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Brown spots on leaves
electabruce420started grow question 3y ago
What could be the cause of those brown spots ? pH has been over 7 because of organics fertilizers, could that be it ?
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GrowingGrannieanswered grow question 3y ago
A pH over 7 is not good at all.... what you're seeing is a calcium deficiency which was probably caused by the pH problems BUT I notice that you've also said something about giving them more P & N? You don't indicate what nutes you're giving or the amounts but a nitrogen toxicity will also cause a calcium deficiency. Plants in flower need less nitrogen that they need in veg so don't over do that nutrient... Add some calmag and definitely keep the pH down between 6.0 and 6.5.
Good luck....
tataceanswered grow question 3y ago
Hello, the color of your leaves seems very pale. I advise you to give more nitrogen to the girls. However usually those dots are caused by a lack of calcium or magnesium which could in turn be caused by an incorrect pH, carefully check the pH of the water that comes out of the bottom of the vase.
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