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Thread: White spots on fan-leaves, early veg stage

  1. 21-07-20, 09:18 AM #1
    got_milk
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    Exclamation White spots on fan-leaves, early veg stage

    Hi once more Guys.

    This is a phenomena my friend is experiencing, he started with his first grow after being inspired by my newfound hobby.

    Strain: Northern Lights Auto
    Grow medium: Coco with ~20% perlite
    Light : Started them indoor under a set of LED reflector ( probably insufficient ) Put outdoors in week 3
    Pot size: 4.2gal / 16l plastic
    Nutrient type and schedule : tap water

    This is the only plant out of 6 that has any kind of apparent issue, there are white spots all over the fan leaves - could anyone tell whether this is a nutrient/ph or insect problem ?

    Click image for larger version.  Name: johnny.jpg  Views: 37  Size: 135.6 KB  ID: 385942
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  3. 21-07-20, 10:13 AM #2
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    Jingo
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    I can't really tell from the picture, but white spots on young vegging plants are usually powdery mildew. If it's powdery mildew it usually wipes off quite easy with your thumb and then it'll leave little pinpricks through the leaf underneath where the mildew was. The cure is more airflow and dryer weather or you can also do folair applications of neem oil.



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  5. 21-07-20, 04:05 PM #3
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    Ive sprayed water and hydrogen peroxide mix on my celery plant when it had PM.

    It was outddors and i didnt give a single fawk but the celery. Its still alive and no PM since then. It happened cuz i watered at night. I never water after 2pm now. Earlier is better.

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  7. 21-07-20, 04:32 PM #4
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    Quote Originally Posted by Shreder View Post
    Ive sprayed water and hydrogen peroxide mix on my celery plant when it had PM.

    It was outddors and i didnt give a single fawk but the celery. Its still alive and no PM since then. It happened cuz i watered at night. I never water after 2pm now. Earlier is better.

    Current grow

    https://www.thctalk.com/cannabis-for...-Covid-19-Grow
    It's interesting the way things are so different between us just because of the outdoor humidity, my outdoor humidity is about 10% and I usually water my vegetable gardens in the middle of the night. It's real common for me to water from midnight to 2:00 a.m. and then shut things down.



    J

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  9. 21-07-20, 05:26 PM #5
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    Quote Originally Posted by jingo View Post
    It's interesting the way things are so different between us just because of the outdoor humidity, my outdoor humidity is about 10% and I usually water my vegetable gardens in the middle of the night. It's real common for me to water from midnight to 2:00 a.m. and then shut things down.



    J

    Woha if i do that im gona get fuckin pest fest

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    GEORGE (21-07-20)
« Please help with fungus gnat and Leaf Septoria. Very early stages | First Grow - Help Needed in Identifying Problem(s) - Possible P/K Deficency? »

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