Scabs Or Scales On My House Plants. - Knowledgebase Question

Pequannock, NJ
Avatar for bautchie
Question by bautchie
March 18, 2001
I have found flat scab like "bugs" on two of my house plants. An Orchid and spider plant. I have used a commercial insect killer speciffically for house plants, but it isnt working. i have hand picked the "things" off the orchid, but way to many on the spider plant. In fact I have cut the plant way back in hopes of saving it. Any suggestions, to get rid of these critters and WHAT are they?

Answer from NGA
March 18, 2001
Scale is an insect and can be treated when in the soft "crawler" stage with insecticidal soap used according to the label instructions. Be sure to treat all surfaces and crevices as well as stems because they are sometimes difficult to see even in bright light. Gently scraping them off with a fingernail is another option but is somewhat time consuming on a large or intricate plant and you must inspect frequently if you hope to catch them all. It is difficult to control, as you are seeing. Sometimes if a plant is badly infested and not terribly rare or valuable it is worth considering getting rid of it to avoid spreading the problem to neighboring plants.

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