Yellowjackets

How Do I Identify yellowjackets?

Visually, it can be very difficult to distinguish between a yellowjacket and another wasp variety, especially mid-flight. In general, wasps are most easily identified by their slender bodies and pinched waists. Unlike bees, wasps tend to have much less hair on their bodies, appearing much more armored than fuzzy. Nearly all wasp species display striped markings of black, yellow, orange, brown, red, or sometimes even white. Unsurprisingly, yellowjackets fit this description. However, they do have a few key characteristics that set them apart from other common wasp species. 

Yellowjackets are noticeably smaller than other kinds of wasps, particularly the common paper wasp. For reference, adult paper wasps grow to be around 16-20mm long, while yellowjackets max out at 10-16mm in length. If you can get one to sit still for long enough, you’ll also notice yellowjackets have solid black antennae and short, yellow legs. In flight, yellowjackets keep their legs tucked beneath them, while most other wasps will let their legs dangle. They also have striking, black-and-yellow banded abdomens, often with black dots within the yellow bands. While both a Western and an Eastern yellowjacket variety exist, their appearances remain fairly consistent, and they look quite nearly identical. 

Cases of mistaken identity: Yellowjacket look alikes

The most frequent wasp that can be easily misconstrued for a yellowjacket is the European paper wasp. These wasps are probably the most similar-looking to yellowjackets with slender, black-and-yellow striped bodies. While yellowjackets tend to be slightly smaller than the European paper wasp, the two can look nearly identical if witnessed mid-flight. European paper wasps, like most wasps, can be differentiated from a yellowjacket while flying by their long, trailing hind legs. If you got close enough, you'd also be able to see that they have yellow-tipped antennae, unlike yellowjackets who's antennae are solid black. These wasps have become increasingly common and are a frequent sight during the warmer months. Luckily despite looking very similar to yellowjackets, European paper wasps do not share their aggressive nature and tend to sting only when provoked.

Another case of mistaken identity includes the European hornet. These hornets tend to be much larger than wasps or yellowjackets and are typically duller in color. Around 1.5" in length, European hornets have brownish bodies with yellow stripes on their abdomens. While not considered particularly aggressive, European hornets will sting if they perceive a threat. Interestingly, despite often being mistaken for one another, European hornets actually eat yellowjackets (and other large insects such as grasshoppers.)

Yellowjacket behavior & aggression

Perhaps the best way to distinguish a yellowjacket from another species of wasp is by its behavior. Most noticeable is the difference in a yellowjacket’s aggression. Wasps are generally wary of humans and tend to opt for avoidance rather than confrontation. Wasps can sting but will typically only do so when they feel threatened. Yellowjackets, however, are the schoolyard bullies of wasps. They are known to attack unprovoked, not only stinging humans, but potentially biting, as well. There is some debate about whether yellowjackets use their scissor-like jaws to harm humans; according to our entomology experts, it's certainly possible, but likely not very common as yellowjackets typically use their mandibles for feeding on prey. 

As if that wasn’t bad enough, yellowjackets can–and will–sting multiple times in succession. While all wasps have this capability, it’s not common for them to do so, unless they feel incredibly threatened. Yellowjackets will sting multiple times just for the sake of doing so. The aggression of the yellowjacket rivals that of many other stinging insects, particularly towards humans, who they have been known to chase down to sting. The only redeeming quality of these stinging pests is that although they’re sting-happy, their stings tend to be less painful than other wasp varieties. Phew! 

Unfortunately, you are more likely to stumble in the yellowjacket’s path than another variety of wasp. This is because while all wasps are predators and eat other insects, yellowjackets have displayed an attraction to garbage and human foods. Meat, rotten food, and sugary liquids are all appealing to a yellowjacket’s palate, frequently bringing them within an uncomfortably close range of humans. One of their favorite hangouts includes outdoor garbage cans where they can count on a free-for-all buffet of decomposing, rotting food scraps. 

Another reason yellowjackets are often within close proximity of humans is due to their nesting habits. Most varieties of wasp opt for high and hidden nests, choosing places like tree branches, gutters, and roof eaves. Yellowjackets, on the other hand, build nests low to the ground (or even in the ground) where humans can accidentally stumble into. Some popular nesting spots for yellowjackets include basements, abandoned gopher holes, and even the lids of garbage cans. They’re also known to build hives in particularly tricky spots, such as between walls (yes–your home’s interior walls.) At EcoShield we strongly recommend that you do not self-treat yellow jackets in wall voids since this may displace them into other areas of the home.

Yellowjacket nests

Yellowjacket nests are often hard to see, due in large part to their underground or otherwise hidden locations. That said, yellowjacket nests can grow quite large, often reaching the size of a basketball by the end of summer. They’re also typically grey or brown in color and only have one entrance. These entrances often look like a small, roughly one-inch-wide hole in the ground. If you suspect there is a yellowjacket in or near your home, contact EcoShield immediately. Do not attempt to treat for yellowjackets yourself. Yellowjackets are notoriously aggressive and can inflict a great deal of pain on those who try to remove them. 

Preventing wasps or yellowjackets from building nests can be tricky, especially for homeowners. The truth of the matter is, sometimes these sly stinging insects will find a way, despite taking all suggested precautions. Yellowjackets can be especially difficult to prevent due to their nesting habits. However, there are a few universal tips that may help dissuade wasps from building their home near your home:

• Remove potential food sources from the property. Fruit fallen from trees, hummingbird feeders, and even pet food can all attract a variety of pests. 
• Eliminate entrances to your home. Closed doors and windows are only half the battle. Be sure even the smallest of cracks and crevices are sealed to prevent wasps from entering your home. 
• Fill any holes in the ground. This is key in preventing yellowjacket nests, though difficult to do if you have a large property.
• Seal outdoor trash cans and compost piles. Rotting food, especially meats and sweets, are like an all-you-can-eat buffet to wasps and yellowjackets. 
• Discard trash immediately. Food and drink left out on decks or porches are like magnets to stinging insects. 

Getting rid of yellowjackets safely 

If you discover a hive in or around your property, we urge you to not attempt to treat it yourself. Whatever stinging variety may have built it, they will certainly come after you if you try to knock it down. Please remember that while not all wasps are naturally aggressive, every wasp variety will attack when their nest is disturbed. They will chase after you in numbers attempting to sting you multiple times. This could be a very dangerous (and painful!) situation to be in and is NOT recommended. 

Instead, if you happen across a nest, call an experienced pest professional like EcoShield Pest Solutions immediately. Proper identification of the specific wasp you’re dealing with is key in removing the nest and preventing their return. Removing wasp or yellowjacket nests can be risky and is best left to professionals. For the safety of you and your family, call EcoShield Pest Solutions at the first sight of a nest in or around your home. EcoShield's trained professionals can remove nests as high as the second story of your home and come equipped with protective safety gear and extensive training in safe removal protocols. EcoShield also covers stinging insects such as wasps and yellow jackets as part of our Shield Home Protection plan, and a one-time wasp removal service is also available.

Call us today to safely remove a nest on or around your home or fill out the form on this page. 

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