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Gentrol IGR Concentrate travels deep into wall cavities, cracks and crevices, reaching the stored product pests that other treatments miss. Hydroprene, the active ingredient, prevents stored product pest larvae from progressing to the pupal stage of development, so the larvae die before they become breeding adults and future infestations.
Gentrol Concentrate should never be used to eliminate a roach population by itself.
* Gentrol will not kill roaches...it only prevents them from reproducing.
|Active Ingredient:||(S)-Hydroprene (CAS #65733-18-8) - 9%|
|Target pests:||Roaches, Drain & Fruit Flies, Bedbugs, and Stored Product insects|
|For use in:||Food & Non-Food areas|
|Application:||1 oz. per one gallon of water (Crack & Crevice, Spot, or Fogging)
* Most effective when mixed with a liquid insecticide
* Roaches repeat every 4 months
* Bed Bugs repeat every 2 weeks
* Fruit & Drain Flies repeat every 2 - 4 weeks
* See label for complete application instructions
|Yield:||1 pint (16 oz.) makes 16 gallons of solution|
|NOT FOR SALE TO:||AK|
|Shipping Weight:||0.08 lbs|
How Gentrol IGR Concentrate Works
Gentrol IGR (Insect Growth Regulator) Concentrate travels deep into wall cavities, cracks and crevices, reaching the stored product pests, drain and fruit flies, and fleas, that other treatments miss. Hydroprene, the active ingredient, prevents pest larvae from progressing to the pupal stage of development, so the larvae die before they become breeding adults – and future infestations. Cockroaches and bedbugs exposed to Gentrol will become adults incapable of reproducing.
Stored product pests encounter hydroprene the same way they encounter insecticides – traveling on or rubbing against a treated surface. Gentrol IGR Concentrate spreads out from its point of application, creating a much larger treated surface than conventional insecticides. Gentrol Concentrate should always be diluted with water when applying with a sprayer. Because Gentrol is an insect growth regulator and not an adulticide, it should not be used as the sole protection for target pests.
Roaches, drain flies, fruit flies, bed bugs, stored product pests
PESTS CONTROLLED WITH GENTROL IGR CONCENTRATE: Cockroaches, drain flies, fruit flies, bed bugs, stored product pests (including Indian meal moths, rice moths, tobacco moths, red flour beetles, confused flour beetles, lesser grain borers, merchant grain beetles, sawtooth grain beetles, warehouse beetles, cigarette beetles, and Dermestid beetles)
GENTROL, an Insect Growth Regulator (IGR), is a synthetic juvenile hormone "look-alike" which disrupts the normal growth development of bedbugs and roaches. Bedbugs and roaches exposed to the GENTROL IGR Concentrate will become adults incapable of reproducing, thus ending the cycle of an infestation. Use GENTROL IGR Concentrate in apartment buildings, hospitals, hotels/motels, residential homes, nursing homes, and marine vessels. Because of its broad labeling, Gentrol can be used in many sensitive areas where other sprays cannot. Gentrol is an excellent accompaniment to baiting programs for cockroaches, and it can be tank mixed with insecticides for treating bed bugs, roaches, or other listed pests.
Whether it’s used as a fogging agent or general surface spray, the long-term control of Gentrol IGR Concentrate is ideal for these sites:
- Food Handling Establishments
- Nursing Homes
- Aircraft, Ships, Trains, Trucks
ACTIVE INGREDIENT: S-Hydroprene 9.0%
Gentrol IGR Concentrate Application Instructions
Use Gentrol as a general surface spray, fogging, spot, or crack and crevice application. Mix Gentrol Concentrate with diluent and apply with spray or hand application equipment, such hand-pressurized or power-operated sprayers capable of delivering general surface spray, fogging (space spray/mist), spot, crack and crevice spray applications, or with a paint brush, roller, or similar device.
Mix GENTROL IGR Concentrate with water and apply with spray or hand application equipment, such as hand pressurized or power-operated sprayers capable of delivering spot or crack and crevice spray applications.
