While the scientific literature indicates what Asian giant hornets eat in their native region, scientists didn’t know what they would eat in the Pacific Northwest – until now.
This story starts at the end - examining the fecal matter, or frass, found in the cells with the Asian giant hornet larvae. To determine what the baby hornets had been eating locally, the WSDA molecular diagnostics lab ran DNA analysis on hornet frass.
The results showed some of what scientists expected – paper wasps and honey bees, for example. But some things – like cow (possibly from a discarded hamburger?) – came as a bit of a surprise. Take a look at what else the hornet larvae have been eating on the menu below.
Visit agr.wa.gov/hornets to learn more about Asian giant hornets.