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Viburnum > Stems/Branches > Small piles of sawdust on lower stem
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Viburnum clearwing borer
Synanthedon viburni
- Plants may be wilted
- Stems may dieback or have sparse foliage with a few leaves at tip
- Lower part of stems are gnarled and scarred with sawdust
- Pupal cases may be found sticking out of holes in bark in spring
- Entire bush may die
- Adult borers have ½ inch bluish black bodies with yellow markings and a ¾ inch wingspan – wings are clear
- More information on Viburnum clearwing borer
