Scrape minor scale infestations off plant surfaces with a fingernail, or use a cotton swab dipped in rubbing alcohol. I have one in near total shade and it is pretty scraggly compared the two I have in part sun. You should repeat the treatment weekly until it is clear of scale. Here is a collection of articles on euonymous, and their care. Add 1 tablespoon of alcohol to a pint of ready to use commercial neem soap spray. (Was told the problem is aphids.) Spray all parts of the plants thoroughly. Spray heavily infested plants with a mixture of alcohol and Neem Oil Soap every 3 days for 2 weeks. Do not use chemical sprays unless pests are present. from the entire planting. Yes, Ive Euonymus Scale, but would like to save this plant. Spray when the weather is mild and dry. Controlling scale on Pachysandra Asked February 23, 2017, 9:37 AM EST For the last 5 years, I've experienced severe damage to several pachysandra patches as a result of scale infestation; they always seem to sneak up without warning. but i really dont know. Horticultural oil, which is 97 percent to 98 percent petroleum oil, helps control scale insects, mites, aphids and psyllids, ... Euonymus scale creates pale yellow rings on leaves. * Fletcher scale * Apple aphid on crabapples * Honeylocust spider mite. Horticultural oil sprays cause the least reduction in lady beetle populations. is there an organic treatment?? Spray it with diluted 100% Neem Oil, using 2 tablespoons of oil to 1 gallon of water, shaking well whilst spraying all parts of the plant. Spray the soil around the plant too. The insecticide that oils are used for the most are armored scales (pine needle scale, euonymus scale, oystershell scale). Help Desperately Needed! Luckily, euonymus scale does not spread to anything other than euonymus. Could dropped leaves removed from base - and application of Neem Oil - then some SuperThrive help?? ... Euonymus scale is an armored scale that does not exude a honeydew and growth of a black sooty mold. Euonymus Scale (Unaspis euonymi) problem on Euonymus Aortunei (Blondy) Zone bishops stortford, ... Second, I would invest in some neem oil, as this will get rid of any remaining scale. Also, these shrubs do best with a fair amount of sun. Chemical Control Dormant sprays with horticultural oil, and summer sprays with oil or insecticides, will help control the Euonymus Scale. Neem oil works better than any chemical insecticide I've used on my euonymus. About three weeks ago, I had black powdery stuff on my 25 year-old euonymus hedge and sprayed neem oil three times over about a week and a half.