White pine

tiswas · White Belt Joined: 18 Apr 2005 Posts: 2 Location: Tarvin

I have a White Pine and the needles have started turning yellow , they start with a small yellow patch then it increases and then turns brown .
It is kept in full sun and is potted in KIRYU ,
I suspect needle cast , anybody any other suggestions ???

Tim

I live in Cheshire , England

Stymie · Posted: Thu May 19, 2005 7:51 pm Post subject: Re: White pine

Pines don't need as much water as you might imagine, particularly if recently re-potted. When was it potted and why Kiryu? Is it grafted or on its own roots?
Meanwhile give it partial shade. Someone may be able to diagnose a deficiency, keep watching for developments.

jack1954 · Posted: Fri May 20, 2005 1:46 pm Post subject: white pine

hi tiswas
if it is have read that pine needle cast can be cured by applying a good copper based fungicide at regular intervals throughout the summer.
good luck
jack

Dick · Posted: Fri May 20, 2005 1:58 pm Post subject: Re: White pine

The fact that the needles are browning from the middle of the needles outward sounds suspiciously like a fungus.

The trouble is that white pines are so darn tough that they resist almost any such attacks. So I'm not as certain as I would like to be on the fungus attack. Can you post a photo?

tiswas · White Belt Joined: 18 Apr 2005 Posts: 2 Location: Tarvin

It was in Kiryu when I purchased it and it was repotted last year . it is grafted

Stymie · Posted: Fri May 20, 2005 6:49 pm Post subject: Re: White pine

The grafted ones are even more robust than those on their own roots. As a precaution, I don't think that a spray with fungicide is going to do any harm. In the absence of one, you could use a very dilute cupric sulphate solution. A mere pinch in a pint of water is plenty strong enough. Keep us in the picture.