MGK Onslaught® Microencapsulated Insecticide | Indoor/Outdoor Pest Control Concentrate for Food or Non-Food Areas | Cockroach Killer | Long-Lasting Residual Control | 16 Ounces
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Availability:
In Stock.
Arrives
Tuesday, Jun 9
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Features
- TARGET PEST POPULATIONS: Kills a broad spectrum of pests which include ants, biting flies, cockroaches, fleas, mosquitoes, scorpions, spiders, ticks, wasps and yellowjackets.
- CONTROLLED-RELEASE TECHNOLOGY: Concentrated formula spray that delivers long-lasting residual control of a wide variety of pests.
- USE IN INDOOR AND OUTDOOR SPACES: Suitable for use around homes, office buildings, livestock facilities, and on turf, ornamentals and landscapes.
- EASY TO APPLY: Mix Onslaught with water and apply with a hand-pressurized or power-operated sprayer. Shake concentrated formula before diluting for best results.
- A LEGACY YOU CAN TRUST: Driven by expertise and industry commitment, MGK has been developing pest control products based primarily on botanical and innovative technologies since 1902.
Description
Onslaught Micro-encapsulated Insecticide Concentrate MGK1002 16_ounce
Item Form: Spray
Item Weight: 0.01 Ounces
Liquid Volume: 16 Fluid Ounces
Brand: MGK
Target Species: Insects
Brand Name: MGK
UPC: 810096032614
Part Number: 43237-2
Model Number: 43237-2
Unit Count: 16.0 Fluid Ounces
Included Components: 1 bottle
Manufacturer: MKG
Item Form: Spray
Target Species: Insects
Item Weight: 0.01 Ounces
Liquid Volume: 16 Fluid Ounces
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Jun 9
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Amazing product! I use as directed and spray the perimeter of my house, eaves, and around the windows. We have so many Box Elder bugs and Asian Beetles in our neighborhood which are no longer a problem for us and no longer sneak into the house in the fall. A few years ago, after spraying, there were hundreds of dead Box Elder bugs laying on my deck that had crept out of of crevices. Since then the amount of bugs I even see around the house is drastically reduced. This year, my son's house had millions of baby Box Elders around his shed and landscaping. Immediately solved that problem and this fall, I saw just a couple adults that were on his house. It kills spiders etc. too, and works a long time due to its residual potency. Neighbors hire pest control companies to spray, but I save hundreds by taking 20 minutes and doing it myself. One bottle lasts several seasons. Bonus: No strong odor.
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Reviewed in the United States on December 6, 2025 by Kelly W.
Firstly, I don't like using insecticides. I avoid it for as long as possible. I'm always worried about what else it's also killing that I can't see or didn't know about. And if the birds etc eat a bunch of dead ones treated with this will it kill the birds? That being said, we were literally being overrun by grasshoppers, like a plague level amount. Plus we had open fields on two sides of our house, so it was really disgusting. The breaking point was going for a walk with my wife and the swarms that would rise up and land on us was enough. I bought this stuff, and just used a one gallon sprayer so that I could be more selective and I would walk around spraying the grasshoppers only, not just a soak it all down treatment. I also mixed up two spray bottles that we left on the front and back porches so when they'd get on the potted plants you could give them a squirt. You can see that this goes to work on them very fast. After being sprayed they are dead in less than an hour I'd guess, I didn't time it. Within three days we had noticeably fewer grasshoppers around. After two weeks they were back to normal levels. Very happy with the price for the amount of killer you're able to get out of this bottle.
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Reviewed in the United States on December 4, 2024 by James M.
