Northern Giant Hornet | National Invasive Species Information Center (2023)

Table of Contents
Spotlights ARS Research News - ARS Asian Giant Hornet Specialist Is Part of New Exhibit at the National Museum of Natural History ‘Northern Giant Hornet’ Adopted as Common Name for Vespa Mandarinia Invasive Species Data Citizen Science Data Critical to Fighting the Asian Giant Hornet North American Hornet Screening Tool Now Available Asian Giant Hornet Complete Genome Released by the Agricultural Research Service No, Americans Do Not Need to Panic About "Murder Hornets" Distribution / Maps / Survey Status Asian Giant Hornet Public Dashboard Videos Invasion! Asian Giant Hornets Have Arrived YouTube - Discoveries with Impact: Asian Giant Hornet Selected Resources Pest Alert: Asian Giant Hornet Priority Species: Asian Giant Hornet National Pest Alert: Asian Giant Hornet Invasive Species Compendium - Vespa mandarinia North American Hornet Screening Tool - Vespa mandarinia Northern Giant Hornet Plant Pest and Disease Program: Northern Giant Hornet Pest Alert: Asian Giant Hornet [PDF | 330 KB] Rural and North - Asian Giant Hornets Pest Alert: Asian Giant Hornet [PDF | 180 KB] Insects, Pests, and Weeds - Northern Giant Hornet Invasive Pests - Asian Giant Hornet Pest Watch: Asian Giant Hornet [PDF | 428 KB] Plant Health - Asian Giant Hornet Fact Sheet - Asian Giant Hornet, Vespa mandarinia Smith [PDF | 289 KB] Asian Giant Hornet: A Potential Threat to Honeybee Colonies in Oregon Asian Giant Hornets EDIS - Asian Giant Hornet No Such Thing as a "Murder Hornet:" Asian Giant Hornet, an Invasive Species to Monitor Utah Pests - Asian Giant Hornet What Looks Like an Asian Giant Hornet Animal Diversity Web - Vespa mandarinia Asian Giant Hornet Fact Guide Insects, Pests, and Diseases: Asian Giant Hornets Northern Giant Hornet Giant Asian Hornet (Vespa mandarina) FAQs Videos


Distribution / Maps / Survey Status

  • Asian Giant Hornet Public Dashboard

    • Washington State Department of Agriculture.

    • The Asian Giant Hornet Public Dashboard shares detection and trapping data. Citizen scientists were able to view detections in real time, including the number of reported sightings and number of hornets confirmed by type. Coordinating this information provided input on future trapping and demonstrated the benefit of collaboration with citizen scientists. WSDA has indicated that citizen data sharing and bottle trapping efforts are crucial to protect Washington from this invasive species.


Selected Resources

The section below contains highly relevant resources for this species, organized by source.

View All Asian Giant Hornet Resources

(Video) Invasive Species
Council or Task Force
Federal Government
International Government
  • Pest Alert: Asian Giant Hornet [PDF | 330 KB]

    • Sep 2019

    • Government of British Columbia. Ministry of Agriculture.

    • Three Asian Hornets (Vespa mandarinia) were found in the Nanaimo area on Vancouver Island in mid-August. The identification has been confirmed by Canadian and international experts. This is the first time this insect has been found in British Columbia. Please report suspected Asian giant hornet sightings to the Invasive Species Council of British Columbia.

      (Video) Invasive Species Awareness Week: Asian Giant Hornet

  • Rural and North - Asian Giant Hornets

    • Ontario Ministry of Agriculture, Food and Rural Affairs (Canada).

State and Local Government


(Video) Wasps species confused with Asian giant hornet


What is the biggest hornet in the world? ›

Vespa mandarinia is the world's largest hornet, measuring between 1½ to 2 inches in length.

What happens if you get stung by a giant hornet? ›

Asian giant hornet venom can damage the skin surrounding a sting. you have a lump in your throat or difficulty swallowing. Nausea, vomiting or diarrhea. Abdominal pain.

