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What is this rust discoloration on leaves, and how can I stop it?
promostarted grow question 3 years ago
Does anyone happen to know what is causing this rust colored discoloration on fan leaves? It starts on bottom leaves, and moves up. Also seeing yellowing on leaves, and not sure if its pest issue, light issue, deficiency, or watering concern. Super nervous plants are dyingš
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JUNGLE_B4RNSanswered grow question 3 years ago
Proper Calcium deficiency due to an excessive amount of ammonium, potassium, magnesium and/or sodium in the root environment. The absorption is curbed mostly by ammonium and least by sodium. It can also be a problem with the evaporation caused by an excessively high EC value of the soil, check the EC of the drain to make sure.
LostWorldGeneticsanswered grow question 3 years ago
Hi mate, i agree @B4RNS, according to your Ec, it looks like nutes deficiency (Ca and N), increase your Ec to 1 ms/cm, after a few days, everything will be fixed.
Test the run off Ec, it should be lower or equal to what you give. If greater, juster water with no nutes (but the good PH)
Take care
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Hashyanswered grow question 3 years ago
Hi I see your using remo nutes and there cal mag supplement. If your overall Ec is at 0.6 like your diary says I would increase the strength of the next feed. Also keep an eye on ph. Remember to get run off so you don't get salt build up in the soil. I don't tend to feed with every watering in soil I alternate. Always let the soil dry before watering.
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