My wife, daughter and I moved into a home in the woods last fall which previously also had a trailer on the land which was left unoccupied and uncared for for 10+ years before it was bulldozed. The neighbors told me that the guy who bulldozed it had to be sent to the hospital due to wasp stings since the trailer was infested with them. Last fall, when we had a warm streak peaking temperatures in the mid 90s, I learned that those wasps had taken up residence in my attic and the surrounding woods. I killed over 100 wasps per day for a week with a fly swatter and a can of bug spray - the wasps did not seem to decrease in numbers even with my killing spree. I ordered this product along with another product called Taurus SC (Fipronil) from Amazon after Terminix failed to do anything that even remotely improved the issue. After spraying both products along my eaves, windows, and foundation, I noticed a marked decrease in activity within 24 hours. After one week, wasp activity had decreased by more than 90%. This spring, I started early and sprayed both products along the same areas of my house. I've not seen a single wasp crawling into my attic vents and what wasp activity I do see is limited to one or two wasps per day which I chalk up to foraging activity from nests deeper in the woods. They absolutely steer clear of my house now. As an added bonus, this combination of products has kept out ants, fleas, and scorpions (all my neighbors have them in their houses this year) so far through this year. It also seems to have a favorable effect on mosquitoes and spiders. I keep referencing the combination of products as I can't pinpoint which is 'more' effective. What I can say is that I bought both of them with a notion of a 1-2 punch: Onslaught kills the live creatures effectively and Fipronil (http://www.amazon.com/gp/product/B0058DGMKG?psc=1&redirect=true&ref_=oh_aui_search_detailpage) is a baiting agent acting as a neuro inhibitor which community insects take back to the nest. For some additional anecdotal praise; My wife is a Real Estate Agent and visits, sometimes, dozens of houses in a day. This time of year, she goes equipped with wasp and hornet spray as nearly all houses in our area (even nice, occupied homes) have wasps buzzing around the doors. I knew this product (and the accompanying product) were successful when she told me she doesn't have to worry about wasps when she comes home. Now that's an endorsement! For reference, I live in the West River Valley region of Arkansas. The wasps I had problems with were Red Wasps, Yellow Jackets, and Ground Hornets. I only applied this product externally, though it's labelled as safe for interior use. I spray both products once every 30 days. I mix each of the products separately, as I do not know if they would maintain efficacy combined in a single solution and am not interested in breaking what's working. :)
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Reviewed in the United States on June 27, 2015 by Keefer Milton
Use dit and it worked great. Dried quick and found a lot of dead bugs after spraying. Price is good for the money
Reviewed in the United States on October 31, 2025 by Jose garcia
Works. Sprayed in January. Now that it’s starting to get warmer i see all sorts of roaches trying to make their way into my house just to end up dead a few feet past my entrance. The residual affects are pretty good. Only thing i don’t like is the horrible smell. But once dry everything is good.
Reviewed in the United States on March 1, 2025 by quadre
Initially didn’t seem to be working but after a couple weeks it was working well
Reviewed in the United States on July 27, 2025 by Amazon Customer
The product works well and no odor fast delivery, thanks
Reviewed in the United States on November 2, 2025 by Victor
I mixed this with another product and let me tell you, this thing works. I was dealing with a BAD roach infestation in an apartment I moved into and the leasing office did nothing to help. No treatment they provided, any pest control service or any other product I tried worked. I was so feed up I turned to science. I looked up actual research on killing roaches 😂 I knew I had to target the adults, eggs, babies, AND make them infertile so they can't reproduce. It also needed to be residual. Based on the research papers, I jotted down the chemicals proven to do this and then turned to Amazon - searching for products that contained them in high yet safe amounts. I ordered this product and another, mixed them and prayed for the best. This not only got rid of the roaches in my apartment, it eradicated the ENTIRE BUILDING. We went from seeing roaches everywhere to not a single one for 2 years. My neighbors said their roaches just stopped showing up. I knew why. After that, I took this with me to any apartment I moved to. I sprayed before settling in and would see dead bugs belly up within 24 hours and never see them again. Even cockroaches that tried coming in from the mulch would be dead once those feet crossed my line of death. I swear by this stuff and will use it forever.
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Reviewed in the United States on January 5, 2023 by nylalauren.com