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Boxwood Shrubs

Q.Caterpillars in box hedge

Zone Teddington | Anonymous added on April 12, 2020 | Answered

Box hedge 9 yrs old. Last year looking a bit weary. This year seriously leaves dead. But shoots and stems still alive and green
on inspection caterpillars green and black striped curled up in all the leaves
Do I cut back to 10” high and spray caterpillars
Or dig them up
Plant new.
But will the caterpillars be in the soil or surrounding plants and come back

A.Answers to this queston: Add Answer
Certified GKH Gardening Expert
Answered on April 13, 2020

It may be the dreaded boxwood tree moth. A Bt type spray seems to be most effective. The moth lays eggs on the plant so it is not in the soil. Here are some other insects that plague boxwoods:




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