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The Viburnum Beetle (Pyrrhalta viburni) attacks many species of Viburnum plants. The larvae are the most damaging part of the Viburnum Beetle life cycle, and are of a creamy yellow colouring with black markings and a caterpillar-like appearance.
The Viburnum Beetle larvae feed on the Viburnum leaves and cause significant damage by shredding the leaves. The adult beetles do also feed but do not cause as much damage as the larvae. The Viburnum Beetles lay eggs in the late summer and autumn that overwinter in the bark and stems of the Viburnum. These hatch from April to May forming larvae that start feeding on leaves. This is the period in which most damage is caused until the end of June, when the larvae are fully grown and drop to the soil to pupate. The new adult beetles emerge later in the summer.
Where possible pick off any larvae that are observed on your plants during the spring. If this is not possible, or there are too many larvae, apply our Viburnum Beetle Killer Nematodes directly onto the Viburnum Beetle larvae on the leaves. This provides a safe, natural, and chemical free method of controlling the Viburnum Beetle larvae. Find our range of relevant products below.
