Precor IGR Concentrate - 10-1oz. Bottles

Product questions and answers

How long does Precor IGR take to work?

0 votes

Q How long does Precor IGR take to work? answer now
Asked on December 15, 2025 4:46 PM

A Precor IGR begins working immediately after application, but because it is an insect growth regulator, results are not instant in the way a contact insecticide works. Instead of killing adult insects right away, Precor IGR stops flea eggs and larvae from developing into biting adults. Most users notice a significant decline in new flea activity within 7–14 days, which aligns with the flea life cycle. When used alongside an adulticide, full control is typically achieved within 2–3 weeks, as existing adults die off and no new fleas are able to mature.

What is the correct mix rate of Precor IGR for flea control?

0 votes

Q What is the correct mix rate of Precor IGR for flea control? answer now
Asked on August 20, 2025 4:12 PM

A The mix rate of Precor® IGR Concentrate (Methoprene 1.2%) depends on the size of the treatment area: Standard Indoor Treatments: Mix 1 oz of Precor IGR per 1 gallon of water, which will treat up to 1,500 square feet of surface area (carpets, rugs, upholstery, pet bedding, and flooring). Large Areas or Heavy Infestations: For larger areas, increase the amount proportionally (for example, 2 oz per 2 gallons of water covers up to 3,000 sq. ft.). 👉 Precor IGR works by interrupting the flea life cycle, preventing eggs and larvae from developing into biting adults. It does not kill adult fleas, so for best results, use it in combination with an adulticide (such as a flea spray or residual insecticide). Always read and follow the product label directions for safe and effective use.

How can I tell if I have fleas?

0 votes

Q How can I tell if I have fleas? answer now
Asked on July 27, 2025 12:55 PM

A
When looking for fleas, there are a few key signs to watch for. The most obvious is bites on your body, especially around the ankles. You might also notice fleas jumping on floors, carpets, or bedding. Additionally, if your pets are scratching more than usual, check their fur by parting it to spot any fleas. If you find fleas, it’s time to tackle these pesky pests. Precor IGR can help interrupt the flea life cycle and works best when paired with an adulticide like Alpine WSG. For detailed instructions on how to get rid of fleas, check out our How To Instructions page.

Does Precor IGR stain?

0 votes

Q Does Precor IGR stain? answer now
Asked on August 30, 2023 3:41 PM

A
Generally, Precor IGR does not stain, but it is best to try a small amount on an inconspicuous area first to check for possible staining.

How much will one gallon of diluted Precor concentrate treat?

0 votes

Q How much will one gallon of diluted Precor concentrate treat? answer now
Asked on August 30, 2023 3:35 PM

A
1 gallon of water mixed with 1 ounce of Precor IGR concentrate will treat up to 1,500 square feet of surface area. You will want to use a low-pressure sprayer with a fan tip.

Can Precor IGR be tanked mixed with other insecticides?

0 votes

Q Can Precor IGR be tanked mixed with other insecticides? answer now
Asked on August 30, 2023 3:30 PM

A
If needed, Precor IGR can be tanked mixed with other insecticides that are labeled for flea control.

Do I need to do anything else before using Precor IGR?

0 votes

Q Do I need to do anything else before using Precor IGR? answer now
Asked on August 30, 2023 3:22 PM

A
Before using Precor IGR concentrate, make sure to vacuum all carpets and rugs a least twice and make sure to clean the vacuum after each use. Also, clean all pet bedding if applicable, and wash and treat pets with the proper flea control products.

What is the mix rate for Precor IGR?

0 votes

Q What is the mix rate for Precor IGR? answer now
Asked on August 30, 2023 3:18 PM

A
Precor IGR is mixed at a rate of 1 ounce of Precor IGR to 1 gallon of water.

How long does Precor work in preventing new fleas?

0 votes

Q How long does Precor work in preventing new fleas? answer now
Asked on August 30, 2023 3:14 PM

A
Precor IGR will stop flea emergence for up to 7 months.

Precor IGR Concentrate

Order Before 2:00pm PST For Same Day Shipping!
Most Items are received within 2-4 days of ordering!
FOR LARGE ORDERS, PLEASE EMAIL: [email protected] OR CALL 877-708-1974

Price range: $65.82 through $85.86

Size

Clear

Fast Free Shipping!

