Ned also gives information in his catalogue. This pest should not be confused with the greenhouse spider mite, the cause of uniform speckling, which is intolerant of moisture and only survives inside. This is a real outdoor pest, causing severe damage to leaves of entire stands, leaving unsightly streaks and patches on all leaves. When the underside of the leaf is viewed through a magnifying glass, one will observe loose webbing and mites moving around the whole area of the leaf. The yellowish streak starts out small but gradually grows longer and spreads to other parts of the leaf and to other leaves in time.
Host plants seem to live fine with the pests.
Perhaps, no more of an inconvenience than a dog with fleas. They suck the sap from the leaf and leave a white or cream colored patch about 1mm x 2mm on the upper surface. In severe infestations these patches cover the whole leaf. This can be mistaken for variegation, nutritional deficiency, leaf miners, or some other unknown malady. It looks as though if this pest is introduced into the United Kingdom it will be impossible to eradicate.