How painful is the sting of a giant hornet? ›

According to the Schmidt sting pain index, the giant hornet only ranks as a 2 on the scale of 1-4 which should, according to Schmidt, feel like “the debilitating pain of a migraine contained in the tip of your finger.”

What do you do if you see a Japanese giant hornet? ›

If you believe you have encountered an Asian giant hornet, calmly leave the area, particularly if you are allergic to bee or wasp stings. To the untrained eye, these hornets can be easily confused with other insects.

Do hornets make honey? ›

Bees use nectar as both a source of food and to make honey, whereas hornets do not. So, at the end of the day, no, hornets do not make honey.

How long do giant hornets live? ›

What is the lifespan of an Asian Giant Hornet? Asian Giant Hornets can live for 3 to 5 months.

Does killing a hornet attract more? ›

More often than not, killing an insect has the potential to attract other creatures to its carcass. As an example, when bees are killed, they release a pheromone which compels other members of the species to investigate their brethren.

Do hornets chase you? ›

Even if you walk within a few feet of the nest by accident, these insects may swarm you in a concentrated attack, and if you run, they will chase you. Because their stingers are smooth, each bald-faced hornet will be able to sting you multiple times without causing harm to itself.

Can you survive a hornet sting? ›

Most of the time, you can treat hornet stings on your own, but you should seek immediate medical treatment if your symptoms are severe. Hornets live throughout the United States and the world.

Are giant hornets aggressive? ›

While Asian giant hornets do not generally attack people or pets unprompted, they can if threatened and are able to sting repeatedly. Their stinger is longer and more dangerous than that of most other stinging insects, containing neurotoxins and capable of puncturing a beekeeping suit.

Will hornets sting you for no reason? ›

Will the Murder Hornet sting for no reason? Typically, this hornet won't sting unless provoked; however, if you try to catch, kill, spray, or otherwise disturb them, the odds of being stung rise considerably. Just like most hornets, if they feel threatened, they will defend themselves by attacking.

Are hornets aggressive to humans? ›

Hornets are usually non-aggressive insects, and they seldom attack humans in normal conditions. However, when they feel threatened or if someone is in the proximity of their colony, they may attack them. They are natural pest-killers as they feed on aphids and honeybees.

How do hornets prevent murder? ›

Sylo Insecticide is a synthetic pyrethroid insecticide that contains the active ingredient Cypermethrin, and serves as a good contact insecticide that will effectively kill or repel insects that hornets preys on and will prevent hornets from establishing nests on your property.

How big is a queen hornet? ›

Queens can exceed 2 inches in length while workers are typically between 1.4 and 1.6 inches.

Is honey bee vomit? ›

Here's Why. The notion that honey is “bee vomit” comes from the fact that bees chew and spit up nectar before it is made into honey. Most people agree with this assumption because it is a substance that goes down their esophagus into a second stomach then is forced back up, which is what vomit is.

Are hornets edible? ›

The giant hornet, along with other varieties of wasps, has traditionally been considered a delicacy in this rugged part of the country. The grubs are often preserved in jars, pan-fried or steamed with rice to make a savory dish called hebo-gohan.

Do hornets sleep? ›

Hornet Activity

Workers perform their jobs constantly during the day and night, but they rest in the hours in the early morning hours before sunrise.

What animal kills hornets? ›

Some species of birds, frogs, lizards, bats, spiders, badgers, and hedgehogs are known to eat hornets and wasps. Other creatures like rats, mice, skunks, and raccoons may even brave the nests in order to get at the tasty larvae inside.

Do hornets spit venom? ›

Generally, hornet venom isn't considered that toxic to humans, but due to their size, the amount of venom they release per sting can be harmful. Hornets release more venom per sting than any other stinging insect.

