Bamboo pest

JohnnieB(Washington, DC 7a/b)February 9, 2009

I have two clumps of Fargesia robusta that have some sort of mealy bug, scale or other homopteran insect pest. They form a thick white waxy coating and are reddish when I squish them. I noticed just a few on one plant last year but ants were tending them and they are now all over both plants, probably thanks to the ants. I really, really hate to use pesticides in my garden; is there any hope of effective treatment that doesn't use pesticides, otherwise something with low toxicity?

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boomantoo

I don't know what it is that you have but, I think it's aphids cause they secrete a sugary substance and I think that's what killed my phyllostachys nigra, the sugar substance attracts the ants and I could not get rid of it. The plant lost most of it's leaves and I thought it was going to make a comeback. Some of the leaves came back but it later died no shoots ever from this plant. I had the plant for two years, I think it had this when I bought it but not sure I was a newbie then.

    Bookmark   February 9, 2009 at 3:14PM
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JohnnieB(Washington, DC 7a/b)

I did a bit of research and think what I have is a kind of wax scale. Still trying to figure out what species, and how to control

    Bookmark   February 9, 2009 at 3:23PM
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steve_nj(7-a)

Scale can be difficult to eliminate. Here's some info I found. Of course if your scale is a different species, this may not apply. With any scale, hit the crawlers.

Here is a link that might be useful: scale

    Bookmark   February 15, 2009 at 8:47AM
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Embothrium(USDA 8 Sunset 5 WA)

As mentioned at the last link provided if you aren't going to watch for the crawlers and spray those then you are left with hand picking the adults and crushing them.

    Bookmark   February 16, 2009 at 2:44PM
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JohnnieB(Washington, DC 7a/b)

I took another look and I'm still not entirely certain what it is. It might be a kind of mealy bug but if so it produces a heavy waxy coating. That might just be their winter protection. I hope this didn't come from a nearby Miscanthus, which had a serious mealy bug problem, to the point that I finally just cut it down and kept cutting it until it died (too much trouble to dig it out!).

    Bookmark   February 19, 2009 at 4:17PM
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