Martin's Insect Growth Regulator, 4-fl oz bottle

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$21.29 Chewy Price
($5.33 /fl oz)
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$31.04 List Price
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About This Item

Details

  • Made in the USA!
  • Features 1.3% pyriproxyfen.
  • Inhibits reinfestation of fleas for up to 7 months.
  • Inhibits larvae from advancing to adults in fleas, roaches, flies, mosquitoes, gnats, crickets, litter beetles and ants.
  • One ounce per gallon of water will treat 1,500 square feet!

Ingredients

Instructions

Frequently bought together

Questions & Answers

4 Customer Questions

After mixing the 1-ounce ampule with 1 gallon of water, how long will the mixture remain stable and usable?

Can you put this in just a regular spray bottle like one you would use for hair?

Is this safe around cats?

Answer by Chewy • Aug 03, 2025
It’s safe for use on carpets, rugs, furniture and draperies and in poultry houses, animal quarters, kennels, doghouses and warehouses.

Would this work on Asian roaches?

Answer by Chewy • Jun 11, 2025
This product inhibits larvae from advancing to adults in fleas, roaches, flies, mosquitoes, gnats, crickets, litter beetles and ants.
Reviews
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4.6
Rated 4.6 out of 5 stars
17 Ratings
Terms & Conditions

7 Customer Reviews

Rated 5 out of 5 stars
By Miyoshia on Jan 3, 2026

IGR GREAT

The Martins growth regulator is well worth the money. Sprayed every day, each day saw less fleas, and less water bugs.

The Martins growth regulator is well worth the money. Sprayed every day, each day saw less fleas, and less water bugs.

Rated 5 out of 5 stars
By Lois on Jun 24, 2025

20 years experience using IGR

We have found IGR spray to be extremely effective! Pure IGR (pyripoxyphen) is safe for animals or humans. Caution: some sprays also contain a toxic pesticide. We

We have found IGR spray to be extremely effective! Pure IGR (pyripoxyphen) is safe for animals or humans. Caution: some sprays also contain a toxic pesticide. We initially had a serious problem with fleas; tried the IGR based on a friend's recommendation. We sprayed everything, floors, carpets, baseboards, pet beds. Since then we have moved a couple of times, and sprayed the next house with IGR...just once with the same excellent result. Of course, careful vacuuming has been important too. Now we live with a dog and two cats, but since using IGR, but none of our animals has ever had a single flea!

Rated 5 out of 5 stars
By larryjcampos on Aug 10, 2025

Delivery items

Can’t find it anywhere in Clovis nm

Can’t find it anywhere in Clovis nm

Rated 5 out of 5 stars
By Debra on May 17, 2025

Plant based

Works pretty good at killing fleas

Works pretty good at killing fleas

Rated 4 out of 5 stars
By Trailhiker on Oct 26, 2024

I think it works?

Can't tell for sure, but think it works OK. Word of advice - don't ship with heavy items. One of our 1oz packages opened up and leaked pesticide onto our chicken

Can't tell for sure, but think it works OK. Word of advice - don't ship with heavy items. One of our 1oz packages opened up and leaked pesticide onto our chicken scratch packaging. .. yuck!!!!

Rated 4 out of 5 stars
By TOM on Nov 6, 2024

Martin's IGR

This product seemed to work quite well against fleas in the house. Thank you Martin's IGR and Chewy :)

This product seemed to work quite well against fleas in the house. Thank you Martin's IGR and Chewy :)

Rated 5 out of 5 stars
By Patrice on Apr 29, 2024

I think it works

I sprayed every inch of my apartment. I didn't get bit for 8 days. Then it started again so I'll re-treat.

I sprayed every inch of my apartment. I didn't get bit for 8 days. Then it started again so I'll re-treat.