Hi Errol - Rubbing Alcohol is good if you have a small collection in the house. If you have a rather large collection in a greenhouse, you need a different solution because alcohol doesn't kill the adult scale unless they are scrubbed with a toothbrush. This is the time of year I start experiencing scale in the greenhouse. I try to stay on top of the problem by inspecting as much as I can. I found a cattleya just yesterday that had boisduval scale.
I am wondering what you all do about boisduval scale. The other scale seems fairly easy to eradicate. Boisduval scale seems to be drawn to certain plants (especially fragrant cattleyas in my collection), and once the plant has it, it will have scale again and again, no matter how often you inspect or scrub the plant. I have gotten into the habit of throwing plants out unless it's one that I truly LOVE. If anyone has any suggestions, I would love to hear them. Denise Nash, near Ann Arbor, Michigan Errol Porter wrote: >Why use Sevin, in my opinion all these chemicals are potentially dangerous >to people, pets, etc, when you can use rubbing alcohol to control scale, >mealy bugs etc, rubbing alcohol being quite safe. > >Errol > > >At 12:25 AM 5/22/2007, you wrote: > > >>Has anyone used Sevin (=carbaryl) on Cattleyas and relatives? Safely? >> >> John Waddington >> _______________________________________________ the OrchidGuide Digest (OGD) [email protected] http://orchidguide.com/mailman/listinfo/orchids_orchidguide.com