For spot and crack and crevice preparations:
Use 1 ounce of GENTROL IGR Concentrate to 1 gallon of water. Partially fill the mixing container with water, add the GENTROL IGR Concentrate, shake or stir, and fill to final volume. Use diluted solution within 48 hours of mixing. Shake or stir before each use.
Spot and Crack and Crevice Applications:
Apply GENTROL IGR Concentrate diluted spray solution using either a pressurized spray system capable of delivering a pinpoint or variable spray pattern or a device capable of coating evenly. Make crack and crevice applications directly to areas such as crevices, baseboards, floors, ceilings, or walls. Make spot treatments to areas such as storage areas, closets, doors, and behind and under furniture and beds. To treat bedbugs, apply to harborage points mentioned above; in addition, under beds, bottom side of box springs (do not treat linens and mattresses), under and behind night stands, to points where carpet and wall meet, cracks in cove base, molding, and other areas where bedbugs harborage.
Gentrol Concentrate may be tank mixed with an adulticide currently registered for use, unless the product label prohibits such use.
Gentrol Concentrate may also be converted to a foam. For best results, use the higher amount of the foaming agent rate range.
Always read the product label completely before use.
Each 1 oz. bottle yields 1 gallon of finished solution. Each 16 oz. bottle yields 16 gallons of finished solution. 1 gallon of finished solution covers 1,500 square feet of surface area.
Standard Application Dilution rates / Mixing Ratios for Gentrol IGR Concentrate
- 1 fl. oz. (30 mL)/gal. of water – surface, spot, or crack and crevice applications
- 1 fl. oz. (30 mL) per 12,000 cubic feet – fogging applications
Gentrol IGR Concentrate is for use in the following areas:
Apartment buildings, bakeries, bottling facilities, breweries, boiler rooms, cafeterias, candy plants, grocery stores, day care centers, hospitals, residential homes, hotel/motels, office buildings, kitchens, laboratories, cereal processing facilities, manufacturing plants, mausoleums, meat and produce canneries, nursing homes, restaurants, schools, locker rooms, stores, taverns, warehouses, as well as various modes of transportation such as aircraft, buses, trucks, trailers, rail cars, and marine vessels; food and non-food areas of food-handling establishments.
Fogging Application: Apply Gentrol Concentrate as a fog or an ultra-low volume (ULV) mist with equipment such as ULV, mechanical misting sprayers, aerosol generators, or thermal foggers to achieve uniform coverage. Apply at a rate of 1 ounce Gentrol per 12,000 cubic feet. Use water or oil as diluent, depending on the type of equipment used. Fogging applications are best for larger facilities including warehouses. Close room or warehouse and shut off all ventilation systems. Apply the product in the air and direct mist toward all areas that may harbor target pests. After treatment, leave the room closed for 30 minutes or longer as recommended by the equipment manufacturer or the labels of other products applied in tank mixing. Do not remain in treated area; ventilate before reentry.
Bed Bugs: Apply to harborage points mentioned above; in addition, under beds, bottom side of box springs (do not treat linens and mattresses), under and behind night stands, to points where carpet and wall meet, cracks in cove base, molding, and other areas where bedbugs harborage. Retreat at 14 days for heavy infestations. Gentrol cannot be used as the sole treatment for bed bugs.
Drain Flies, Fruit Flies: Apply Gentrol to areas of fly breeding. For drains, apply product into and around the downspout and catch basin area. Coat these areas thoroughly as fly larvae develop in the scum buildup on the sides of drain pipes. Repeat applications at 2 to 4 week intervals depending upon the severity of infestation.
Pantry/Cabinets, Small Food Storage Areas: Apply as a surface spray, crack and crevice spray, or spot treatment to pantry and cupboard shelves or other areas where food is stored. Prior to spraying, remove all food containers and foodstuffs. Do not replace food containers or foodstuffs until spray has dried. Do not store food in open containers in treated pantries. Destroy any infested food packages to ensure proper control.
