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TOPIC: Neagari Black Pine yellowing needles tips

Neagari Black Pine yellowing needles tips 4 weeks 1 day ago #54359

One of my pines is showing yellowing tips in its needles (old needles, from last season).
As it's been raining every day I guess it is overwet. It is Spring here.
Puzzle is, the others are fine, both Red pines and Black pines.
So before I jump to conclusions by myself, I decided to ask:
Is this yellowing the usual for overwet pines or could it be from a completely different reason?
Please don't say Dothistroma needle blight, there are no red banding around the needles (yet...)
Any hints?



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  • Clicio
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Neagari Black Pine yellowing needles tips 4 weeks 1 day ago #54364

Pines do get yellowing needles tips if they are too wet. That would also be my guess. But pines do also get yellowing needles if they have a disease or if they are repotted in wrong soil.

I dug up a pine a month ago and it rained everyday, the weeks after and my pine has the same yellowing needles.
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Neagari Black Pine yellowing needles tips 3 weeks 4 days ago #54396

Sorry man, but I would be looking for something anti-fungal.

I see dots on the needles, which spead and then kill off the top off the needle..This is not regular yellowing of leaves.

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Neagari Black Pine yellowing needles tips 3 weeks 4 days ago #54400

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Neagari Black Pine yellowing needles tips 3 weeks 3 days ago #54402

Thanks a lot leatherback, it looks like it alright.

Ploioderma needlecast
"From March through May the year following infection, red-brown spots develop on needles. Tips of needles girdled by spots die while needle bases remain green and needles remain attached to twig. Black fungal fruiting structures that look like lines in the dead area of the needle form. Needles are cast in May through June the year after infection."
How to manage:
"Space plants and control weeds to ensure good air circulation around the tree. Apply a fungicide three times at 3-week intervals beginning in late May."

So, fungicide begins next week around here.
BTW, I have sprayed all my pines mid and late winter with diluted Lime Sulfur to prevent fungus. But... It's been too wet for the pines.
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Last edit: by Clicio.
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