Is this a cal-mag problem ?

  • Is this a cal-mag problem ?

    Posted by rick-from-sunnyvale on November 22, 2024 at 1:03 pm

    Ethos Pineapple Runtz auto seeds.

    75% coco, 20% perlite, 5% worm castings in real growers drip buckets.

    Grow dots and recharge for nutrients.

    ph is 6.0-6-3

    Tents is 68-73 degrees between day and night temps humidity is 45%

    the plants have gotten too tall are closer to the light than I would like. Im about two weeks from harvest.

    I started seeing spots on lower leaves a couple of weeks ago and started adding cal-mag to the water, 1.25 ml per galllon half of the recommended strength.

    now they’re looking worse in the past couple of days.

    What am I missing or doing wrong?

    rick-from-sunnyvale replied 4 weeks ago 4 Members · 8 Replies
  • 8 Replies
  • ohigrow

    Member
    November 22, 2024 at 1:33 pm
    DGC Producer

    IDK if all cal-mags are the same but when I have to use mine it’s in the 4-8ml/gal range. When I grew the zkitlles autos it was a constant battle, they got 4-5ml/gal every watering once they started flowering. This was a mag deficiency, I worried about the extra calcium but never noticed any negative effects.

    • rick-from-sunnyvale

      Member
      November 22, 2024 at 3:00 pm
      Free Membership

      Thank you. I’m still learning and haven’t had a plant look like this in the later stages.

  • jmystro

    Moderator
    November 22, 2024 at 2:19 pm
    AdministratorFree MembershipDGC Executive Producer

    The plants are supposed to consume themselves during ripening and drop their fan leaves. This is normal. Calcium and magnesium are two different elements with completely different deficiency symptoms. The leaves are not showing an issue with either but are showing necrotic damage that’s random possibly from over-watering. they will not drink as much near the end of their life. I would just give them water the last few weeks. They’re not supposed to be completely green at harvest.

    • rick-from-sunnyvale

      Member
      November 22, 2024 at 2:57 pm
      Free Membership

      Thank you for your reply.

      I’m using the real growers drip bucket system and watering once a week with recharge. They get a half gallon of recharge mix. Should I reduce the recharge?

      • jmystro

        Moderator
        November 22, 2024 at 3:57 pm
        AdministratorFree MembershipDGC Executive Producer

        You can cut out Recharge about halfway through flower.

        • rick-from-sunnyvale

          Member
          November 22, 2024 at 6:10 pm
          Free Membership

          Thanks. I planned to stop for the last week. I’ll stick to just water until I harvest.

  • simeon

    Member
    November 22, 2024 at 2:45 pm
    Free MembershipDGC Producer

    Every plant senescence is different. I’ve had several cultivars that just faded to light green and yellow. It’s easy to misjudge this as a deficiency especially when you see so many pictures of plants turning shades of pink, purple, red, orange and so on. I’d say ease up on watering and cut the calmag like as mentioned above

    • rick-from-sunnyvale

      Member
      November 22, 2024 at 2:58 pm
      Free Membership

      Thank you. I have seen pictures of plants fading but the brown spots had me concerned something was wrong right at the end.

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