black area

I did an experiment this year, in late spring I plucked some specific needles from the young (5 years old from seed) trunk of an Austrian Black Pine (pinus nigra). I am not sure if this is anything new (it probably isn't) but in early autumn I looked at the places in which I did the plucking and...

Forgive me if this has been covered before. Please, could anyone help tell me what’s going on here (see pics)? About 4-5 days ago I noticed some of the leaves on one side had turned v dark (almost black). I initially thought it might be sun burn - Id left it out too long in the sun one...

I recently purchased a trident maple on the 9th of September, and something is wrong with several of the leaves and I need help figuring out what's wrong so I can fix it asap please. When my bonsai arrived, several of the leaves had portions of black/grey areas that I assume are dead/dying, I'm...

Hey Folks, I have a Japanese maple here which was repotted from nursery stock about a month ago. I only made one cut, and that was on the top to shorten the tree. Everything was looking great from the repotting up until this last week. At first, just shortly after repotting I noticed 2 very...