Time to act:
Dec, Jan, Feb, Jul, Sep
The sap-feeding scale insect Unaspis euonymi is particularly attracted to Euonymus japonica, although it will feast on other evergreen euonymus too. The white males congregate on the leaves, but the brownish-black females live on the bark, making them hard to spot. Large numbers cause yellowing of the leaves, dieback and loss of vigour.
Heavy infestations of scale insects discolour the evergreen leaves of euonymus and leave yellow areas, which can lead to dieback and loss of vigour.
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