Can hornets remember human faces? ›

Our existing research shows that honeybees and wasps can learn to recognise human faces. Other evidence – from a US research group – shows that paper wasps (Polistes fuscatus) can very reliably learn the faces of other paper wasps, and appear to have evolved specialised brain mechanisms for wasp face processing.

What kills hornets instantly? ›

If you find a Hornets' nest and it is above ground, apply Stryker Wasp and Hornet Killer directly to the nest. Stryker Wasp and Hornet Killer will reach up to 20 feet away and provide instant knockdown, and a quick kill of any Hornets which fly out and are in attack mode.

What colors attract hornets? ›

Wasps are attracted to colors like yellow, white, pink, green, and purple. These colors replicate those of flowers where they find their prey, host insect, or delicious nectar to eat. Wasps are the least attracted to dark colors like blue and black.

Will a wasp sting me if I walk past it? ›

Most bees and wasps will not sting unless they are startled or attacked. Do not swat at them or make fast movements. The best option is to keep your distance, move away from the nest, or let the insects fly away on their own. If you must, walk away slowly, or gently "blow" them away.

What purpose do hornets serve? ›

Hornets Are Mother Nature's Pest Controlers

Like most living things on our Earth, hornets have a purpose. They help rid the world of unwanted garden pests – aphids – that damage and ruin gardens and crops by feeding on their young greenery.

Will a wasp sting me in my sleep? ›

Although they're not as aggressive as yellowjackets or hornets, they can attack you repeatedly and deliver painful stings. Wasps are active in the daytime, but can they sting you at night? They typically do not strike at night, and you're safe walking near wasp nests after dark as long as the nest isn't disturbed.

Can wasps be friendly? ›

They are not aggressive towards people, but can be defensive around their nest or another perceived threat, so observe from a distance.

What do hornets like eating? ›

Hornets | National Geographic. Hornets eat leaves and tree sap but are also accomplished predators, feeding on flies, bees, and other insects.

Is a hornet sting worse than a wasp? ›

Although they nest in the same way, hornets are known to be less aggressive than wasps if unprovoked. Hornet stings are also more painful to humans than typical wasp stings because of the chemicals found in hornet venom. Individual hornets can sting repeatedly, unlike honey bees.

What do giant hornets eat? ›

Asian giant hornets forage for protein-based food from May to November. They mostly feed on beetles, but will also consume various insects and spiders. Asian giant hornet workers increase bee-hawking, or hunting alone for honey bees, in August.

Is there a king wasp? ›

Megalara garuda, colloquially referred to as the "King of Wasps", is a large wasp and the only species in the genus Megalara, family Crabronidae, tribe Larrini. It is only known from the Mekongga Mountains in the southeastern part of the Indonesia island of Sulawesi.

What is the deadliest wasp? ›

For humans and other vertebrates, the tarantula hawk has one of the most painful stings on the planet. American entomologist Justin Schmidt created the sting pain index, with the help of variably willing or unwitting test subjects.

How big is the giant hornet? ›

At 1 and 1/3 inches long, northern giant hornets are the largest hornet species in the world and are found in Japan, China and several other Asian countries. They attack bee nests, often devastating colonies.

How big can a hornet get? ›

The largest hornet species in the world, Asian giant hornets are usually between 1 ½ to 2 inches in length. Queens can exceed 2 inches in length while workers are typically between 1.4 and 1.6 inches. They have a wingspan around 3 inches and a stinger measuring about a ¼ inch long.


1. State researchers remain on high alert for Asian giant hornets
(KING 5)
2. The Crisis: Invasive Species
3. Invasive Species of the St Joseph Channel Area
(The Kensington Conservancy)
4. Using ecosystem-based management to tackle invasive species in Lough Erne, Northern Ireland
(IUCN, International Union for Conservation of Nature)
5. Invasive Species of Guam
(National Pesticide Safety Education Center)
6. The Alien Invasion Scottish Invasive Species Initiative
(Inverness Botany Group)
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