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Scale insects

Posted: Fri May 23, 2008 7:09 am
by Phil
My Holly tree is about 18 yrs old and is a lovely tree about 12ft high, it is full of red berries in the winter and everybody comments on how beutiful it looks. But this year in early summer i noticed that the leaves were suddenly turning yellow and falling off, when i looked carefully i saw little scaley insects under the leaves and on some of the stems. i was given a spray to spray it with but they are still there, i can't spray under each leaf as there are hundreds of leaves, and they hurt, even pricking through my gardening gloves.
Can anybody help?

Phil

Scale

Posted: Sat May 24, 2008 5:26 am
by JPlovesflowers
Phil,
I believe that ladybugs eat scale insects. I have been wanting to get some for aphids on my roses and I have some problems with scales on my azaleas as well. You can also use one of the Bayer systemic fertilizer/insecticides if you are wanting a synthetic solution.
JP

Posted: Sun May 25, 2008 4:37 pm
by Phil
Thanks JP
I think i will have to try some sort of synthetic spray as knowing my luck the Ladybugs (Ladybirds in the UK) will fly away

Phil

Posted: Mon May 26, 2008 11:14 pm
by TheLorax
Try an appropriate horticultural oil. It can be sprayed on the undersides of the leaves just as easily as any synthetic spray. Could very well be more effective than a pesticide in the long run anyway since you don't know exactly what your foe is.