help guys, pleasae, i have client you has today noticed a whole bunch of quite large white things on his small magnolia tree, i have never seen anything like it, they are attached to the branches and to the underside of the leaves. They feel a bit like marshmellows, but i have no idea what they are. can anyone help urgently. Sorry not been around for a while but thats gardening for you
This sounds like cushion scale, which is found on many shrubs and heavy infestations blacken the foliage of camellia, rhododendron, trachelospermum, euonymus japonicus and holly. Notice I am listing evergreens, because they suffer the worst, but it has been seen on hydrangea in Norfolk not far from here. I can give a good description of the scale insects if you want more information, but you might be able to Google.
You would be looking for systemic insecticides containing thiacloprid (Provado Ultimate Bug Killer concentrate). There are others suitable. Thorough application to the underside of leaves is required.
Let me know if you want the complete story on these scale insects.
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