Precor® IGR Concentrate | Professional Insect Growth Regulator for Flea Control & Insect Prevention

Precor IGR Concentrate is a professional-grade insect growth regulator (IGR) designed to break the life cycle of fleas and other listed insects by preventing immature stages from developing into biting, reproducing adults. Instead of killing insects on contact, Precor works by stopping eggs and larvae from maturing, making it an essential component of any long-term flea control program.

Manufactured by Zoecon, Precor IGR Concentrate is widely trusted by pest control professionals for residential, commercial, and institutional flea management, especially when paired with adulticide sprays.

If you have an active flea infestation Precor IGR Concentrate will work best in conjunction with an adulticide such as Alpine WSG.

Product Features:

Precor Insect Growth Regulator prevents flea emergence for up to 7 months.
Provides professional flea control without disrupting household activities.
Heavier-than-air molecules go deep into the base of carpets and upholstery.
Can be tank mixed with adulticide for more severe infestations.

Sizes:

Box of (10) x 1 oz. bottles
16 oz. bottle

Product questions and answers

How long does Precor IGR take to work?

0 votes

Q How long does Precor IGR take to work? answer now
Asked on December 15, 2025 4:46 PM

A Precor IGR begins working immediately after application, but because it is an insect growth regulator, results are not instant in the way a contact insecticide works. Instead of killing adult insects right away, Precor IGR stops flea eggs and larvae from developing into biting adults. Most users notice a significant decline in new flea activity within 7–14 days, which aligns with the flea life cycle. When used alongside an adulticide, full control is typically achieved within 2–3 weeks, as existing adults die off and no new fleas are able to mature.

What is the correct mix rate of Precor IGR for flea control?

0 votes

Q What is the correct mix rate of Precor IGR for flea control? answer now
Asked on August 20, 2025 4:12 PM

A The mix rate of Precor® IGR Concentrate (Methoprene 1.2%) depends on the size of the treatment area: Standard Indoor Treatments: Mix 1 oz of Precor IGR per 1 gallon of water, which will treat up to 1,500 square feet of surface area (carpets, rugs, upholstery, pet bedding, and flooring). Large Areas or Heavy Infestations: For larger areas, increase the amount proportionally (for example, 2 oz per 2 gallons of water covers up to 3,000 sq. ft.). 👉 Precor IGR works by interrupting the flea life cycle, preventing eggs and larvae from developing into biting adults. It does not kill adult fleas, so for best results, use it in combination with an adulticide (such as a flea spray or residual insecticide). Always read and follow the product label directions for safe and effective use.

How can I tell if I have fleas?

0 votes

Q How can I tell if I have fleas? answer now
Asked on July 27, 2025 12:55 PM

A
When looking for fleas, there are a few key signs to watch for. The most obvious is bites on your body, especially around the ankles. You might also notice fleas jumping on floors, carpets, or bedding. Additionally, if your pets are scratching more than usual, check their fur by parting it to spot any fleas. If you find fleas, it’s time to tackle these pesky pests. Precor IGR can help interrupt the flea life cycle and works best when paired with an adulticide like Alpine WSG. For detailed instructions on how to get rid of fleas, check out our How To Instructions page.

Does Precor IGR stain?

0 votes

Q Does Precor IGR stain? answer now
Asked on August 30, 2023 3:41 PM

A
Generally, Precor IGR does not stain, but it is best to try a small amount on an inconspicuous area first to check for possible staining.

How much will one gallon of diluted Precor concentrate treat?

0 votes

Q How much will one gallon of diluted Precor concentrate treat? answer now
Asked on August 30, 2023 3:35 PM

A
1 gallon of water mixed with 1 ounce of Precor IGR concentrate will treat up to 1,500 square feet of surface area. You will want to use a low-pressure sprayer with a fan tip.

Can Precor IGR be tanked mixed with other insecticides?

0 votes

Q Can Precor IGR be tanked mixed with other insecticides? answer now
Asked on August 30, 2023 3:30 PM

A
If needed, Precor IGR can be tanked mixed with other insecticides that are labeled for flea control.

