In article ,
lid says...
On 12/09/2010 22:08, Martin Brown wrote:
On 12/09/2010 16:35, Donwill wrote:
On 12/09/2010 15:45, Donwill wrote:
Recommendations please?
Don
Red spider Mite I should have said.
Don

What sorts of plants are they on?
It affects the best strategy.
Ipomoea, Morning glory, and Moon Flower.

But ideally for ornamentals you want a long acting systemic miticide
that is compatible with the plants you want to stay alive.

Tweaking the humidity slightly will help.

If you don't care what lives and what dies then a sulphur candle is
pretty good as a total knock down. But it will play havoc with the
soft furnishings. OK in a dormant greenhouse though.

Its a bit too late in the season to do anything effective now.

Regards,
Martin Brown
Thanks for that, They are now residing outside, they are too far gone I
think to recover, We thought it was leaf scorch to start with so they
got a head start on us.
Will sow more in Feb 2011.


The biological control is best, but at this time of year they are
allready starting to colour up ready for hibernation, and it doesn't work
that quickly. I would cut the tops of the plants away now and burn them
as that where most of the mites will be, then use a soft soap spray.
During winter have a thorough clean of the area and dispose of as much
plant material as possible and be ready in the spring to order the bio
control at the first sign of trouble, also try and keep the humidity up.

Some sprays do work but in my experiance not for long and anyway anything
strong enough to kill red spider mite is not going to be great for your
health!
--
Charlie Pridham, Gardening in Cornwall
www.roselandhouse.co.uk
Holders of national collections of Clematis viticella cultivars and
Lapageria rosea