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Get expert help from the RHS to deal with pests and other problems
Keep a watchful eye for signs of vine weevil beetles nibbling the edges of leaves and their grubs who will be munching on roots below the surface.
Glasshouse whitefly is a common sap-feeding insect, mainly of houseplants and greenhouse plants. They excrete a sticky substance (honeydew) on foliage, which allows the growth of sooty moulds.
The non-native golden root mealybug, Chryseococcus arecae was first recorded in the UK in 2012. It is a native of New Zealand that unlike other root mealybug species found in Britain can be found on the roots of outdoor plants all year round.
The common gooseberry sawfly is one of several sawfly species that can attack gooseberry and red/white currant during spring and summer.
During the summer the foliage of grape vines can become distorted and the underside of the leaves covered with a dense coating of fine hairs caused by the feeding activities of a gall mite. This does not affect the overall health of the vine.
Two species of green shield bug now occur in Britain. The common green shield bug is native to Britain, and of widespread occurrence. The southern green shield bug is a recent arrival from elsewhere in Europe that became established in the London area in 2003.
Unlike most aphids which are active during the spring and summer, the green spruce aphid is active during the winter months. It can cause needle drop on spruce trees (Picea species).
The grey squirrel is a common mammal that in gardens can both delight by its acrobatic movements and annoy by damaging trees, feeding on flower buds, bulbs, fruits and vegetables.
The harlequin ladybird, Harmonia axyridis is a non-native species that became established in the UK in 2004. It has since become very widespread and has many colour forms, some of which can appear similar to native ladybirds.
One of the most important problems of hellebores is a sap feeding aphid or greenfly. It can cause a lack of vigour and unsightly, sooty mould on the leaves and flowers.
A leaf mining fly that became established in Britain in the 1990s, it can cause considerable disfigurement to the foliage of stinking hellebore, Helleborus foetidus.
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