Bug FAQPoplar-and-Willow Borer
Cryptorhynchus lapathi · Order: Coleoptera · Family: Curculionidae
Also called: Withy Weevil
Source: Wikipedia
The poplar-and-willow borer is a weevil that attacks willows grown for basketry. It is native to Europe.
Source: Wikipedia
How to recognize it
It is known as a pest of willows cultivated for basketry.
Source: Wikipedia
Is it a pest in the house?
It is considered a pest of basketry willows.
Source: Wikipedia
Where it lives
It lives where basket-making willows are grown.
Source: Wikipedia
What it eats
It feeds on willows used for basketry.
Source: Wikipedia
Where it comes from
The species originates from Europe.
Source: Wikipedia
Where it is found in the US
Recorded in 29 of 51 states and DC. Most records: New York, Washington, Idaho, Utah, Minnesota, Michigan, Colorado, Oregon.
Darker = more records. Counts are museum and citizen-science records, not population size.
Source: GBIF
Status: introduced in Canada. Source: iNaturalist
Months it is reported in the US
Source: GBIF
More photos
Questions people ask
What plants does the poplar-and-willow borer damage?
It damages willow trees that are grown for basketry.
Source: Wikipedia
Same family (Curculionidae)
Green Immigrant Leaf WeevilPolydrusus formosusDamages trees, gardens or crops
Black Vine WeevilOtiorhynchus sulcatusDamages trees, gardens or crops
Nettle weevilPhyllobius pomaceusDamages trees, gardens or crops
Asian Oak WeevilCyrtepistomus castaneusDamages trees, gardens or crops
Strawberry Root WeevilOtiorhynchus ovatusDamages trees, gardens or crops
Common Leaf WeevilPhyllobius pyriDamages trees, gardens or cropsSources
- Wikipedia: https://en.wikipedia.org/wiki/Cryptorhynchus_lapathi
Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia
Text written 2026-10-25 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-25.