Hornet
Bigger and louder than a wasp — but still not out to get you
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Overview
Hornets are the largest of the social wasps and carry a reputation that far outpaces their actual danger. Like all wasps, they sting defensively rather than aggressively — and outside the immediate zone around their nest, they're focused on hunting prey insects, not people.
Friendly fact
A single hornet colony can remove tens of thousands of caterpillars, flies, and aphids from a garden over a summer — they're one of the most effective pest controllers in the insect world.
Fascinating facts
- 1
Hornets are predators, not scavengers — they hunt insects, spiders, and even bees, returning them to the nest as protein for larvae.
- 2
A hornet's sting releases a pheromone that signals other hornets to join an attack, which is why disturbing a nest escalates quickly.
- 3
Hornets build their nests from chewed wood pulp mixed with saliva, producing a papery material that insulates better than most artificial foams.
- 4
European hornets (Vespa crabro) are the only social wasps in Europe that fly after dark, attracted to lights like moths.
- 5
The Asian giant hornet can fly at 40 km/h — but kills fewer people annually in Japan than falls from stairs.
Myth vs. Reality
Myth
Three hornet stings can kill a human.
Reality
This is false. Hornet venom is slightly more potent than wasp venom, but the lethal dose for a healthy adult requires hundreds of stings. Deaths are almost always due to allergic anaphylaxis — the same risk that exists with bee stings.
Myth
Hornets attack without provocation.
Reality
Hornets only sting when the nest is threatened or they are physically threatened themselves. Foraging hornets away from the nest are not aggressive and will not sting unless grabbed or swatted at.
Myth
Hornets are just larger, angrier wasps.
Reality
Hornets are actually more tolerant than common yellow jackets in some respects — their nests are in sheltered locations and they're less likely to forage near human food.