rkcz
Member
Unfortunately, I am solving the problem for the third round. As can be seen in the photos, the leaf begins to turn yellow from the edges and then dry from the edges. I use a complete series of canna fertilizers (canna hydro, rhizotonic, cannazyme, canna boost), but I have never had a problem. Water from a reverse osmosis unit. I thought it was a calcium deficiency or magnesium, so I started using a calmag agent from canna, but the problem is the same. I measure the room temperature, ph and ec of the solution. All right. I have already changed the whole brand of fertilizers, but the problem is the same. I grow from clones, but I've already changed my supplier. The problem is still there. Is it a pest or insect problem? Thank you very much in advance for saving my crop! Don't be afraid to ask me anything, I will add information. I also found some information, that it could be overwatering, but I use same schedule for some years with no problem. :-/
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