Do I need to do anything else before using Precor IGR?

0 votes

Q Do I need to do anything else before using Precor IGR? answer now
Asked on August 30, 2023 3:22 PM

A
Before using Precor IGR concentrate, make sure to vacuum all carpets and rugs a least twice and make sure to clean the vacuum after each use. Also, clean all pet bedding if applicable, and wash and treat pets with the proper flea control products.

What is the mix rate for Precor IGR?

0 votes

Q What is the mix rate for Precor IGR? answer now
Asked on August 30, 2023 3:18 PM

A
Precor IGR is mixed at a rate of 1 ounce of Precor IGR to 1 gallon of water.

How long does Precor work in preventing new fleas?

0 votes

Q How long does Precor work in preventing new fleas? answer now
Asked on August 30, 2023 3:14 PM

A
Precor IGR will stop flea emergence for up to 7 months.

Product Documents

Precor IGR Concentrate

show Pesticide Products Top 100

SKU N/A Category Pesticide Products Tags Fleas, IGR, Insect Growth Regulator, Methoprene, Zoecon

Description

Product Alternative: Gentrol IGR Concentrate

EPA Registration No.: 2724-352

Active Ingredient: Methoprene – 1.2%

Precor IGR Product Information:

Why Precor IGR Concentrate Works

Stops flea life cycle – Prevents eggs and larvae from developing into adults
Long-lasting residual – Continues working for up to 7 months when applied correctly
Non-repellent & odorless – Ideal for indoor living spaces
Won’t interfere with adulticides – Compatible with most flea sprays and concentrates
Prevents reinfestation – Essential for long-term flea control success
Professional concentrate – Cost-effective coverage for large areas

Target Pests

Fleas (eggs, larvae, and pupae)
Flea life stages in carpets, rugs, and pet resting areas
Other listed insects where growth regulation is appropriate (per label)

Precor does not kill adult fleas—it prevents future generations and must be used with an adulticide for active infestations.

Where to Use Precor IGR Concentrate

Carpets and rugs
Upholstered furniture
Pet sleeping and resting areas
Baseboards, cracks, and crevices
Homes, apartments, and condos
Kennels, veterinary clinics, and animal housing (per label)

How to Mix & Apply (Quick Guide)

Shake concentrate well before mixing
Mix with water according to label rates
Apply using a pump sprayer or professional equipment
Lightly treat carpets, rugs, and pet areas (do not oversaturate)
Allow treated areas to dry completely before reentry

For best results, use Precor IGR Concentrate as part of a complete Integrated Pest Management (IPM) flea program that includes vacuuming, pet treatments, and adulticide applications.

Product Specifications

Formulation: Liquid concentrate
Active Ingredient: Methoprene (IGR)
Mode of Action: Insect growth regulation
Odor: Odorless
Staining: Non-staining when used as directed
Use Sites: Indoor residential and commercial
Manufacturer: Zoecon

Why Professionals Choose Precor IGR Concentrate

Flea infestations persist when immature stages are ignored. Precor IGR Concentrate solves this problem by delivering long-term residual control that prevents fleas from ever reaching adulthood. This dramatically reduces callbacks and ensures lasting results when combined with adult flea treatments.

Additional information

Size	1 Box = 10 X 1 oz. Bottles, 16 oz.

Manufacturer

Zoecon

Active Ingredient

Methoprene – 1.2%

For Use In

Common flea surfaces including carpets, upholstered furniture, and pet sleeping areas. Indoors to flea harborages, including but not limited to carpet, furniture, pet bedding and throw rugs. When treating upholstery, test for staining in an inconspicuous location.

Target Pests

Fleas (excluding existing adult fleas).

Reviews

There are no reviews yet

Only logged in customers who have purchased this product may leave a review.

Product questions and answers

How long does Precor IGR take to work?

