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Thread: Name the deficiency guys

  1. #1

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    Default Name the deficiency guys

    Alright everyone hope you're enjoying lockdown.... Had a slight deficiency all the way through with these plants getting worse now in flower, on week 3. I'm thinking calcium but not 100% tbh. I'm using advance nutrients with RO water, apparently no extra calmag needed with advance nutrients but maybe they do need a boost in flower?

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  3. #2

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    You know everything about your grow... we know nothing... you need to tell us mate
    "The purpose of our lives is to be happy."
    (Dalai Lama)

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    Spider mites?

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    Quote Originally Posted by gardro View Post
    Spider mites?
    That was my first thought


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  9. #5

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    That's mites.
    I know a girl who thinks of ghosts,
    She'll make ya breakfast, she'll make ya toast,
    But she don't use butter, and she don't use cheese,
    She don't use jelly, or any of these,
    She uses Vaseline.

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  11. #6

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    Sorry lads was being a bit lazy. It's a fully climate controlled room apart from co2 I just have a 10" fan with carbon filter on 25% just to keep smell down and replace stale air with fresh air.

    The groom...
    16 quantum boards
    8 plants
    4 pot DIY rdwc system x2 (8 pots in total) completely separate to each other with their own cooler.

    I work off vpd so humidity is controlled by what ever temps are. I'm slowly increasing vpd each week to lower humidity now the lady's are flowering.

    I keep room temps at 23oC lights off 28.5oC lights on. The room is air conditioned so I can have my temps whatever I like. I have room temps at 28.5oC then that gives me a leaf temperature of around 26oC (just about idea for led lights) thought I might add anyone that tells you a proper air conditioner is expensive to run obviously never used a proper one. I paid £500 for it brand new 12000 btu installed myself because it was a easy fit one. I use 2 smart air conditioner controllers one for heat one for cool. lights off I have it set to heat the room from 23oC and lights on its set to cool from 28.5oC same days it won't even cost 50p to run...

    Water temps 18oC

    Nutes...
    Advance nutrients used in veg was just grow A&b

    I also use TNC mycorrhydro

    Flower nutes are... Advance nutrients bloom A&B, big bug, rhino skin and overdrive for last 2 weeks.

    I've took some better pictures of the leaves I was taking them under the leds so you can't see the rust spots on the leaves. Definitely no mite but they have got a few thrips on them but these are definitely rust spots hopefully will be a little clearer now.



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  13. #7

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    Also forgot food levels. I use a ppm meter so if it drops I give them more if it rises I give them less simple really lol

    Ph, I don't ph because with advance you don't use ph meter, but old time habits I do check sometimes and it's normally anything from 5.5 to 6

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    It's still mites.

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    Spider mites 100%

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    But it's a much, MUCH bigger problem than I first thought.

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    You need to get a Loupe to check the under side of the leaves. The spots are probably from where the mites & thrips have eaten the leaf and it's now dead in the little spots.

    I've personally only been able to clear pest by using systemic miticides or scrapping my plants and starting fresh. You have a few choices while in flower, but not many that will 100% work.

    Your plants look pretty good apart from the bugs...

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  23. #12

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    Trust me lads it's not mite I've had mite plenty of times over the last 15 years to know what I'm looking for lol

    I managed to find a more advanced/worse leaf in the middle of the plant.

    This is what I use for mite in the photo not had mite for a few years but keep this stuff on side by because it kills them in one sitting!

    There is only a very small number of thrips I had to check a few leaves just to find the one in the photo. They've been introduced to the groom just over a month ago from a cut of lpz I got

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    Quote Originally Posted by thegrower1 View Post
    Trust me lads it's not mite I've had mite plenty of times over the last 15 years to know what I'm looking for lol

    I managed to find a more advanced/worse leaf in the middle of the plant.

    This is what I use for mite in the photo not had mite for a few years but keep this stuff on side by because it kills them in one sitting!

    There is only a very small number of thrips I had to check a few leaves just to find the one in the photo. They've been introduced to the groom just over a month ago from a cut of lpz I got

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    That does look a little like an early phosphorus deficiency, and the white spots are very similar to mites, but as you have found thrips, that explains the damage/white spots somewhat. The floramite shouldn't be used in flower, it may find itself in the finished product, but thrips are an arse to kill, maybe predators would be an option?

    A cause of phosphorus deficiency can be pH problems in the root zone, I would keep a closer eye on your rez numbers. Water temps should be around 19-21°c pH should be 5.6 - 6.2, maybe sample the numbers more often to watch for any drastic swings.

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  27. #14

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    Quote Originally Posted by Loki View Post
    That does look a little like an early phosphorus deficiency, and the white spots are very similar to mites, but as you have found thrips, that explains the damage/white spots somewhat. The floramite shouldn't be used in flower, it may find itself in the finished product, but thrips are an arse to kill, maybe predators would be an option?

    A cause of phosphorus deficiency can be pH problems in the root zone, I would keep a closer eye on your rez numbers. Water temps should be around 19-21°c pH should be 5.6 - 6.2, maybe sample the numbers more often to watch for any drastic swings.
    I had thrips many years ago I went to b&q and brought a spray for tomatoe plants I think it was that kills thrips and other bugs killed them in one go, but can't go b&q at the moment so they'll have to live for now lol

    I'm thinking about using a different nutrient line next cycle this is my first cycle I've done with RO water (my calcium and magnesium ratio is wrong in my tap water) I did have a slight deficiency in veg as well so might try a different nute line in one system and do a side by side to advance see what happens

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  29. Default

    Quote Originally Posted by Loki View Post
    That does look a little like an early phosphorus deficiency, and the white spots are very similar to mites, but as you have found thrips, that explains the damage/white spots somewhat. The floramite shouldn't be used in flower, it may find itself in the finished product, but thrips are an arse to kill, maybe predators would be an option?

    A cause of phosphorus deficiency can be pH problems in the root zone, I would keep a closer eye on your rez numbers. Water temps should be around 19-21°c pH should be 5.6 - 6.2, maybe sample the numbers more often to watch for any drastic swings.
    I'd definitely be giving Predator mites a go


    You can use ' Phytoseiulus persimilis ' or ' Amblyseius californicus ' (even better if you have both) they will hunt and eat them.

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  31. #16

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    I've search Google and can't find any similar phosphorus deficiency to mine but the calcium one looks identical to mine? It looks like phosphorus starts from the edges of the leaves calcium starts from the veins and is rusty like mine. I do have canna calcium but I don't want to just add something for no reason

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  33. #17

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    I'm not convinced with a side by side tho

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    Found these old picture.

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  37. #19

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    With pests, once you're in flower the best you can do is to control them, try getting some Chrysanthemum plants (in flower) and mix them in with your grow. They have a natural chemical that can kill and will repel things like thrips and mites.

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  39. #20

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    It remembers me a time, when I've tried Super Silver Haze strain for the first time ( ordered it here
    and it was the only store I've found it. And tried to grow it by myself, with all the led lights and needed micro-climate for it. And those issues were as well, exactly like you have on your photos.
    Please check the rules mate, I’ve removed the link for you this time.
    Last edited by redisiel; 20-04-20 at 10:44 PM. Reason: No links

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