Andy wrote:
"Alan Holmes" wrote in message
...

Is this normal?

I've never noticed it happen in the past.


If you mean individual side-stems are going off randomly
and getting covered with a dusty mould, then I think it's
normal. I just pick the mouldy stems off. They've only got
a few weeks to go anyway.

Andy.



Are the unripe tomatoes going brown and hard ? If the powdery dust is
blight spore then you'll only be spreading the disease by making it
airborne.

http://www.rhs.org.uk/advice/profiles0803/tomato_blight.asp
http://www.khlga.freeserve.co.uk/potato%20Blight.html

Richard.