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 Sevin Insect Killer Liquid 1 pt

Ratings & Reviews for GARDENTECH Sevin Insect Killer Liquid 1 pt

3.7
218
Review
 3.7 out of 5
218 Reviews


73% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

Customers praise the product's broad-spectrum pest control, reporting dramatic reductions in Japanese beetles, ants, stinkbugs, leaf miners, and spider mites within days. Many describe plants recovering with vibrant growth after application. However, a notable group reports diminished effectiveness compared to past performance, with some noting the formula appears clearer rather than milky white. Several mention the application is time-consuming and physically demanding. While most customers find the results worthwhile, some express frustration with inconsistent outcomes and concerns about formula changes.

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

Sevin insect killer concentrate

Would Recommend

[This review was collected as part of a promotion.] I absolutely love this product. I have always just used water and soap in a spray jar to spray my vegetables in my garden and it works most of the time but we still have bugs. I use this product a couple of times now and I have not seen any bugs in the garden at all. I am so happy that I won't have to throw away any vegetables that we're half-eaten by bugs. I will be purchasing this from now on for my garden

May 1, 2019

From Central Garden & Pet Company

works great

Would Recommend

[This review was collected as part of a promotion.] Very easy to use. Simple instructions and it did the job quickly. After a couple days the usual pest have disappeared. Amazing product.

May 1, 2019

From Central Garden & Pet Company

Fantastic product!

Would Recommend

[This review was collected as part of a promotion.] I love gardening but I'm scared to death of bugs. This spray works so well. I started it about a week ago and I have zero ants and bugs on my flowers!! I'm so shocked. Usually my garden is full of insects but this did the trick. It also didn't harm my flowers. What I also love is that this is a concentrate so you get so much more for your money.

April 30, 2019

From gardentech.com

Fantastic product!

Would Recommend

[This review was collected as part of a promotion.] I love gardening but I'm scared to death of bugs. This spray works so well. I started it about a week ago and I have zero ants and bugs on my flowers!! I'm so shocked. Usually my garden is full of insects but this did the trick. It also didn't harm my flowers. What I also love is that this is a concentrate so you get so much more for your money.

April 30, 2019

From Central Garden & Pet Company

Finally! Something that works!

Would Recommend

[This review was collected as part of a promotion.] This you can use as much or little as you need - there's a guide telling how much for what type plant. I also learned adding a couple caps fulls to 2 gallons of water is sufficient to kill rather large ant colonies within 24 hours. I have had an ant problem for a few years now, and finally I have something that works!

April 27, 2019

From gardentech.com

Finally! Something that works!

Would Recommend

[This review was collected as part of a promotion.] This you can use as much or little as you need - there's a guide telling how much for what type plant. I also learned adding a couple caps fulls to 2 gallons of water is sufficient to kill rather large ant colonies within 24 hours. I have had an ant problem for a few years now, and finally I have something that works!

April 27, 2019

From Central Garden & Pet Company

Great for spiders

Would Recommend

[This review was collected as part of a promotion.] Sevin Insect Killer has been amazing so far. With it getting warmer here in North East Ohio the spiders that have been finding there way into my house is crazy. I have been looking for something that will kill them and also keep them away. We sprayed this insect killer all around the outside of the house and also around my basement walls. After a couple days I have noticed I haven't seen as many spiders and definitely found a ton of dead ones i...

April 26, 2019

From gardentech.com

Great for spiders

Would Recommend

[This review was collected as part of a promotion.] Sevin Insect Killer has been amazing so far. With it getting warmer here in North East Ohio the spiders that have been finding there way into my house is crazy. I have been looking for something that will kill them and also keep them away. We sprayed this insect killer all around the outside of the house and also around my basement walls. After a couple days I have noticed I haven't seen as many spiders and definitely found a ton of dead ones i...

April 26, 2019

From Central Garden & Pet Company

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 ...

gardentechpwrJuly 23, 2026
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 ...

gardentechpwrJuly 17, 2026

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 Central Garden & Pet Company

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 ...

gardentechpwrJanuary 18, 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!

gardentechpwrJuly 23, 2026
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!

gardentechpwrJuly 17, 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 Central Garden & Pet Company

Response from gardentechpwr

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

gardentechpwrJanuary 18, 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!

gardentechpwrJuly 23, 2026
Response from gardentechpwr

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

gardentechpwrJuly 17, 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 Central Garden & Pet Company

Response from gardentechpwr

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

gardentechpwrJanuary 18, 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 ...

gardentechpwrJuly 23, 2026
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 ...

gardentechpwrJuly 17, 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 Central Garden & Pet Company

Response from gardentechpwr

Hi HSB, We apologize for your negative experience with our product. Please contact our customer service department toll-fr...

gardentechpwrJanuary 18, 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'...

gardentechpwrJuly 23, 2026
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'...

gardentechpwrJuly 17, 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 Central Garden & Pet Company

Response from gardentechpwr

Hi JD, Thanks for letting us know. Hearing about your experience is important to us as we truly appreciate your business o...

gardentechpwrJanuary 18, 2026

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

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 Central Garden & Pet Company