Hi - couldn't say but could it just be nature doing its thing? My tree is also losing its leaves and they are not all green and lovely - olives are picked so I guess the tree is going into its winter mode.
Its just the rate of it is rather daunting. Also I've noticed that while the leaves at the end of branches are healthier - the leaves closer to the trunk are falling off, and it the process moves out... which is scary
Posts
The middle of the pot is 60% humidity, the sides of it are 30%. And I don't know is it "too much" water or "too little" water situation...