0 votes

Q How long does Precor IGR take to work? answer now
Asked on December 15, 2025 4:46 PM

A Precor IGR begins working immediately after application, but because it is an insect growth regulator, results are not instant in the way a contact insecticide works. Instead of killing adult insects right away, Precor IGR stops flea eggs and larvae from developing into biting adults. Most users notice a significant decline in new flea activity within 7–14 days, which aligns with the flea life cycle. When used alongside an adulticide, full control is typically achieved within 2–3 weeks, as existing adults die off and no new fleas are able to mature.

What is the correct mix rate of Precor IGR for flea control?

0 votes

Q What is the correct mix rate of Precor IGR for flea control? answer now
Asked on August 20, 2025 4:12 PM

A The mix rate of Precor® IGR Concentrate (Methoprene 1.2%) depends on the size of the treatment area: Standard Indoor Treatments: Mix 1 oz of Precor IGR per 1 gallon of water, which will treat up to 1,500 square feet of surface area (carpets, rugs, upholstery, pet bedding, and flooring). Large Areas or Heavy Infestations: For larger areas, increase the amount proportionally (for example, 2 oz per 2 gallons of water covers up to 3,000 sq. ft.). 👉 Precor IGR works by interrupting the flea life cycle, preventing eggs and larvae from developing into biting adults. It does not kill adult fleas, so for best results, use it in combination with an adulticide (such as a flea spray or residual insecticide). Always read and follow the product label directions for safe and effective use.

How can I tell if I have fleas?

0 votes

Q How can I tell if I have fleas? answer now
Asked on July 27, 2025 12:55 PM

A
When looking for fleas, there are a few key signs to watch for. The most obvious is bites on your body, especially around the ankles. You might also notice fleas jumping on floors, carpets, or bedding. Additionally, if your pets are scratching more than usual, check their fur by parting it to spot any fleas. If you find fleas, it’s time to tackle these pesky pests. Precor IGR can help interrupt the flea life cycle and works best when paired with an adulticide like Alpine WSG. For detailed instructions on how to get rid of fleas, check out our How To Instructions page.

Does Precor IGR stain?

0 votes

Q Does Precor IGR stain? answer now
Asked on August 30, 2023 3:41 PM

A
Generally, Precor IGR does not stain, but it is best to try a small amount on an inconspicuous area first to check for possible staining.

How much will one gallon of diluted Precor concentrate treat?

0 votes

Q How much will one gallon of diluted Precor concentrate treat? answer now
Asked on August 30, 2023 3:35 PM

A
1 gallon of water mixed with 1 ounce of Precor IGR concentrate will treat up to 1,500 square feet of surface area. You will want to use a low-pressure sprayer with a fan tip.

Can Precor IGR be tanked mixed with other insecticides?

0 votes

Q Can Precor IGR be tanked mixed with other insecticides? answer now
Asked on August 30, 2023 3:30 PM

A
If needed, Precor IGR can be tanked mixed with other insecticides that are labeled for flea control.

Do I need to do anything else before using Precor IGR?

0 votes

Q Do I need to do anything else before using Precor IGR? answer now
Asked on August 30, 2023 3:22 PM

A
Before using Precor IGR concentrate, make sure to vacuum all carpets and rugs a least twice and make sure to clean the vacuum after each use. Also, clean all pet bedding if applicable, and wash and treat pets with the proper flea control products.

What is the mix rate for Precor IGR?

0 votes

Q What is the mix rate for Precor IGR? answer now
Asked on August 30, 2023 3:18 PM

A
Precor IGR is mixed at a rate of 1 ounce of Precor IGR to 1 gallon of water.

How long does Precor work in preventing new fleas?

0 votes

Q How long does Precor work in preventing new fleas? answer now
Asked on August 30, 2023 3:14 PM

A
Precor IGR will stop flea emergence for up to 7 months.

Precor IGR Concentrate

Order Before 2:00pm PST For Same Day Shipping!
Most Items are received within 2-4 days of ordering!
FOR LARGE ORDERS, PLEASE EMAIL: [email protected] OR CALL 877-708-1974

Fast Free Shipping!

Precor® IGR Concentrate | Professional Insect Growth Regulator for Flea Control & Insect Prevention

If you have an active flea infestation Precor IGR Concentrate will work best in conjunction with an adulticide such as Alpine WSG.