Gentrol IGR Concentrate is not intended for outdoor use because it is not photostable (the product breaks down quickly in direct sunlight).
Gentrol IGR Concentrate Features
- Contains the insect growth regulator (IGR) hydroprene, which disrupts pests’ normal growth pattern.
- The only IGR labeled for use as a spot and crack-and-crevice treatment in all areas of food handling establishments.
- May be applied as a general fogging agent or general surface spray.
- Long-term control – 120 days.
- Breaks the endless clean-out/reinfestation cycle.
- Also targets cockroaches.
- Easy dilution rate.
- Use diluted solution within 48 hours of mixing. Shake or stir before each use.
- When tank mixing with adulticides, be careful to match coverage areas of finished solutions. (Many insecticides are applied at a rate of 1 gallon of solution per 1,000 sq. ft.)
- Do not apply directly to food or food-handling surfaces.
- Gentrol is for indoor use only.
- Not for use as the sole protection from listed pests, especially bed bugs and cockroaches.
- Gentrol IGR is also available in a convenient ready-to-use aerosol or the discreet point source stations.
See all 86 reviews »
57 of 61 people found this review helpful:
This product works! Thank Goodness!
By Eve in Cocoa Florida on 05/16/2010
My sons roommate picked up an old sofa-bed for his room. It had bedbugs! My sons house became infected before anyone knew what happened. No one in our family had ANY experience with these horrible creatures! He ordered from your company and was pleased. Then, the little buggers found their way into MY house, probably because while he was treating his house, we kept our granddaughter with us, of course bringing along some clothes and toys! They really got after my husband because he has a very warm body. We ordered your product and are very pleased! We haven't seen any bugs in 3 weeks, I have one more spraying to do. You should spray at least 3 times, 10 days apart. The odor was affordable, the directions good, and best of all, IT WORKS!
40 of 42 people found this review helpful:
It's just works!
By Kahina in Brooklyn,Ny on 10/22/2010
This stuff works! I'm soooo glad to have found your website and to have found something that actually works immediately. I just moved into an apartment the 1st of this month where it unfortunately had roaches. I couldn't sleep when I noticed the apartment had them; I'd never lived with these ungodly creatures before. I purchased this product along with the Drione and they did the trick! I think my landlord is amazed but he won't let on. He's been paying an exterminator to visit twice a month. This stuff works, the exterminator is a waste of his money. It's been three weeks and I'm more than happy to say that I can rest peacefully.
37 of 37 people found this review helpful:
By Chris in New York City on 07/04/2010
I used this stuff to get rid of bedbugs -- it's the only thing that really worked because it's a genetic disruptor and breaks their life cycle. It had the added bonus of breaking the life cycle of every other insect also -- so I haven't seen a roach or a fly ever since I used it. What an awesome product.
30 of 31 people found this review helpful:
By J. in New York, New York & Oklahoma on 05/22/2011
A few years back our Queens, NY apartment became infested with bed bugs. The landlord called an exterminator, who treated our apartment about four times. One of the exterminators (then sent a different one each time) told me that the bug spray mix wasn't really meant to get rid of bed bugs permanently, just put them into temporary hiding. After the four or so treatments, we still had the bedbugs. I decided on this product after reading the literature that was available then. It turned out to work. After one treatment of this, the bed bugs slowed down, and after two they disappeared. I think I did this for a total of three times, and we never saw the bugs again. I had purchased the whole box and had most of it left after treating my apartment three times. Needless to say, the entire box of the Gentrol IGR cost less than a single visit from a NYC exterminator. As an added benefit, Gentrol IGR also fubars roaches. I now use it on my own commercial property for roach control, and for me, it is more effective (by killing the bugs and by cost) than hiring the bug company.
