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Is it scale?
I have two Brassolaelias, Yellow Bird and Petite Stars that have an odd
condition that I've been treating as scale, but now I'm not sure that it is. The leaves all look a healthy even green, but they have little tiny bumps UNDER the top surface of the leaves, and the bumps are the same color as the leaves. When the sun shines on the leaves, it looks as if the leaves have emerging pimples. First, I tried swabbing the leaves with rubbing alcohal and scubbing with a toothbursh. No change. Then I sprayed them with Enstar. Still there. Then I sprayed them with Othene and scrubbed. The bumps are still there. Then I poked some of the large bumps with a needle and looked at what was there through a jeweler's loupe--it looks like a faintly whiteish blob. I cut out some of the most bumpy leaves. My last act has been to use a systemic. Do I have scale or something else? What should I next? Both plants are in spike with mulitple spikes, and I have had both plants for more than one year. I've looked in the AOS book "Orchid Pests and Diseases" and am not seeing this symptom in the color photos. The black and white photos are sort of useless. Thanks for any help. |
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