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STEM Wasp and Hornet Killer Spray 10 oz

STEM Wasp and Hornet Killer Spray 10 oz

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

Odorless, plant-based spray that knocks out wasps, hornets, and yellow jackets and keeps working after it dries.
Stem MPN 03283 In Stock & Ready to Ship
Local Price Check i Local stores may price this as low as $7.99. Our online price is $8.59.
$8.59
Free shipping on orders over $75
Ships within 24 hours · most orders arrive in about 2 business days
Cases of 6 · Order in multiples of 6

Sold by the Case

$51.54 per case of 6

Save $7.74 on orders $75+. Spend $75 or more to unlock 15% off cases plus free shipping — applied automatically at checkout.

Ships as a complete case of 6. Free shipping on orders $75 and up.

About Product Overview

STEM's Wasp/Hornet/Yellow Jacket Killer takes on nest-building pests around porches, eaves, and sheds using geraniol and lemongrass oil instead of harsh chemical fumes. It's ready to use straight from the can, with a spray pattern built for outdoor jobs, and it leaves residual protection behind so new arrivals don't set up shop. Odorless application means you're not left smelling like bug spray after the job's done, and the formula is rated safe around kids and pets once treated areas are dry - just keep it off anything you plan to eat.

  • Active ingredients: Geraniol and lemongrass oil
  • Kills wasps, hornets, and yellow jackets
  • Ready-to-use aerosol spray, 10 oz can
  • Residual protection after application
  • Odorless formula, safe for children and pets
  • For outdoor use only; not for use on edibles

The Details Specifications

Special Handling Special handling and shipping requirements apply. UN #UN1950.
Brand Stem
UPC 046500032837
Case Pack Quantity 6 per case
Retail Unit Quantity 6
Dimensions (L × W × H) 8 × 5 × 10
Weight 5 lbs
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
Price check

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When you're over there, check four things before you click buy.

01

Who's actually selling it

The brand name is on the listing. A different company is in the seller field. Those aren't the same thing, and the second one is who you're buying from.

02

Whether the warranty survives

Most manufacturers only honor a warranty when the unit came through an authorized dealer. We're authorized for Stem. A third-party marketplace seller usually isn't.

03

Where the box came from

Gray-market stock, returns repackaged as new, and outright fakes move through marketplaces constantly. It all looks identical in the photo. It stops looking identical when it fails.

04

Who you call when it breaks

Ours is a phone number with a person behind it who has held this product. M–F, 6 AM – 5 PM Pacific. (866) 469-8556

We're not always the cheapest.

Sometimes you'll find it for less. Sometimes you'll find it for more. On a lot of brands the number is identical everywhere it's sold legitimately — the manufacturer sets a minimum advertised price and every authorized dealer holds it. When a price sits well under that, it's worth asking why before it's worth celebrating.

How pricing actually works
Authorized dealer · Stem

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