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1-Gallon Concentrate Garden Insect Killer

Ratings & Reviews for Sevin 1-Gallon Concentrate Garden Insect Killer

3.7
117
Review
 3.7 out of 5
117 Reviews


74% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

The product appears to be an effective insect killer that successfully eliminates a variety of garden pests. Many users report it effectively controls insects like Japanese beetles, ants, fleas, and ticks, with fast-acting and long-lasting effects. However, some express concerns about its potential impact on beneficial insects and its strong odor. A few found it ineffective against certain pests or received less concentrate than expected. Overall, the product seems to be a reliable tool for controlling harmful insects in home gardens, though users should follow instructions carefully and consider environmental impacts.

Customer review summary generated by AI, including incentivized reviews.
117 Customer Reviews

Didn't work at all - waste of my time and money!

Would Not Recommend

I tried product for the first time 1-2 weeks ago and it FAILED miserably!.....I have ants in my yard and following the listed directions, I applied your product accordingly...It made the "colonies" immobile for 2 days and then, they came back with a vengeance!....I then increased the amount over the next 1-2 weeks for each additional application of your product almost to the point of putting it on straight from the container and guess what?, even checking today 10-24-2018, the ants have gone no-...

October 24, 2018

From gardentech.com

Response from gardentechpwr

Hi - We sincerely apologize for your negative experience with our product. Please contact our customer service department toll-free at 1-866-945-5033 ...

gardentechpwrMay 7, 2026

Works for Lanternfly

Would Recommend

My maple trees were loaded with Lanternflies. In order to reach the high branches, I stood on a ladder and used the 32 oz bottle as the "soap" in my power washer, using the low pressure soap setting, The flies immediately dropped when hit by the spray. When they hit the ground they walked around a bit, more sluggish than usual. They started walking back toward the tree and started climbing back up, again more sluggish than usual. I was a bit disappointed. But then about 20 minutes later they sta...

October 15, 2018

From gardentech.com

Response from gardentechpwr

Hi Bob G, Glad to hear our Sevin Insect Killer Concentrate handled your laternfly problem! Cheers to pest free Maple trees. Thanks!

gardentechpwrMay 7, 2026

Lanternfly

Would Recommend

Works great on the lanternfly. Doesn't kill immediately but you can tell it's working. Once the lanternfly comes in contact they being to appear drunk then die.

September 6, 2018

From gardentech.com

Response from gardentechpwr

Hi Homeowner, Thank you for sharing your review with us!

gardentechpwrMay 7, 2026

Doesn't kill

Would Not Recommend

Have white fly problem and even spraying directly on them does nothing. Even increased concentration with no effect. Don't Waste your money!

August 25, 2018

From gardentech.com

Response from gardentechpwr

Hi HSB, We apologize for your negative experience with our product. Please contact our customer service department toll-free at 1-866-945-5033 so we ...

gardentechpwrMay 7, 2026

Not anymore

Would Not Recommend

I have used Sevin for many years and was my go to when I needed pest control. We moved to a new home and had an ant problem outside. Big carpenter ants, Small hairy ants ....the works, I was out of the usual red Sevin bottle so I picked up a new bottle at the hardware store. I sprayed 3x work a week and nothing slowed them down I soaked the hills and the next day business, as usual I sprayed the trails, directly on the ants...Nothing! I had to go to something else to get rid of these ants. New f...

August 17, 2018

From gardentech.com

Response from gardentechpwr

Hi JD, Thanks for letting us know. Hearing about your experience is important to us as we truly appreciate your business over the years. We hope you'...

gardentechpwrMay 7, 2026

Eliminated my chestnut weevil worms

Would Recommend

Sprayed the trees weekly each August, nuts are worm-free.

August 12, 2018
Sweepstakes
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Question ...

Would Recommend

I have used this product for many years to treat fire ants. It has always done a wonderful job! However, I just bought a new bottle, mixed it in a gallon bottle as usual. The usual thing I would see is the liquid would be white when I treated the mounds. This new bottle pours out of the gallon bottle (when mixed with water) practically clear. I thought maybe I forgot to add it! But, I know I did. I did shake the concentrate and measure as usual.... Is it now almost clear when mixed? The liquid f...

August 4, 2018

From gardentech.com

Effective and easy

Would Recommend

Easy application that is very effective. I use it to protect many plants, but primarily a fence line of Serviceberry that usually gets destroyed by Japanese Beetles. This has done a great job of killing the beetles.

July 9, 2018

From gardentech.com

Response from gardentechpwr

Hi Matt, We're pleased to learn you enjoyed how user friendly and effective our Sevin Insect Killer Concentrate is for customers. Thank you for provi...

gardentechpwrMay 7, 2026

This product does not work

Would Not Recommend

Way back in the day, you spray Sevin on something, and the bugs were gone. They must have changed the formula, because now it is safe for gardens also, but the only downside, is it doesn't kill anything. We've even sprayed plants every day, then come home the next day, and the japanese beetles and other bugs are right back at it again eating our plants. There has to be some compromise between the highly toxic old Sevin product that actually worked, and this new product that does not do anything....

July 8, 2018

From gardentech.com

Response from gardentechpwr

Hi Steve, Thanks for letting us know. Hearing about your experience is important to us. We hope you'll consider giving us a call at 1-866-945-5033 so...

gardentechpwrMay 7, 2026

I will continue to use this product

Would Recommend

If used properly I've had great success with bug control on my vegetable garden

June 30, 2018

From gardentech.com

Wow the bug/flys are dead 99% anyway...

Would Recommend

Three month of protection, so I'm thinking the dust cloud of whiteflies that I did have, and now the occasional one -- is some that will still be killed, but I gonna keep a close watch, on those grass browning critters, anyway.... Had a very old and the least expensive water siphon sprayer, so I had to dilute, the Sevin, to make the water siphon sprayer work, but I still put on the recommended amount per gallon of water; it was fairly easy; done in a short amount of time: approximately 5000 sq. ...

June 30, 2018

From gardentech.com

I have added this product to my arsenal

Would Recommend

I am now usually this product to combat my Japanese beetle problem. It is quite effective and mixes well with the fungicides that I use. The old formula (carbaryl) doesn't seem to really slow down the beetles, which can be a destructive force in my vineyard.

June 25, 2018

From gardentech.com

The new Sevin is definitely an improvement.

Would Recommend

Works great!! Is keeping the dreaded squash vine borer at bay. Plants look great and very healthy after application.

June 8, 2018

From gardentech.com

Response from gardentechpwr

Hi Bluetooth, We're thrilled you're happy with our Sevin Insect Killer! Thank you for sharing your feedback with us.

gardentechpwrMay 7, 2026

Yes yes yes

Would Recommend

Love it

June 6, 2018

From gardentech.com

Response from gardentechpwr

Hi Garden Queen, We're happy you love it! Thank you for sharing your feedback with us.

gardentechpwrMay 7, 2026

I will use this product again!

Would Recommend

I Have a bedbug problem, I did a test on a small area and it killed the bugs in about 5 seconds.

March 19, 2018

From gardentech.com

Works Great

Would Recommend

Japanese Beetle infested Orchard

March 12, 2018

From gardentech.com