Was checking out the garden today and noticed some blotching on this tree. I'm thinking some kind of deficiency but no clue as to what. Any ideas?
What's wrong with my Liriodendron tulipifera 'Mediopictum'?
I'm thinking manganese deficiency. I have it here on a cornus florida. It mimics, initially anyway, iron chlorosis. The other possibiity is potassium deficiency in the early stages.
I agree with snapple. probably manganese, possibly some other difficiency though. Here, I wouldn't be able to get a fertilizer that's heavy on that, I would have to buy one that simply has it in it. Maybe it's available where you're at?
Found one source. It might be a better idea to spend the money on a soil test first. Your local Cooperative Extension Office can provide that service for you, usually at a minimal cost. Better than guessing and might provide some really interesting results. This deficiency is supposed to be more prevalant in soils with a pH above 6.5, with high phosphorus or with poor drainage.
http://www.groworganic.com/item_F1676_Manganese_Sulfate_Tecmangam_Powd.html?welcome=T&theses=2985726
Thanks much. I think I have the "poor drainage" problem....
ugh....
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