Brown Leaf Weevil

Phyllobius oblongus · Order: Coleoptera · Family: Curculionidae

Also called: Weevil

Damages trees, gardens or crops. The brown leaf weevil can damage trees because its larvae feed on tree roots.

Source: Wikipedia

Brown Leaf Weevil
Photo: Udo Schmidt, CC BY-SA

Brown leaf weevil (Phyllobius oblongus) is native to Europe. Its larvae feed on the roots of trees, which can harm the trees.

Source: Wikipedia

What it eats

Larvae feed on tree roots.

Source: Wikipedia

Where it comes from

Native to Europe.

Source: Wikipedia

Where it is found in the US

Recorded in 20 of 51 states and DC. Most records: Michigan, New York, Vermont, Wisconsin, Pennsylvania, Minnesota, Massachusetts, Ohio.

Darker = more records. Counts are museum and citizen-science records, not population size.

Source: GBIF

Status: introduced in United States; introduced in Canada. Source: iNaturalist

Months it is reported in the US

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Source: GBIF

More photos

Questions people ask

Where is the brown leaf weevil from?

It is a species native to Europe.

Source: Wikipedia

Same family (Curculionidae)

Sources

  • Wikipedia: https://en.wikipedia.org/wiki/Phyllobius_oblongus

Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia

Text written 2026-10-22 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-22.

How this page works

This is one bug's fact sheet. The colored box at the top says whether it is dangerous. Sections below cover how to recognize it, whether it is a pest, and how to deal with it. The US map shows which states have records; tap a state to see other bugs there.

Every fact on Bug FAQ comes from a named source (university extension sites, government agencies, GBIF, iNaturalist, Wikipedia). The source is linked next to each section. If we have no source for something, we leave it out.