Ask a Question forum: Cactus problem

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Chonburi, Thailand
Dec 2, 2017 10:15 AM CST
Can anyone please tell me what this is on my cactus and what to do about it? Thanking you in advance, Ron
Thumb of 2017-12-02/ronpitelka/8cc900

[Last edited by ronpitelka - Dec 2, 2017 10:16 AM (+)]
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Name: Baja
Baja California (Zone 11b)
Cactus and Succulents Seed Starter Foliage Fan Xeriscape Container Gardener Hummingbirder
Native Plants and Wildflowers Garden Photography Region: Mexico Plant Identifier Forum moderator Plant Database Moderator
Dec 2, 2017 11:59 AM CST
Looks like a scale insect. Do the individual light colored spots come off if you scrape them off with your fingernail? Get a bottle of 70% ethanol and a box of cotton swabs (Qtips) and clean them off carefully. The alcohol makes it easier to remove them because they let go a bit after it has had a chance to sink in. Some people like to use dilute soapy water too, whatever works for you. You have to get them off and keep them off. The second part is easier than the first if you make careful use of the alcohol/soapy water up front.
[Last edited by Baja_Costero - Dec 2, 2017 11:59 AM (+)]
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