By
Phyllis McMahon
Phyllis McMahon
Research Writer
Phyllis teaches English Literature at a local college and loves writing in her free time. She’s also a great cook – her British beef Wellington is something the best res read more
reviewed
Reviewed By
Chas Kempf
Chas Kempf
Expert Consultant
Chas works in a professional pest control company and knows all the nuances of this job. Also, he’s a fantastic tennis player and loves to organize BBQ parties for his fam read more
Last updated: December 23, 2022

Gentrol IGR Review: Will It Help to Get Rid of Roaches? (Winter 2023)

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By
Phyllis McMahon
Phyllis McMahon
Research Writer
Phyllis teaches English Literature at a local college and loves writing in her free time. She’s also a great cook – her British beef Wellington is something the best res read more
reviewed
Reviewed By
Chas Kempf
Chas Kempf
Expert Consultant
Chas works in a professional pest control company and knows all the nuances of this job. Also, he’s a fantastic tennis player and loves to organize BBQ parties for his fam read more
Last updated: December 23, 2022
Pest Products is reader-supported. We may earn a commission through products purchased using links on this page. Learn more about our process here
Ideal for
  • Killing roaches safely without harm to humans or pets
  • The long-term solution to cockroach infestations
  • Killing roaches in spaces where you don’t want to spray, such as kitchens
Key features
  • Keep away from pets and vulnerable people
  • Wear gloves when handling
  • It may require some other form of environmentally-safe adulticide
Editor's Rating
9.2
out of 10
  • Efficiency
    9.2
  • Ease of use
    9.4
  • Ingredients
    9.0
  • Overall
    9.1
Users’ Rating
4.1
out of 5
114 Users’ Rating
rating rating rating rating rating
rating
rating rating rating rating rating
4.1
out of
5
114 Users’ Rating
  • 5 stars
    20%
  • 4 stars
    67%
  • 3 stars
    11%
  • 2 stars
    2%
  • 1 stars
    0%
Add your rating:

Gentrol IGR is a cockroach exterminator. It’s ideal for use in areas that are sensitive and where it’s risky to use certain pesticides, such as pantries and nursing homes or hospitals. In these areas, you can’t spray or engage in fogging at will. That’s where products like Gentrol IGR come in. This one has a long-term action rather than immediate, and it is safe even in areas where people handle and eat food or for residents of a certain property. So, why are we doing a Gentrol IGR review? Because firstly, it’s a product that doesn’t need pests to come in contact with the disc. So, it can be effective even if you’re not sure where the critters’ nest is.

Also, it’s a hormone that targets reproduction and growth and is slowly released into the environment. This means that roaches will start decaying and will not be able to produce babies—all this without fear of poisoning human beings. Cockroaches have an extraordinarily short life cycle, which also means that they reproduce rapidly. So you need a fast-acting pest control plan. Did you know female cockroaches produce up to 380 eggs during their life, or 48 eggs every six weeks? The nymphs or babies mature within 100 days, and the adults live to 200 days. This means that you may have a rapidly growing infestation, even when you first notice them. So, it’s imperative to deal with them on day 1. Let’s show you how Gentrol IGR can help.

Specifications

Works against
Roaches
Use in
Food handling establishments, nursing homes, hospitals
Effect
Up to 3 months
Area
One disc treats up to 75 sq. ft

Gentrol IGR Review

Cockroach infestations can be exceptionally difficult to control because they’re such tough creatures and difficult to get to when they hide in their nests. Luckily, Gentrol IGR is a device that’s used for getting rid of cockroaches in a safe and effective manner in environments where spraying is inappropriate. It gets rid of roaches by slowly releasing a hormone into the environment, and this targets reproduction and growth in specific pests—in this case, the roaches. After setting out this product, you will soon see a reduction in cockroaches in the area where you put it.

It doesn’t need the insect to touch it to be effective, and it works over a radius of 75 sq feet.

Overall performance and functions

Gentrol IGR Review: Will It Help to Get Rid of Roaches? (Winter 2023)
Gentrol IGR also works on other stored product pests, such as the red flour beetle, confused flour beetle, and merchant beetles.

In practice, with Gentrol IGT, you place a disc in an area with a pest problem. It can even be in public areas where there are many people or pets or near where people eat. However, you shouldn’t place it on food surfaces themselves or anywhere within 3 ft of where food is served. The disc starts releasing a hormone that targets the growth of roaches. They fail to develop to maturity and become sterile, unable to reproduce. It also targets the reproductive system of adult roaches and prevents them from producing more babies. Soon, you will see there are fewer cockroaches and that the wings of the insects that do appear become wrinkled. That’s how you know it’s working. This process takes about two weeks, so you may need an adulticide in addition to this product if you need to kill off mature critters as well.

