Brittle spotted leaves...

Hemp43

Member
image.jpg Hi there, our plants are getting these strange spotted marks and turning brittle. No signs of mites. Nute deficiency?
Thanks
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You have a Calcium deficiency and the fact that the leaves are brittle says it is in an advanced stage, foliar feed a calcium/calmag supplement at 2ml/L once and feed at recommended dosage thereafter.
 
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