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(a) Clusters of viburnum leaf beetle (VLB) egg masses along a Viburnum opulus twig. Eggs are laid inside cavities excavated in the twigs and hidden under the protective ‘egg cap’ secretion. (b) Wound tissue produced by a V. opulus twig encasing four VLB egg masses. Here, egg caps have all fallen off and no viable eggs are visible. Photos by Kent Loeffler.