24 of 25 people found this review helpful:
Gentrol IGR Genetic Warfare for Roaches :)
By Tim in Clute, TX on 05/02/2012
I sprayed this down by itself a few days before performing my German Roach Normandy beach mission and I felt like I was on a secret mission to disrupt the worldwide roach population. This Gentrol with MaxForce FC Magnum bait and some Demon WP completely decimated a 20 year German roach problem in South Texas. All three totally killed every bug in the house, haven't seen or heard a peep for over two weeks and for the first time ever, I can say that they are gone with absolute certainty. Still got a spray bottle left in reserve just in case they ever try a counterattack. Thanks for an amazing product and very fast shipping.
10 of 10 people found this review helpful:
Broke their reproducing cycle!!
By Steve in North Carolina on 07/02/2014
My house became infested with roaches, after an undetected water leak created the perfect breeding grounds for them under the kitchen. I spent several hundred dollars on a 'professional' exterminator, and he didn't put a dent in the little buggers. Then, I bought Gentrol and Demon WP, and they worked great!!! And the Gentrol is still working, months later. The few bugs we do see, are 'crippled, crazy and malformed'.
11 of 11 people found this review helpful:
gentrol IGR concentrate
By Daniel in Canton, Ohio on 03/04/2014
The main reason I purchased this product was to use it along with other chemicals when I'm killing bedbugs. The major pest control company I work for won't give it to me for my use, and as it has a growth inhibitor in it which is important if you miss any eggs when you are treating and steaming the inhibitor won't let the nymphs shed their skin to get to the next stage. Thus you eliminate them a lot faster. I bought it with my money to better serve my customers. It works and is well worth the price.
9 of 9 people found this review helpful:
gentrol IGR Concentrate
By Eluv in nj on 02/06/2013
I mixed it with a temprid insecticide and haven't seen bugs in over 2 weeks, from previous experience and from advice from a friend that is a professional exterminator IGRs work best if mixed with a good insecticide rather than if just used alone so do yourself a favor and pick up a good one along with a sprayer all three of which I bought from this website and so far so good...I plan to re spray in 2 weeks to follow up
20 of 21 people found this review helpful:
Gentrol Bed Bugs
By Tim in Ohio on 09/19/2012
A very good product as it does start the process of eliminating these pest. I had researched the different types of chemicals for these bugs and found GENTROL to be the answer. Dump one bottle in a typical pump garden sprayer and add a gallon of water, I use a old gallon milk jug and bingo, start spraying your headboards and all wood products and soak the area between the base boards and carpet. You may still after a while still see a few but this stops them from pro creating. Maybe I can use this on my 13 yr old daughter?... just kidding... Delivery was very fast and a great place to do business with.
10 of 10 people found this review helpful:
Gentrol is a must for any beg bug spraying regiment
By John in Cincinnati, OH on 06/11/2012
I've been battling bed bugs in a ten unit building. It wasn't until I added Genetrol to my mix that I saw a significant drop in bed bug sightings.
10 of 10 people found this review helpful:
Its working! German cockroaches.
By Ryan on 08/13/2011
Ordered 1oz of Gentrol IGR Concentrate to mix with spray pesticide. Received 30 July 2011 and yesterday, 12 August 2011 my room mates and I started to notice full, unhatched egg pills laying around- three of them to be exact. This is highly abnormal as German cockroaches carry the egg until it is ready to hatch, then hide it. These full, dead eggs were just laying around in the open. The roaches had discarded them! It seems we're well on our way to being pest free in our home FINALLY!
13 of 16 people found this review helpful:
First time user
By Donna in Cincinnati, OH on 12/17/2010
I can not fairly rate this product at this time because this product prevents the adult roaches from populating and shortens life cycle it is a long term solution, but when you need immediate action you will need another treatment and I believe that this company provides those other treatments. I will purchase this product again and recommended to others that are seeking long term solutions. Thank you!
12 of 13 people found this review helpful:
Great Service and Products!
By Matt in Zachary, LA on 11/29/2010
Technically, I could not test Gentrol completely (since it works sort of in a different way than poisons), but I believe in the product. Fourth time I ordered from Domyownpestcontrol.com and the service is wonderful. With my German roach problem, I ordered Demon WP, Maxforce Magnum, and Gentrol. Maxforce Magnum seemed to work the best. In 2 days after applying the bait, approximately 85% were dead. Amazing results.
