If your plants have been out all summer and your leaves are pitted likes
those in the recent pictures your plants most likely have or had spider
mites. The pitting will not go away when the mites are gone. The spider
mites are all but impossible to see but you can sometimes find a little
webbing on the underside of the leaves. Rays mix should take care of them
as well as the other problems. Funginex is not a spray that is used on
orchids often and it will just not help most common orchid problems.


Pat

"dd" wrote in message
...
The nights are getting cooler in New England, and I'm going to bring in
some phals, dendrobiums, and oncidiums that have been summering
outside. If anyone could answer the following questions, I'd be
grateful.

1. One night, we had an overnight temperature of 52 degrees. This seems
too cold to me, and seems like a clue to bring in the orchids real
soon. At the moment, they're still outside and looking healthy,
but...How cold is too cold to you? (My orchids are huddled up against
the east side of the house, so they are somewhat protected from the
elements.)

2. An oncidium looks like it has a problem with a bacterial/virus type
infection, and I need to spray it with funginex. A couple of the phals
have scale and what appears to be a bacterial infection (pitted leaves
that look like those that were recently posted). I read (somewhere)
that one shouldn't dose an orchid with both a pesticide and fungicide
at the same time. Ok, if I want to use both treatments, how long should
I wait between the two treatments? Until one dries? A day? A week?

Thanks for any input.