If you’re a homeowner who spends time outside, you’ve almost certainly met paper wasps. These slender, long-legged insects build the open, umbrella-shaped nests you find under eaves, deck railings, porch ceilings, and grill lids, and they’re found throughout North America. So do paper wasps sting? And how worried should you be about the nest by your back door?
For non-aggressive wasps I've had great luck spraying nests with this Spectracide wasp remover in the evening. For a nest up high in an eave, soffit, or tree, this Gotcha pole adapter clamps onto the can so you can spray from the end of an extension pole and treat the nest from 10+ feet away instead of standing right under it. And for anything aggressive I wear this ridiculous-looking upper torso beekeeping suit and keep my distance. It seems silly, but trust me, I learned the hard way.
Short answer: Yes, paper wasps can sting, and the sting hurts. But paper wasps are defensive, not aggressive. They sting almost only when their nest is disturbed or when one is trapped against your skin. Away from the nest, a foraging paper wasp will nearly always ignore you.
This guide covers paper wasp behavior: when and why they sting, the warning signs before an attack, which situations cause the most stings, and how to live alongside them safely. If you’ve already been stung, go to our paper wasp sting treatment guide for first aid and symptoms.
Paper wasps belong to the genus Polistes. They’re social wasps that live in small colonies started each spring by a single queen (sometimes a few cooperating queens). They’re called paper wasps because they build their nests from wood fibers chewed and mixed with saliva, which dries into a gray or brown papery material.
Their nests are easy to recognize:
Paper wasps are about ¾ to 1 inch long, with a thin waist and long legs that dangle when they fly. Color depends on the species. Many are brown with yellow or reddish markings, the European paper wasp is black and yellow and easily mistaken for a yellowjacket, and red wasps are mostly reddish-brown. For help telling them apart, see our paper wasp vs. yellow jacket identification guide.
Yes. Female paper wasps (the queen and her workers) have a stinger and will use it to defend themselves and their colony. A few facts are worth knowing:
Not in the way most people mean. Paper wasps are one of the least aggressive social wasps homeowners deal with, especially compared with yellowjackets and hornets.
Here’s why they have a gentler reputation:
That said, “less aggressive” doesn’t mean harmless. Paper wasps defend their nest firmly, and several wasps can sting at once if you bump the nest. Some species, notably the southern red wasp, have a reputation for being quicker to defend than others.
Almost every paper wasp sting comes from one of three situations.
This is the cause of most stings. Guard wasps on the nest react to vibration, movement close to the comb, shadows passing over it, and breath. Common triggers include:
A forager or overwintering queen trapped against your skin will sting in self-defense. This happens when a wasp crawls into a shoe, glove, sleeve, towel, or folded laundry left outside, or when you sit on or lean against one. It also happens when someone swats at a wasp and pins it.
Swatting rarely kills a flying wasp but often provokes it. A paper wasp that’s been hit, or is being chased near its nest, is far more likely to sting than one left alone.
What paper wasps generally don’t do is sting at random. A paper wasp flying past you, sitting on a flower, or collecting wood fiber from your fence has no reason to sting. For more on this, see will wasps sting you for no reason?
Paper wasps usually give a warning before they attack. Learning to read it is one of the best ways to avoid being stung. When a guard wasp feels threatened, you may see:
If you see any of these, stop what you’re doing and walk away slowly and steadily. Don’t swat, run, or flail. Calmly moving several yards away usually ends the encounter. If wasps are already stinging, leave the area quickly and get indoors. Paper wasps rarely pursue far.
Paper wasp sting risk follows the colony’s seasonal cycle:
| Season | What’s Happening | Sting Risk |
|---|---|---|
| Spring | A lone queen builds a small nest and raises the first workers | Low. Queens are cautious and rarely defend the nest aggressively |
| Early summer | First workers emerge and the nest grows | Moderate. Defense increases as workers take over |
| Mid- to late summer | Colony at peak size, many larvae to protect | Highest. Most stings happen July through September |
| Fall | New queens and males emerge, colony breaks down | Moderate. Fewer defenders, but wasps wander onto porches and into homes |
| Winter | Only mated queens survive, sheltering in protected spots | Low, but sheltering queens can sting if pressed (for example, in clothing or behind curtains) |
Time of day matters too. Paper wasps are active in warm daylight and settle on the nest at dusk. In cool mornings and at night they’re sluggish and much less able to respond. That’s why professionals usually treat nests early or late in the day. For more on daily patterns, see what time do wasps go to their nest? and when are wasps most active?
All Polistes species can sting, but temperament varies. Here are the species homeowners most often meet:
For most people, a paper wasp sting is painful but not dangerous. Expect sharp pain, then a red, swollen, itchy bump that improves over a few days. Our guide to normal wasp sting reactions explains what’s typical.
A paper wasp sting becomes dangerous in a few situations:
If you’ve had a significant reaction to a wasp sting before, talk to an allergist. Polistes venom differs from yellowjacket venom, and allergists test for it separately. Venom immunotherapy can greatly reduce the risk of future severe reactions.
Yes. Dogs are most often stung on the face or inside the mouth after snapping at a wasp, or on the paws after stepping on one. Mild swelling is common. Contact your veterinarian promptly if your pet is stung in the mouth or throat, is stung many times, or shows facial swelling, vomiting, weakness, or trouble breathing.
A few simple habits prevent most paper wasp stings:
Paper wasps are beneficial. They’re important predators of caterpillars that damage gardens, and they pollinate some flowers too. A nest in a corner of the yard that no one visits can often be left alone. It will be abandoned by late fall, and old nests are not reused.
Removal makes sense when a nest is near doors, walkways, play areas, pools, or anywhere people regularly pass, especially if anyone in the household has a wasp allergy. Small, low nests can often be handled by a homeowner at dusk with the right precautions. Our how to get rid of paper wasps guide walks through safe methods. Call a licensed pest control professional if the nest is large, high up, inside a wall void or other enclosed space, or if anyone involved is allergic to stings.
Rarely. Paper wasps away from their nest are focused on hunting and gathering, and they have little reason to sting. Most stings happen when a nest is bumped or a wasp is trapped against the skin.
No. Paper wasps have a smooth stinger that they pull back out, so you won’t find a stinger in the wound, and the wasp survives to sting again. Honey bees are the insects that leave stingers behind. See do wasps die after they sting you?
Paper wasps sting, and that’s what causes the pain and swelling. They also have strong mandibles for chewing wood and prey, but they rarely bite people in any way you’d notice. Learn more in do wasps sting or bite?
No. Yellowjackets are generally far more defensive and more likely to sting, especially in late summer when they scavenge for food and defend large, hidden colonies. Paper wasps are calmer, but their sting is rated as more painful.
Paper wasps don’t fly at night and are sluggish in the dark, but they can still sting if their nest is disturbed or one is handled. Never grab a nest by hand, even at night.
Most people describe a sudden sharp, burning pain that’s intense for several minutes, followed by throbbing, redness, swelling, and itching. See what does a wasp sting look like? for photos and descriptions of typical reactions.
Paper wasps do sting, and the sting is genuinely painful. But they’re defensive rather than aggressive, and nearly every sting is avoidable. Learn where they like to nest, check before you reach into sheltered spots, watch for warning signs on the nest, and back away calmly if they become agitated. A little awareness lets you keep these garden predators around while keeping your family safe.
For a complete overview of paper wasp biology and behavior, visit our Paper Wasp Guide.
Related paper wasp articles: