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Rodentia, ie Rats or Mice
Beetles that like to munchie munchie on your orchids
Pollen Pinching visitors
Yikes! I suddenly feel lucky!
I just commented
This is a discussion on Pests in your orchids??? within the General Orchid Culture forums, part of the Orchid Culture category; Alcohol to kill thrips ? An interesting idea. In UK we don't have "rubbing alcohol" ...
Alcohol to kill thrips ? An interesting idea. In UK we don't have "rubbing alcohol" available ; the stuff sold by ironmongers and at pharmacies is methylated spirits, which is a methyl alcohol mixture - with water i assume - and with a colouring agent to identify it. I Have used it as a spot treatment for pests, and have been told it is OK like that for hard thick tough leaved plants ( Vanda, Cattleya...) but would cause cells to burst with thin leaved plants - ( Odontoglossum etc). So I normally dilute it 50:50 with water. Of course if I am removing scale or mealy bug for example,thye physical removal with a wetted cotton wool ball, or a stiff p;aint brush is sufficient to kill the things anyway, so I don't really know how efficient the alcohol is.
But thrips - I have hardly ever seen one, but the damage in the form of a bulls eye ring around the puncture is plain to see. With cymbidiums, holding the leaf up to the light shows them, with odontoglossums ( those are the only two categories where i have been troubled ) the damage remains as a black mark surrounding each leaf puncture , and with a lot of punctures the leaf is blackened.
actually what I thought were thrips turned out to be fungus gnats. The alcohol kills them, too. Thanks for the description of thrip damage. Hope I never have them (I was quite stressed thinking the fungus gnats were thrips) but will remember your description.