Have you got spider wasps buzzing around in your garden? This article will help you find spider wasp nests, and also tell you why you might not need to eliminate them after all
Spiders are one of the scariest insects on earth. They look intimidating, and their venom is poisonous, especially the big ones, like tarantulas.
If you are scared of spiders, there is one common garden insect that can help you get rid of a spider infestation in no time – the spider wasp.
These wasps are excellent at helping you get rid of spiders naturally. But is it safe to let them roam your garden? Let us find out.
What Are Spider Wasps?
Spider wasps belong to the Pompilidae family. They are commonly known as pompilid wasps or simply pompilids.
These insects are known for their excellent hunting abilities.
They are experts at killing dangerous free-living spiders like wolf spiders, tarantulas, jumping spiders, and more.
Unlike social wasps like yellow jackets, these insects do not live in colonies. They are solitary wasps.
These are one of the largest wasps in North America and can show an average growth of ¼ to 1½ inches.
Adult spider wasps can be identified by their long and spiny legs; Their bodies are usually black, brownish, or blue-black with yellow bands.
The wings are mostly clear or dark, like the body.
Hawk wasps (tarantula hawks), rusty spider wasps, and black-banded spider wasps are a few common species of this family.
Where Do They Live?
Spider wasps are found in large numbers in North America and Mexico. There are around 300 species of spider wasps in these regions.
These wasps can thrive in a variety of habitats.
There are a few species that are usually found in places with loose soil because they live underground.
Since adult wasps are known to hunt spiders, they prefer to be around areas with abundant spider populations.
The female wasp usually hunts these spiders and drags them to the nest or burrow to feed the wasp larva.
You also find these species of wasps flying around flower gardens and wildflowers, as the adults rely on nectar to fulfill their diets.
What Do They Eat?
The spider wasp larvae are carnivorous; they consume the spider prey captured by the mother spider wasp.
They provide enough protein and other nutrients to help the larva grow into a healthy adult.
Various species of spider wasps hunt free-living spiders like crab spiders, tarantulas, and more.
Some species are also experts in hunting other web-creating spiders like orb weavers, funnel-web weavers, etc.
Fascinatingly, adult spider wasps aren’t carnivorous themselves – they have a herbivorous diet.
These insects rely on sweet flower nectar, honeydew, and fruit juices to survive and get energy.
What Do Spider Wasp Nests Look Like?
Various species of spider wasps have different nesting habits.
Some of these species prefer to occupy abandoned mud nests of thread-waisted wasps, like mud daubers.
Others prefer to build burrows or occupy nests built by potter wasps.
The ones who build their own nests usually construct them in rock crevices or rotten wood.
The ones who dig burrows prefer places with loose soil.
You can find them in areas with abundant spider populations. The male prefers to occupy territories that boast a good amount of spiders and flowers to fulfill the dietary requirements of the larvae and adults.
Spider Wasp Life Cycle
Spider wasps are solitary; They build individual nests. Here, the males hold territories, and during the mating season, they wait for the receptive female to enter the area.
Once mating is done, the females start searching for spiders.
You will be fascinated to know that various types of spider wasp species prefer hunting a specific type of spider. The female stings the spider and paralyzes it.
She then drags the paralyzed spider to the nest.
As mentioned above, these nests can be underground burrows, mud cells, or pre-existing nests of mud daubers or potter wasps.
At times, the female snips off the limbs of the spider to make it easier to drag it to the nest. One spider is kept for each egg.
The larva consumes the huge spider step by step to growing big enough to start pupating.
Here is a unique fact- the wasp larvae avoid eating the vital organs of the spider until it reaches the final growth stages. This keeps the internal organs fresh.
After devouring the paralyzed spider, it starts pupating inside a silken cocoon.
Usually, the insects overwinter as pupae before emerging as healthy adults.
As adults, they fly around flowers for nectar and to repeat the cycle.
How Spider Wasps Hunt Their Prey?
As we mentioned, these wasps are known to hunt down huge spiders like tarantulas, crab spiders, and more. Have you wondered how they take down these giant insects?
Spider wasps use the powerful neurotoxin to immobilize their prey. Some species kill the hunters as well.
