White bugs on my Euonymous Bushes

christy_124March 28, 2009

I have had these bushes for over 15 years and have never had anything attack them. This year however, these little white things are all over them and killing the bush. I clipped the dead part off, then sprayed with a pesticide for shrubs, then sprayed with Murphy's Oil soap. Then new growth started and has continued. However, these white scales are still on the bushes and I sprayed again today. They are awful. Should I cut these bushes all the way down? I don't want to lose them. Thank you for the information. I really appreciate it very much.

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petzold6596(8b southern NM)

A picture would be helpful so we could ID these "white things."

    Bookmark   March 28, 2009 at 10:22PM
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morz8(Washington Coast Z8b)

christy, you may have named your own pest - euonymus scale. While not particularly a problem in my own climate, from the number of posts about them they cause considerable damage other places.

See if this matches your pest -

Here is a link that might be useful: Euonymus Scale

    Bookmark   March 29, 2009 at 2:17AM
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Hi. I have two very mature euonymus bushes at my house which were planted by the previous owners. They took a no-maintenance approach to the landscaping. I am still trying to undo their mistakes/abuse. The first time I took a good look at my euonymus, there was so much scale I thought it was powdery mildew. Yuk. Luckily, euonymus scale is particular to that plant. I was able to get my infestation under control by using neem oil. A dormant oil spray (like All Seasons) would probably work too. You can buy neem oil online if you can't find it locally. I get mine from organeem.com-- even with shipping it is $10 less per quart than any store here.

    Bookmark   March 31, 2009 at 11:39AM
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We had a bad year for them about a decade ago. I had several types of euonymus in my rockery and also as ground cover near a shade garden. Yes, oil is effective. Mine were polluted as well.

I clipped them down as far as I could, raked up the debris and burnt it, and then just let it fly with hort oil. Decreasing the foliar surface made it a lot easier to get good coverage. I only had to treat it once, and it has never reappeared.

    Bookmark   April 6, 2009 at 9:57PM
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