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Essex, United Kingdom Gb

My large and healthy bay tree has white "chalky" like blobs on the trunk and underside of the large branches. This can be easliy scratched off and is a bit like cotton wool fibres when rubbed between my fingers. Can you tell me what it is and if its harmful? What should we treat it with, if it is a problem.



Probably scale insect of some variety - Provado make a spray for these, or wash them off with insecticidal soap (or mild/eco household washing up liquid/soap)and water, and rub over affected areas with a light application of meths on a cloth.

24 Jul, 2010

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