What could cause this symptoms on leaves?

TreeCFarmerstarted grow question 2y ago

What causes the symptoms on ERB1 like curled leaves and yellow depressed areas on leaf surface? Could be nutrient toxicity?

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Week 2

Leaves. Curl down

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ojetepelonanswered grow question 2y ago

High humidity for long periods on root zone, causing lack of oxigen, water less in quantity or frecuency till you find the sweet spot.

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