my thread. no drama here.

GreatwhiteNorth

Global Moderator
Staff member
Again, I'm an organic guy & not really good at diagnosing def problems but I'll give it a swing.
Does the yellowing extend on down into older growth or is it strictly in the tops?
Yellowing all over = N def.
Yellowing tops only = cal def.
Yellowing tops w/ dark green leaf veins = iron def.
 
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