Ingredients

Gentrol IGR contains hydroprene Trusted Source Hydroprene Hydroprene is an insecticide used against cockroaches, beetles, and moths. It was registered by the U.S. Environmental Protection Agency (EPA) in 1984. npic.orst.edu , which is a juvenile hormone imitator. It’s a synthetic copy of a natural insect-repellent biochemical. Hydroprene disrupts the growth patterns of the cockroaches on the property and causes sterilization in adult cockroaches, resulting in the inability to reproduce.

Applications

Gentrol IGR Review: Will It Help to Get Rid of Roaches? (Winter 2023)
Place the disc either horizontally or vertically in drawers, on floors, or in other places you’ve seen cockroaches. The disc lasts for 90 days or roughly three months. Mark it on a calendar, or write it on the device itself while using gloves. Make sure you have continuous protection, so the problem doesn’t repeat itself.

To know how to apply this product, measure the area you wish to cover. Each Gentrol IGR disc covers an area of 75 sq feet, so divide your area by 75 in order to determine how many discs you’ll need. The application also depends on the areas that cockroaches appear in. So, you may not need it in the bedrooms, only in the kitchen, although that depends on the source of the problem. Sometimes they come through pipes, cracks, and drains, and the problem is everywhere. Rather treat your rooms properly and know you’re free of the issue, right?

In order to place the disc safely without harm to yourself, use gloves. You then place it in an area where pets, children, and vulnerable adults don’t have access. Gentrol IGR hydroprene is housed in a capsule on the side of the disc. The hormone goes onto a cotton pad inside the disc. It’s ready to use without mixing. To activate, press the capsule between the thumb and forefinger until you hear a snapping sound. When this occurs, the chemical is released onto the cotton pad and, from there, into the environment.

Ease of use

Gentrol IGR Review: Will It Help to Get Rid of Roaches? (Winter 2023)
Just remember not to press anything on the round part of the disc.

As long as you take the precaution of wearing gloves and placing them out of reach from vulnerable people and pets, it’s exceptionally easy to use.

Safety features

Keep Gentrol IGR at least 3 ft from exposed food. Also, keep it away from food surfaces and places where pets and toddlers can pick the disc up and touch it.

Durability and warranty

This gives you 90-day control over insects. You have to replace it every three months for continual control of roaches. Note that there is no warranty.

Price tag

It costs less than $2 per box of 20 discs. How many you’ll need will depend on how large your home is. The price tag makes it an affordable option, especially because it lasts for three months.

Key features

  • Gentrol IGR consists of a cotton pad that is housed in a plastic disc. There is a plastic capsule on the side of the disc, which contains hydroprene. You break this open, and it gets released onto the cotton pad inside the disc.
  • This hormone is released into the atmosphere. It’s a growth inhibitor Trusted Source Hydroprene: Mode of action, current status in stored-product pest management, insect resistance, and future prospects The insect growth regulator (IGR) hydroprene is a juvenile hormone analogue used in urban and stored-product insect control programs in the United States and in other developed countries. www.sciencedirect.com and acts on immature adults to prevent their growth. It also acts on adults to sterilize them and prevent them from producing babies.
  • The product isn’t harmful to the environment, although it can impact bees.
PROS CONS
  • Can be used in food handling and storage areas, such as pantries
  • Is easy to install
  • Lasts for three months
  • Is environmentally-friendly Trusted Source US Environmental Protection Agency Office of Pesticide Programs These active ingredients prevent insect larvae from developing into adults. The chemicals interfere with the normal function of insect juvenile hormone, which controls the growth, development, and maturation of insects. www3.epa.gov
  • Can be used for other stored product pest
  • Low toxicity to mammals Trusted Source Hydroprene (Ref: OMS 1696) Pesticide properties for Hydroprene, including approvals, environmental fate, eco-toxicity and human health issue. sitem.herts.ac.uk
  • It must be used alongside another insecticide in the beginning because it’s slow-acting
  • Must be careful around pets and vulnerable people

Conclusion

In this Gentrol IGR review, we covered the distinctiveness of the product to show you a unique way to fight pests. This is a hormone that targets growth and reproduction in the insect. We also looked at its effectiveness and safety, especially around food and food storage. It’s excellent when used with adulticides to keep your property roach free from now on.

References

1.
Hydroprene
Hydroprene is an insecticide used against cockroaches, beetles, and moths. It was registered by the U.S. Environmental Protection Agency (EPA) in 1984.
2.
Hydroprene: Mode of action, current status in stored-product pest management, insect resistance, and future prospects
The insect growth regulator (IGR) hydroprene is a juvenile hormone analogue used in urban and stored-product insect control programs in the United States and in other developed countries.
3.
US Environmental Protection Agency Office of Pesticide Programs
These active ingredients prevent insect larvae from developing into adults. The chemicals interfere with the normal function of insect juvenile hormone, which controls the growth, development, and maturation of insects.
4.
Hydroprene (Ref: OMS 1696)
Pesticide properties for Hydroprene, including approvals, environmental fate, eco-toxicity and human health issue.
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