TERRO Wasp & Hornet Killer

TERRO Wasp & Hornet Killer 21 3.9 5 1
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  • Foam spray coats nest for complete kill
  • Powerful jet spray reaches nests up to 20 ft
  • For indoor and outdoor use
  • Water-based formula
  • Spray nest at sunrise or dusk when insects are least active
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Product Description:

Wasp & Hornet Can Label

Wasps and hornets strike fear in many, but with TERRO® Wasp & Hornet Killer, you can kill these dreaded pests on contact.

TERRO® Wasp & Hornet Killer is an entrapping foam spray that coats nests for a complete kill. The entrapping foam not only kills wasps and hornets inside the nest, but it also remains on the nest and kills unsuspecting insects that have the misfortune of returning.

Going the Distance

Nests are often located in hard-to-reach places, so you’ll appreciate that this wasp and hornet aerosol spray delivers a powerful jet spray that reaches up to 20 feet away. This also allows you to keep a safe distance away from the nest while spraying.


Treatment Tips

When treating nests, spray at sunrise or dusk when insects are least active. Stand a safe distance from the nest - do not stand directly underneath it. Spray the nest opening until soaked. Then spray the rest of the nest. The insects will fall to the ground and die.

After spraying, wait up to 24 hours before removing the nest.

Safe for Indoor and Outdoor Use

Protect yourself from wasps and hornets, indoors and outdoors, with TERRO® Wasp & Hornet Killer. Here are some tips on where to spray:

  • Use outdoors under eaves, near window frames, doorways, outdoor play areas and picnic areas.
  • Use indoor in attics and anywhere nests are built. Do not spray around exposed foods.
  • To prevent insects from entering home, use this wasp and hornet aerosol spray around areas where insects enter, such as gaps around outdoor plumbing and vents, cracks and crevices in foundations, and along sills and ledges.

View video for tips on how to get rid of wasps and hornets with TERRO® Wasp & Hornet Killer

TERRO® Wasp & Hornet Killer
Model Number T3300-6
Weight 1.5 lb
Dimensions 2.7 x 2.7 x 10.1 in
Includes 1 lb 3 oz aerosol spray can

Customer Reviews

3.9 out of 5 stars
21 Reviews
5% of customers
recommend this product
5 stars 6 (29%)
4 stars 11 (52%)
3 stars 0 (0%)
2 stars 2 (10%)
1 star 2 (10%)
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This product is AMAZING!!!!
Jun 8, 2024
This product is AMAZING!!!! The BEST spray to use on wasp and hornet nests. While you have to use just about the whole can to kill wasp and hornets this one takes just a spray to catch and kill the annoying insects. The foam is so good and not watery or runny like others I have used (and I have used several different ones). Even if you happen to catch a wasp or hornet mid-air flying they drop and are paralyzed. I only wish it wasnt discounted in the US or on amazon. Me and my neighbor both love it and miss it. BRING IT BACK!
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This product does not work ...
Jul 30, 2023
This product does not work as described. The spray foam does reach at least 8', foams up but does not kill wasps. I used it two days back to back, and yes I followed the directions. I was hopeful this would work after getting stung twice. Sadly I still have wasp entering the nest. Unfortunately I ordered 2 cans by accident from Amazon and I am not able to return the new/unused container
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Response from Admin
Aug 3, 2023
Thank you for sharing this feedback. We're sorry to hear that the desired results were not seen with this product. It has a one year replacement policy. If you are looking for a refund, we recommend reaching out to the retailer as we are unable to process refunds for items that were not purchased directly from our website. Reach out to us via the Contact Us page.
Not dependable
Aug 6, 2021
Does not work on hornets. Sprayed hornet nest days apart with 2 different cans of spray and they are still alive and well. Used product last year on yellow jackets with great results.
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Response from Admin
Sep 3, 2021
Thank you for taking the time to share this unusual experience. We apologize that the desired results were not seen and would like to learn more. This product is backed by a 30 day return policy and covered under a one year replacement policy. Reach out to us at 1-844-837-7644 for assistance. Lauren Online Consumer Experience Specialist
Five stars… All the way
Jul 7, 2020
This stuff is great! I have a lot of wasp nest in front and back of my home on when I spray the nest, The wasps stay away. I have recommended it to all of my family and friends and they love it as well. When I order… I Purchased a case and can enjoy free shipping as well It was a marvelous find for me And my family and friends.
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Produces a useless fog
Jun 26, 2018
Useless. I needed to get at a nest that was about 10 feet overhead. This stuff came out like a cloud of spray paint, went less than 8' and then started drifting back at me. Thankfully, I had a can of another brand in my coat pocket, just in case. The other product worked exactly as advertised, easily shooting 16 - 20 feet and taking out the nest I needed to kill. I've used lots of foam and "stream" wasp & hornet sprays over the years and they all worked great. I might guess that I got a defective can, but other reviewers had the same comment I did. So, either Terro has terrible quality control or a defective design.
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Woodstream (Admin)
Jun 26, 2018
Hello Tony,Thank you for providing this feedback! We are very sorry to hear of this unusual experience and would like to learn more about what occurred. For further assistance, please contact us directly. Our Consumer Relations Team can be reached at 800-800-1819 x 458. We are happy to help!
Great product
Jul 30, 2017
Bought this product to get rid of a ground wasp problem. As soon as I sprayed it in their holes they are dead and not back any longer. This stuff definitely works great!
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At a safe distance
Dec 3, 2016
This is a great product. The foam spray has enough range, so you can safely spray wasp nests and make a speedy getaway if necessary. As far as I can tell, it also has a 100% mortality rate. Best. Products. Ever.
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excellent product
Aug 14, 2016
I sprayed a hornets nest that was larger than a softball 8 days ago and have seen a hornet since then. I completely covered the nest with foam and after it dried it couldn't believe it worked so good. I'm 76 years old and if I can make it work anyone can
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Wish it sprayed further
Aug 10, 2016
I bought two cases and have used several cans so far. It does not spray as far as other brands and it sprays in too wide of a pattern. If there is any wind at all it goes all over instead of reaching the nest. Up closer 8 ft - 10 ft it will foam a nest over pretty good, but you still see the wasps crawling around for several minuets. I'm kind of disappointed in it. I am allergic to to bees, wasp, hornets and I wanted something that sprayed 20 ft or so and would encapsulate the nest killing them instantly. 8-10 ft makes me nervous spraying the nest. There was another brand that worked better that is no longer produced, if terro wants to know about it email me an I will give you the name of the discontinued competing product.
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Woodstream (Admin)
Aug 10, 2016
Hello Gary, We appreciate the time taken to provide this feedback and apologize for the experience. This product should spray up to 20 feet away. If there is wind, make sure you are spraying with the wind to your back to avoid spray drift. Please give our Consumer Relations Team a call at 800-800-1819 x 458 for additional assistance.
Shipping arrived on time.
Jan 26, 2016
Great service. I know the active ingredient and sought it out.....finally found Terro. Bought two cans of the wasp and hornet.. Terro termite killer is great and I'm guessing this stuff will be too as they chose the correct active kill chemical.
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