Product Features:

Precor Insect Growth Regulator prevents flea emergence for up to 7 months.
Provides professional flea control without disrupting household activities.
Heavier-than-air molecules go deep into the base of carpets and upholstery.
Can be tank mixed with adulticide for more severe infestations.

Sizes:

Box of (10) x 1 oz. bottles
16 oz. bottle

Price range: $65.82 through $85.86

Size

Clear

Product Documents

Precor IGR Concentrate

show Pesticide Products Top 100

SKU N/A Category Pesticide Products Tags Fleas, IGR, Insect Growth Regulator, Methoprene, Zoecon

Description

Product Alternative: Gentrol IGR Concentrate

EPA Registration No.: 2724-352

Active Ingredient: Methoprene – 1.2%

Precor IGR Product Information:

Why Precor IGR Concentrate Works

Stops flea life cycle – Prevents eggs and larvae from developing into adults
Long-lasting residual – Continues working for up to 7 months when applied correctly
Non-repellent & odorless – Ideal for indoor living spaces
Won’t interfere with adulticides – Compatible with most flea sprays and concentrates
Prevents reinfestation – Essential for long-term flea control success
Professional concentrate – Cost-effective coverage for large areas

Target Pests

Fleas (eggs, larvae, and pupae)
Flea life stages in carpets, rugs, and pet resting areas
Other listed insects where growth regulation is appropriate (per label)

Precor does not kill adult fleas—it prevents future generations and must be used with an adulticide for active infestations.

Where to Use Precor IGR Concentrate

Carpets and rugs
Upholstered furniture
Pet sleeping and resting areas
Baseboards, cracks, and crevices
Homes, apartments, and condos
Kennels, veterinary clinics, and animal housing (per label)

How to Mix & Apply (Quick Guide)

Shake concentrate well before mixing
Mix with water according to label rates
Apply using a pump sprayer or professional equipment
Lightly treat carpets, rugs, and pet areas (do not oversaturate)
Allow treated areas to dry completely before reentry

For best results, use Precor IGR Concentrate as part of a complete Integrated Pest Management (IPM) flea program that includes vacuuming, pet treatments, and adulticide applications.

Product Specifications

Formulation: Liquid concentrate
Active Ingredient: Methoprene (IGR)
Mode of Action: Insect growth regulation
Odor: Odorless
Staining: Non-staining when used as directed
Use Sites: Indoor residential and commercial
Manufacturer: Zoecon

Why Professionals Choose Precor IGR Concentrate

Additional information

Size	1 Box = 10 X 1 oz. Bottles, 16 oz.

Manufacturer

Zoecon

Active Ingredient

Methoprene – 1.2%

For Use In

Target Pests

Fleas (excluding existing adult fleas).

Reviews

There are no reviews yet

Only logged in customers who have purchased this product may leave a review.

Product questions and answers

How long does Precor IGR take to work?

0 votes

Q How long does Precor IGR take to work? answer now
Asked on December 15, 2025 4:46 PM

A Precor IGR begins working immediately after application, but because it is an insect growth regulator, results are not instant in the way a contact insecticide works. Instead of killing adult insects right away, Precor IGR stops flea eggs and larvae from developing into biting adults. Most users notice a significant decline in new flea activity within 7–14 days, which aligns with the flea life cycle. When used alongside an adulticide, full control is typically achieved within 2–3 weeks, as existing adults die off and no new fleas are able to mature.

What is the correct mix rate of Precor IGR for flea control?

0 votes

Q What is the correct mix rate of Precor IGR for flea control? answer now
Asked on August 20, 2025 4:12 PM

A The mix rate of Precor® IGR Concentrate (Methoprene 1.2%) depends on the size of the treatment area: Standard Indoor Treatments: Mix 1 oz of Precor IGR per 1 gallon of water, which will treat up to 1,500 square feet of surface area (carpets, rugs, upholstery, pet bedding, and flooring). Large Areas or Heavy Infestations: For larger areas, increase the amount proportionally (for example, 2 oz per 2 gallons of water covers up to 3,000 sq. ft.). 👉 Precor IGR works by interrupting the flea life cycle, preventing eggs and larvae from developing into biting adults. It does not kill adult fleas, so for best results, use it in combination with an adulticide (such as a flea spray or residual insecticide). Always read and follow the product label directions for safe and effective use.