14 of 16 people found this review helpful:
By Jay in Columbus, OH on 10/31/2010
Got it for bed bugs with Demand CS and the Gentrol IGR. Had a pretty good infestation in my old apartment, well over 50 bugs and uncountable eggs. Just so happened that I was moving anyway so I thought my problems were solved if I cleaned everything well and brushed everything down with an over the counter deltamethrin solution before the move; not the case. I found about 15 bugs about a week after my move the first time I checked my mattress and bed springs. After first use of the sprays (I tank mixed them all together) I found about 8 bugs 2 weeks later, 2 more weeks down to two, now have not found any, checking about three times for over a month. Guess it works :)
18 of 19 people found this review helpful:
Gentrol IGR Concentrate
By Donna in Winnetka, IL on 07/19/2010
Most effective in preventing the insects from maturing and multiplying. I mix it with the other pesticide I am using.
Have a question about this product?
Ask our product experts...
Ask a Question
QCan Gentrol IGR concentrate be diluted with other insecticides?
AYes, Gentrol IGR concentrate can either be applied by itself in a gallon of water, or you can mix it directly with any other insecticide you happen to be spraying with. The Gentrol IGR comes in 1 ounce vials, which is the exact amount you need to mix with each gallon of water or gallon of other insecticide. 1 ounce or 1 vial of Gentrol IGR per gallon of water.
QIf bed bugs walk over dried Gentrol IGR, does it work? Or does it have to be sprayed on a live bedbug?
Does it work with all roaches? If yes, which ones?
AGentrol IGR does not have to be applied directly to bed bugs or roaches to work. It has a residual that can last up to 4 months, so it can be picked up by bed bugs, roaches, drain flies and pantry pests long after it dries. It will work on all species of roaches.
11/20/2012 Joel from Sunnyside,ny
Qcan I spray gentrol on all the walls and ceilings in my apartment?
I have small kids and am worried once the Gentrol dries if the residual is bad for them if they touch the walls? Also I have pets, what happens if I spray the floors, will the residual affect my dogs?
AYou should apply the Gentrol IGR as directed on the product label, directly into cracks and crevices around door frames, window frames, baseboards and under appliances. There is no need to spray the entire wall, ceiling or floor. All children should be out of the area during the application and they can safely return to the treated as soon as it has dried. The dried residual will not have any effect on people or pets even if they touch it. Also, by applying the product directly to cracks, crevices, voids and other inaccessible areas you will be limiting anyone's exposure to the product.
QCan you mix Gentrol IGR Concentrate with Phantom Insecticide?
AYes. Gentrol can be mixed with most insecticides with no problem.
QCan you mix Gentrol IGR Concentrate with Temprid SC?
AYes. Gentrol can be mixed with most insecticides with no problem.
06/14/2015 Darlene from Georgia
QI have a really bad German roach infestation in my apartment I used gentrol mixed with demon wp how long
Will it take to see results. The roaches never seem to disappear its here and there. The most I have seen is about 5-6 in one day. They seem to crawl more when I cook smelly foods. It's very frustrating that I have not stop seeing them in almost 2 years.
AIt can take multiple applications to eradicate roaches using Demon and Gentrol. You would also want to incorparate a quick actinv bait like Maxforce Impact. This way they will be bringing the bait back home with them.
01/20/2015 David from Baltimore
QRespraying over gentrol & temprid
I have a heavy infestation (to me anyway). I sprayed last week w/gentrol & temprid and plan to spray this week with just temprid. Will this weeks spray nullify the gentrol from last weeks spray?
ADue to the fact Gentrol has a long residual spraying Temprid once a week as directed will not void out the Gentrol.
10/04/2014 Paul from Garden Grove, Ca
QWhat do I do with any unused portion of the product after mixing?