These wasps run after their prey by continuously jerking their wings. On capturing the prey, they pierce the fangs to inject the venom into the abdomen to paralyze the hunt.
The paralyzed prey is then carefully dragged to the nest and kept with an egg. At times, the female snips off the legs of the hunt to easily drag them around.
How To Get Rid of Spider Wasp Nests?
Spider wasps may look intimidating, but they are not aggressive toward humans. These insects rarely sting or attack humans.
However, they are capable of delivering painful stings. These stings can trigger an allergic reaction in the body and can be lethal at times.
Apart from their stinging habit, these insects are harmless. In fact, these wasps are beneficial insects, as they help to eliminate scary spiders and are decent pollinators.
However, it can be scary to deal with painful insect stings. Also, if you are allergic to wasp stings, you must get rid of these spider wasp nests.
Here are a few tips and tricks to help eliminate them:
- Spider wasps are usually accidental invaders that enter your home by mistake. Therefore you must inspect the house thoroughly to find cracks and gaps that can ideal for these wasps to sneak in. If you find these cracks and gaps, seal them immediately. Doing so will keep the wasps away.
- If there are spiders around your house, get rid of them immediately. A home full of spiders gives an open invitation to these wasps. Clean areas with rotten wood to avoid a swarm of spiders. Also, keeping the interiors clean can help to keep the spiders at bay.
- You can use wasp traps to eliminate the nearby wasps. The traps have a liquid that attracts the wasp to come flying in. These wasps later get trapped and are drowned in the fluid. Keep cleaning the wasp trap to avoid swarming of dead wasps.
- You can also carefully scrap off the pre-existing mud nests of mud daubers and other thread-waisted wasps. Spider wasps usually use these nests to lay eggs. Simply scrape off the mud cells with a large hole. The hole indicates that the nest is empty.
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Frequently Asked Questions
How does a wasp spider reproduce?
Spider wasps are solitary and build individual nests.
After mating, females search for specific types of spiders to sting and paralyze before dragging them to their nests, which can be underground burrows, mud cells, or pre-existing nests of other wasps.
One spider is kept for each egg, and the larva consumes the spider to grow big enough to pupate.
The larvae avoid eating the vital organs until the final growth stages and then pupate inside a silken cocoon.
The insects overwinter as pupae before emerging as adults, which fly around flowers for nectar and to repeat the cycle.
What kills wasps instantly?
If you suspect a wasp infestation, identify the nest and wasp species before treating it.
Wear protective gear and use methods like nest drenching or dusting, perimeter spraying, baiting, homemade sprays, or traps to eliminate the infestation.
If you suspect a paper wasp infestation, contact licensed pest control personnel.
Take precautions to avoid contact with insecticides and always destroy the nest once all wasps are gone.
Why is it called spider wasp?
Spider wasps, also known as pompilids, are a type of solitary wasp in the Pompilidae family.
They are skilled hunters, known for killing dangerous spiders such as wolf spiders and tarantulas. They are one of the largest wasps in North America and can grow up to 1.5 inches.
Adult spider wasps have spiny legs and black, brownish, or blue-black bodies with yellow bands.
They do not live in colonies like social wasps. Common species include hawk wasps, rusty spider wasps, and black-banded spider wasps.
What smell kills wasps?
Certain scents and smells can keep wasps away, as they have a strong sense of smell.
Plants like peppermint, spearmint, basil, and eucalyptus, as well as scents like cloves, geranium, thyme, citronella, bay leaves, and lemongrass, can repel them.
Other options include vinegar, cinnamon, coffee grounds, and sliced cucumber.
Wrap Up
Spider wasps are known for their ability to hunt and consume massive spiders.
These insects use a strong neurotoxin to paralyze these giant pests and carry them to their nests for the larva.
They are beneficial because they naturally get rid of spiders and are decent pollinators. However, they can deliver painful stings that can trigger allergic reactions in the body.
Remember, these wasps will not attack unless they feel highly threatened.
Be careful around them and use the tips and tricks given in this article to eliminate spider wasps from your home.
Thank you for reading the article.