6, 2017
  3. Rockreactor

    Rockreactor Registered

    I am writing again on the same thread.
    I transplanted to larger pot . The plant has grown since my first post but i still have the same problem. I used some home remedies for insects (green soap + garlic + alcohol) but it looks that this didnt help.
    I inspect almost daily the plant but i cannot see anything flying on it or any other kind of insect. Still i see new leafs after a few days again with the same marks.
    Any further ideas of what i could try ?



  4. RUJU

    RUJU Registered+

    Hi Rockreactor,

    You definitely have a pest problem (thrips I believe). Take a look at this site http://www.growweedeasy.com/cannabis-thrips & follow instructions. I use this site and have found it easy to navigate as well as provides a simple answer to many pest related problems. Or you could ask some of the more experienced growers on this site. I hope this helps & best of luck!
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