How can I tell if I have fleas?

0 votes

Q How can I tell if I have fleas? answer now
Asked on July 27, 2025 12:55 PM

A
When looking for fleas, there are a few key signs to watch for. The most obvious is bites on your body, especially around the ankles. You might also notice fleas jumping on floors, carpets, or bedding. Additionally, if your pets are scratching more than usual, check their fur by parting it to spot any fleas. If you find fleas, it’s time to tackle these pesky pests. Precor IGR can help interrupt the flea life cycle and works best when paired with an adulticide like Alpine WSG. For detailed instructions on how to get rid of fleas, check out our How To Instructions page.

Does Precor IGR stain?

0 votes

Q Does Precor IGR stain? answer now
Asked on August 30, 2023 3:41 PM

A
Generally, Precor IGR does not stain, but it is best to try a small amount on an inconspicuous area first to check for possible staining.

How much will one gallon of diluted Precor concentrate treat?

0 votes

Q How much will one gallon of diluted Precor concentrate treat? answer now
Asked on August 30, 2023 3:35 PM

A
1 gallon of water mixed with 1 ounce of Precor IGR concentrate will treat up to 1,500 square feet of surface area. You will want to use a low-pressure sprayer with a fan tip.

Can Precor IGR be tanked mixed with other insecticides?

0 votes

Q Can Precor IGR be tanked mixed with other insecticides? answer now
Asked on August 30, 2023 3:30 PM

A
If needed, Precor IGR can be tanked mixed with other insecticides that are labeled for flea control.

Do I need to do anything else before using Precor IGR?

0 votes

Q Do I need to do anything else before using Precor IGR? answer now
Asked on August 30, 2023 3:22 PM

A
Before using Precor IGR concentrate, make sure to vacuum all carpets and rugs a least twice and make sure to clean the vacuum after each use. Also, clean all pet bedding if applicable, and wash and treat pets with the proper flea control products.

What is the mix rate for Precor IGR?

0 votes

Q What is the mix rate for Precor IGR? answer now
Asked on August 30, 2023 3:18 PM

A
Precor IGR is mixed at a rate of 1 ounce of Precor IGR to 1 gallon of water.

How long does Precor work in preventing new fleas?

0 votes

Q How long does Precor work in preventing new fleas? answer now
Asked on August 30, 2023 3:14 PM

A
Precor IGR will stop flea emergence for up to 7 months.

Product questions and answers

Precor IGR Concentrate

Fast Free Shipping!

Precor® IGR Concentrate | Professional Insect Growth Regulator for Flea Control & Insect Prevention

Product Features:

Sizes:

Product questions and answers

Product Documents

You might also like...

Precor IGR Concentrate

Description

Product Alternative: Gentrol IGR Concentrate

EPA Registration No.: 2724-352

Active Ingredient: Methoprene – 1.2%

Precor IGR Product Information:

Why Precor IGR Concentrate Works

Target Pests

Where to Use Precor IGR Concentrate

How to Mix & Apply (Quick Guide)

Product Specifications

Why Professionals Choose Precor IGR Concentrate

Additional information

Manufacturer

Active Ingredient

Methoprene – 1.2%

For Use In

Target Pests

Reviews

Product questions and answers

Precor IGR Concentrate

Fast Free Shipping!

Precor® IGR Concentrate | Professional Insect Growth Regulator for Flea Control & Insect Prevention

Product Features:

Sizes:

Product Documents

Precor IGR Concentrate

Description

Product Alternative: Gentrol IGR Concentrate

EPA Registration No.: 2724-352

Active Ingredient: Methoprene – 1.2%

Precor IGR Product Information:

Why Precor IGR Concentrate Works

Target Pests

Where to Use Precor IGR Concentrate

How to Mix & Apply (Quick Guide)

Product Specifications

Why Professionals Choose Precor IGR Concentrate

Additional information

Manufacturer

Active Ingredient

Methoprene – 1.2%

For Use In

Target Pests

Reviews

Product questions and answers

Resources

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