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plants suffering - all of them

Discussion in 'Plants' started by Jaromir, Sep 15, 2014.

  1. Jaromir

    Jaromir New Member

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    We have a relatively young AP system - a few months old (700l FT - two GB 1:1 ratio. . one flood&drain and the other GB is a constant flood)


    When I was on holidays the Oase BioPress pressure filter broke down (thanks to Murphy's Law - yes. . I didn't had a backup pump ready)

    My friend couldn't get the system up and running again > watered the plants "by hand". . with water from the FT (did their best. . I know it is me to blame).

    The air pump was still operating - all fish survived (so far)


    But the plants don't look healthy - there is a plant disease spreading. First the leaf has some white/yellow or brownish parts. . second lots of small black dots appear. To shoot in the dark - downy mildew?!

    The fans were out of order as well > up and running again.

    I have removed the "infected" leafs from the plants. . but took some pics before > I am very happy for any advice on this. .



    Thank you very much for your brainpower and time
    Jaromir
     

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  2. Yabbies4me

    Yabbies4me Administrator Staff Member

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    The plants in some of the pics do look as though they may have a powdery mildew. The best you could do is remove the worst affected plants and the affected leaves from others, as you've done, and ensure good airflow through the growing area to keep humidity down. You could also spray the plants with Potassium bicarbonate, Potassium silicate (such as Budlink) or try a 1:9 milk and water solution.

    Have you checked the plants thoroughly for any insects as well?... some of the leaves look as though they may also have mite damage or similar.
     
  3. Jaromir

    Jaromir New Member

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    Hey Yabbies,

    Thanks a lot for your fast respond. You had a closer look at the pics. . you are right - someone did eat a bit of the leafs of our Paprika. But it grew outside and due to the weather we decided to take it indoors > it happen outside in the "dirt" garden not in the AP system.

    I have checked for insect/pest and couldn't find any evidence. We did had a problem with aphids about two month ago - ordered some ladybug larva from Biocontrol in Andermatt > we could tackle the problem with their help.


    Are you sure it is powdery mildew? For me it looks very much like downy mildew - even thought I am nae expert.

    The white stuff doesn't come off/washes away. . it is more transparent/absence of Chlorophyll and the small black dots aren't common for powdery mildew, init?

    Here an other picture from an affected salad leaf

    IMG_3877.JPG
     
  4. Johannes Lim

    Johannes Lim New Member

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  5. Murray

    Murray Site Admin Staff Member

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    This is a very old post. The leaf sure does look sad.
    We should never forget that the primary input for any system is the fish food.
     
  6. Jaromir

    Jaromir New Member

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    forgot about this post. but hey.. why not share some good news too! the plants are much more healthy - check out the pics. they were suffering from pest (mostly Thrips), we looked into IPM, increased the air flow, keep removing the worst affected leaves, imported some beneficial bugs every now and then and used Murray's Molasses spray from time to time. seems to work! Thank everyone for the good advices - especially Yabbies4me :)
     

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