Palmetto Weevil

Rhynchophorus cruentatus · Order: Coleoptera · Family: Dryophthoridae

Damages trees, gardens or crops. The palmetto weevil kills palm trees, making it a pest of shade trees.

Source: Wikipedia

Palmetto Weevil
Photo: johnyochum, CC BY

It is the biggest weevil found in North America. It is native to Florida and also occurs as far west as southern Texas and north to South Carolina. Its larvae bore into palms and can kill the tree.

Source: Wikipedia

How to recognize it

It infests palms and is regarded as a pest.

Source: Wikipedia

Is it a pest in the house?

Because it destroys palm trees, it is considered a pest for homeowners with palms.

Source: Wikipedia

How to get rid of it

For valuable palms, apply an insecticidal crown drench twice a year as a preventive measure.

Source: Wikipedia

Where it lives

It attacks stressed or transplanted palm trees.

Source: Wikipedia

What it eats

The grub stage feeds inside the palm, eventually killing it.

Source: Wikipedia

Life cycle

From egg to adult takes about 84 days.

Source: Wikipedia

Where it comes from

It is native to Florida and has been found as far west as southern Texas and north to South Carolina.

Source: Wikipedia

Lookalikes

It is the only palm-weevil species in the continental United States and the largest weevil, so other weevils are easily distinguished.

Source: Wikipedia

Where it is found in the US

Recorded in 10 of 51 states and DC. Most records: Florida, Georgia, South Carolina, Texas, Mississippi, Louisiana, Alabama, North Carolina.

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

Source: GBIF

Status: native in North America; native in United States. Source: iNaturalist

Months it is reported in the US

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Source: GBIF

More photos

Questions people ask

How can I prevent palmetto weevil damage to my palms?

Treat high-value palms with an insecticidal crown drench twice yearly.

Source: Wikipedia

When are palmetto weevils most active?

Adults are most active during late spring and early summer.

Source: Wikipedia

What part of the palm does the weevil damage?

The larvae tunnel into the trunk and can kill the tree.

Source: Wikipedia

Same family (Dryophthoridae)

Sources

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

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

Text written 2026-10-24 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-24.

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.