I am trying to come up with a game plan for a roach problem and I am planning on mixing this with Demon WP. I am wondering if I do not use the entire gallon of solution can it be saved for a later date?
AWhenever you mix up a solution it needs to be used within 24-48 hours. Since both the Demon WP and Gentrol control other pests than just roaches, you can always spray the outside of the home with the remainder to control ants, spiders, millipedes and other various pests.
04/09/2013 Ryan from Blythe C.a
QCan you mix Gentrol IGR with Demon WP and Talstar in one mixture in a gallon?
AYou can mix Gentrol with either Talstar P or with Demon WP. You should not mix Talstar P and Demon Wp together or it would be like doubling the dosage of either product and would make the application too strong which in turn would make treated surfaces somewhat repellent to insects. When a surface is repellent the insects avoid it and end up in other untreated areas. The idea is to get the insects to cross over the treated areas to eliminate them.
12/04/2012 Quinn from Chelmsford Ma
QIs it safe to be around Gentrol IGR if I am pregnant?
AThere are no special precautions to take for pregnant women when using Gentrol IGR. We do recommend that you let someone else apply any insecticide or IGR and wait for the products to dry before you go back into the treated areas.
09/06/2012 James from Salt Lake Utah
QHow does this product work when coming in contact with the insect?
I'm trying to figure how it works. For example if I spray and then a bug walks across the place where I sprayed once it's dried how does that effect and come in contact with the bug is it just through its feet? Also how long will the product stay there for?
AIt does depend on the type of insect but in general the dried residual of Gentrol IGR will last for 14-120 days. Be sure to read the product label to see how often you should retreat for the pest you are targeting.
06/24/2012 Jenny from Normal, Il
QIf you are spraying Gentrol IGR, what do you do with your cat?
Can a feline become ill due to exposure to this chemical?
AYour cat should be removed from the room where you are applying Gentrol IGR (or any other pesticide) and should not be allowed back into the room until the application has dried. While most cats will not become ill if exposed to Gentrol, some cats are more sensitive to chemicals than others which is why all pesticide product label instructions indicate removal of animals prior to the application. Be sure to read the Gentrol IGR product label for complete usage instructions.
QWhen using Gentrol, how long can you leave it in the sprayer before you dispose of it?
AAfter you dilute Gentrol with water, it should be used within 24 hours. Also, you should not store pesticides in your sprayer as they will break down the rubber hose, seals and gaskets and could even cause damage to to the tank over time. Only mix what you can use at one time.
QHow often can I spray Gentrol for carpet infestations since I am pregnant?
I am dealing with carpet beetles mostly in my bedroom and have sprayed a mixture or Suspend Sc with Gentrol Concentrate around all of our based boards around the house. The majority of the carpet beetles are in our bedroom.
AThere are no special directions for pregnant women. Follow the instructions on the product label. The label states that you should spray once a month for best results. It is also very important that the source of the infestation (where the damaging larva is harboring) is discovered and eliminated, not just the visible adult insects you see wandering around. Until you find out what that is and deal with it you will continue to get more of the carpet beetles emerging from hiding. Carpet beetles may be as likely to feed on grain based food materials as they are on animal byproducts. Pet foods stored in forgotten places, baking goods left too long in the cupboard, rodent baits tossed in the attic - all of these are quite susceptible to carpet beetle feeding. Plus, you also have the typical carpet beetle diets of dead insects (wasp nests in the attic, dead insects in window sills), feathers (bird nests, dead birds), hair (dead rodents, wool products, trophy mounts), and other things made from animal byproducts. Once the source of the infestation is removed or cleaned, use Suspend SC and Gentrol IGR once a month until all of the beetles are gone.
QAfter spraying with Gentrol IGR for bed bugs, when can I re-enter the room?
ATypically, it takes about 30 minutes for the bed bug spray (including Gentrol IGR) to dry. Once it is dry, it is perfectly fine to re-enter the room again. Most people will wait 1 hour just to be safe.