Hi Mom,
I have had good success with a product called
GARDEN SAFE HOUSEPLANT SPRAY by Schultz. There is also one for Roses.
The main ingredient is .01% Pyritherins. Be sure to check this as the spray
bottles look the same.

Now more importantly, try to isolate the plants have scale because they
breed & move
fast!!!

Also bear in mind that if you use something untried on an orchid it won't
die right away like a house
plant, if the chemical is too strong or petroleum distillates.
Good luck,
Wendy

"Maggie's Mom" wrote in message
. ..
Yesterday I've noticed SCALE parasites on couple of my orchids. I've seen
scale on my ferns, but that was killed off by Bayer Dual Action Rose and
Flower Insect Killer.

It is very effective on scale, most effective of everything I used so far.
Can I possibly use it on orchids (phals, cattleyas, dendrobium) w/o
damaging plants? Has anybody in this group used commercial bug sprays on
their orchids without damaging them?

Thanks for your input, - Maggie's Mom.