Bug FAQNorthern corn rootworm
Diabrotica barberi · Order: Coleoptera · Family: Chrysomelidae
Source: Wikipedia
The northern corn rootworm lives in North America. Adult beetles eat corn and, if corn is not available, they will feed on goldenrod pollen.
Source: Wikipedia
How to recognize it
It is found in North America.
Source: Wikipedia
Where it lives
It is found in North America.
Source: Wikipedia
Where it comes from
It is found in North America.
Source: Wikipedia
Where it is found in the US
Recorded in 28 of 51 states and DC. Most records: Illinois, Iowa, Minnesota, Wisconsin, Nebraska, Ohio, South Dakota, Kentucky.
Darker = more records. Counts are museum and citizen-science records, not population size.
Source: GBIF
Status: native in North America; native in Canada. Source: iNaturalist
Months it is reported in the US
Source: GBIF
More photos
Questions people ask
What does the northern corn rootworm eat?
Adults feed on corn, and if corn is not available they will eat goldenrod pollen.
Source: Wikipedia
Same family (Chrysomelidae)
Spotted Cucumber BeetleDiabrotica undecimpunctataDamages trees, gardens or crops
Bean WeevilAcanthoscelides obtectusDamages trees, gardens or crops
Cowpea WeevilCallosobruchus maculatusDamages trees, gardens or crops
Swamp Milkweed Leaf BeetleLabidomera clivicollisDamages trees, gardens or crops
Alder Leaf BeetleAgelastica alniDamages trees, gardens or crops
Dogbane Leaf BeetleChrysochus auratusSources
- Wikipedia: https://en.wikipedia.org/wiki/Diabrotica_barberi
Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia
Text written 2026-10-23 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-23.