Spots in leaves (Wisteria , Trident Maple and Vitis)

[Diogo Carvalho]

Hello all,

I've been searching for help about a problem with some of my trees, there as spots and a bad condition of some leaves. I've seen some that sugest that it might be fungus and others say that it can be some nutrient deficiency. Can you plase help? The Vitis and the Wisteria have been with me for a year now and the trident maple only recently aquiered.
I'm posting some pictures that i hope that can help identify the problem.

I'm hoping to find an answer with a possible solution for this. Thank you all in advance and sorry for any misspells.

 

[Bnana]

The yellowish leaves with green around the veins mean there is nutrient deficiency. Possibly nitrogen or iron. This can result be remedied by proper fertilisation.
Some leaves have brown edges, that might be related to that but can also be sunburn.

That trees have somee spots on some leaves, like your vitis, is normal, nothing to worry about.

 

[leatherback]

The little black spots are very much like fungal infection.

The edges of the leaves drying out CAN be fungal, but more likely is an indication of the roots having trouble getting sufficient water to the leaves. If I look at the chlorosis of the leaves, my guess would be, root trouble. Either too wet or too much fertilizer would be my first guess.

What substrate do you have them in, how and how often do you water and fertilize?

 

[Bnana]

If I look at the chlorosis of the leaves, my guess would be, root trouble. Either too wet or too much fertilizer would be my first guess.

Also possible. We do need more info on fertilizer, soil and watering.

 

[penumbra]

If you spray with a balanced fertilizer with macro and micro nutrients the yellow will disappear within a couple days to a couple weeks.

 

[Diogo Carvalho]

Thank you all for the help. They are all in very draining soil and i keep the fertilizing from 15 to 15days. They get water every day since the soil is very drenant (40% akadama, 20%Pomice and the rest is a mixture of coconut fiber and other organic materials). But they get water everday during the hot season since the top of the soil is already dry. Ill try change the fertilizer to get the iron and nitrogen in better propotions and ill spray with anti fungal. But the root problems, how can i check that?

 

[Diogo Carvalho]

Also possible. We do need more info on fertilizer, soil and watering.

Thank you all for the help. They are all in very draining soil and i keep the fertilizing from 15 to 15days. They get water every day since the soil is very drenant (40% akadama, 20%Pomice and the rest is a mixture of coconut fiber and other organic materials). But they get water everday during the hot season since the top of the soil is already dry. Ill try change the fertilizer to get the iron and nitrogen in better propotions and ill spray with anti fungal. But the root problems, how can i check that?

 

[Tums]

I wonder if the coco coir in your mix is leading to calcium/magnesium deficiencies? If you google "calmag deficiency chlorosis" and pretend those are all japanese maples instead of marijuana, the leaves look somewhat similar to yours.