8 week old Banana Purple Punch growing in 5 gallon container with half and half FF Happy Frog and FF Ocean Forest. Feeding weekly with 1/4 dose of FF Tiger Bloom, FF Big Bloom plus 1 teaspoon per gallon of FF cal/mag. As pictures show most of plant is looking healthy with exception of a few leaves with small brown spots and lighter color leaves. What do you think is going on and how to fix?
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Welcome to the forum! Not bad work so far. My guess is lockout from overfeeding. FF OF is known to be “hot” nutrient dense soil. That plus the additional nutes might have overloaded a couple things.
What type of water and, if you have been adjusting it, what pH have you been irrigating with? Tap, distilled, RO, well water, etc…
You’re getting close to the end. Probably pull off a decent harvest but it might not look pretty.
Nute lockout chart:
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Using tap water that I let set for a few days to remove chlorine. I keep my ph between 6 & 6.8. Last watering runoff was 6.5. No nudes until 4th week added 1/4 strength FF grow big and only FF Tiger Bloom once a week at 1/4 strength. Should I reduce nutrients or cut out all together?
Thanks for reply
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Hey bud, is this a powdery film you got on the leaves? If so, looks like the onset of powdery mildew. How’s your airflow? Both in the tent and exhaust? Rh? Those leaves look a little rough. I’d stick with what you’re feeding, it’s what I use, good stuff. At 8 wks some strains are fast and in 5 gal pot could be the start of senescence. You’re doing good so far.
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Are you not using big bloom in the 3part soil trio? It’s as necessary as grow big or tiger bloom and you use it all the way thru at different ratios with either
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Also a tidy tent is a healthy tent. Who knows what kind of spores and bacteria can get stuck in old corners. I literally take apart every fan and clean every surface inside of the tent after every grow. Having a perfect environment for plants is also a perfect environment for anything else alive that gets inside . Good luck, hope you get some good smoke!
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I mixed some baking soda with water to rise the ph from below 6 back into proper range. It leaves a whiteish residue on the leaves along with big boom.
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Yes I use big bloom after the first week.
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Spraying the plants this late in flower can cause all sorts of issues, bud rot being the biggest that comes to mind. Any reason you are tying to raise the pH on your leaves?
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Yes I’ve neglected to clean the tent for a while. Will get to it next watering.
Thanks
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She’s got some pretty buds on her! Hows the smell? Anything special yet?
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I’ve found that FF nutes lowers the ph after a while. I water and feed at 6.8 but it tends to grow below 6 so I added the baking soda to regular water to bring it back up between 6-7.
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She’s definitely smelling up the place. I’ve been growing this strain for a while and other than the spots this is the best grow yet. Got rid of my junk china grow light and bought a VIVOSUN and wow did that make a difference! It has its own fan plus I have an exhaust fan as well.
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Id like to know more about your environment. Id also like to hear more about the powder looking substance @KingRatt brought up. Are you still spraying the plant with something at this stage and if not when is the last time you did?
Whats your temps, humidity, airflow, and light intensity?
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Didn’t spray it just added baking soda to regular watering.
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How is the white powder getting on the leaves?
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If I knew your parameters it would be easier to know for sure.
I think you have a wet environment and a nitrogen toxicity. That white substance looks a lot like powdery mildew. Theres rust in the bottom of your tent. The plants signs point to N tox which will create a lockout of calcium and potassium. The high rh% will also limit the plants ability to transpire which causes local lockouts of cal and mag. High rh% weirdly enough also limits the plants ability to cool itself.
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Tent is dry but I admit it’s in need of a cleaning. White substance on leaves is from baking soda residue from a regular watering (not spraying) to raise the ph from below 6 to within 6-7. So I try to keep ph in proper range.
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