Gentrol IGR Concentrate

$7.78 - $76.95

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4.5 out of 5 stars Rating: 4.6

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For large order quotes, please call us at 1-866-581-7378.

Gentrol IGR Concentrate

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.

* Use roach baits and roach sprays in conjunction with Gentrol Concentrate.


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
Manufactured By: Zoecon


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.

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)

Target Uses

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:

  • Warehouses
  • Food Handling Establishments
  • Schools
  • Hospitals
  • 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.

Dilution Preparation:
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.

Indoors

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.

Outdoors

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.

Extra Tips

  • 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.

Rating Snapshot

5 stars   60
4 stars   15
3 stars   2
2 stars   2
1 star   3

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Average Customer Rating
4.5 out of 5 stars (82)

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Most Helpful Customer Reviews
  • 49 of 52 people found this review helpful:

    4 of 5 stars  This product works! Thank Goodness!
    By Eve in Cocoa Florida on 05/16/2010
    Verified Purchase

    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!

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  • 32 of 32 people found this review helpful:

    5 of 5 stars  The Best.
    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.

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  • 32 of 34 people found this review helpful:

    5 of 5 stars  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.

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  • 23 of 24 people found this review helpful:

    5 of 5 stars  This works!
    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.

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  • 16 of 17 people found this review helpful:

    5 of 5 stars  Gentrol IGR Concentrate
    By Donna in Winnetka, IL on 07/19/2010
    Verified Purchase

    Most effective in preventing the insects from maturing and multiplying. I mix it with the other pesticide I am using.

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Most Recent Customer Reviews
  • 4 of 5 stars  mayan princess
    By Flory in Baldwin Park California on 05/03/2016

    Safe for the Environment not messy not strong odor easy to use. good product very economical. flies no more

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  • 5 of 5 stars  Wicked stuff
    By D. in Independence, KS on 04/27/2016

    I bought a house that had a heavy infestation. I mixed this stuff with the Suspend SC as directed. By the end of the first week after spraying I was seeing very few roaches, but the ones I did see were scary looking. Looked like a cross between a roach and a cricket. By the end of 2 weeks I was seeing one or two per week. I am continuing the follow sprays as directed. Not expecting my problem to show it's ugly head again.

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  • 5 of 5 stars  Best for german roaches
    By Sweetie in CA on 03/31/2016

    Best treatment for german roaches along with boric acid powder for the crevasses. It doesnt take thousands of dollars the Exterminators want to charge to get rid of this annoying pest.

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  • 5 of 5 stars  Great product
    By James in Perry,Ok on 02/21/2016
    Verified Purchase

    Best $7.78 you will ever spend.

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  • 5 of 5 stars  Works Great
    By James in Perry,Ok on 02/20/2016
    Verified Purchase

    Bought the first bottle about a month ago had a great decrease of roaches.Bought the second bottle along with bait and it is killing them off quickly.Will buy more to keep the pest away for good.Also used on bed for bedbugs so far so good.

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  • 5 of 5 stars  Excellent Product
    By Emma in Boynton Beach Florida on 02/01/2016

    We're starting to see them coming out barely moving and it's only been a week. So far I getting good results.

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  • 5 of 5 stars  Bed bug free for 2 yrs!
    By Andrea in Dayton Ohio on 01/30/2016

    I combined Gentrol IGR with Cyonara& BAM!Bugs started dying and disappeared altogether within 3 months.So fast forward 2 yrs. I'm helping out and elderly man I know with bedbugs.Im using the same protocol & things are working out great! I'm a return customer& these products work along with thorough cleaning & vacuuming.

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  • 2 of 5 stars  Gentrol
    By Bill in AR on 01/28/2016

    I have applied the product and there has been a decrease but not an eradication.

    Expert Response   Expert response:
    Please note: Gentrol will not kill insects. Gentrol is a growth regulator so only nymph stages and eggs would be impacted by the application. It will take several months to see complete results from using this product. Please let us know if you have any questions, we are always happy to help!

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  • 1 of 1 people found this review helpful:

    5 of 5 stars  This stuff really works
    By Cheryl in Clendenin, WV on 12/29/2015

    I used this to treat both a roach and bedbug infestation. Ugh. Not sure which is worse. I bought a pint of Suspend insectidide and a pint of Gentrol. Mixed them together in a sprayer. Bamm! No more roaches or bedbugs after about the 3rd treatment. The key to fighting bedbugs is to spray every crack and crevice on your furniture. The sprayer wand allows you to sprat down between all the cushions and between the seat and the back on your sofa. It is a must to do this because this is where they hide out. Hit em where they live. This stuff wirks great abd I recommend it to anyone who has toaches, bedbugs or fleas.

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  • 2 of 2 people found this review helpful:

    5 of 5 stars  This stuff works!!
    By Terri in Fayetteville TN. on 12/14/2015

    This stuff really works!! I just ordered a second bottle. I bought a place little over a month ago and didn't have it inspected before purchase. The day I moved in I realized it had a bad German cockroach infestation. I could flip on the kitchen light at night and see HUNDREDS of filthy roaches on my counter tops!!! GROSS!! I have treated the house with Gentrol ONE TIME and laid out boric acid laced "goodies" every night. Now when I flip on the kitchen light at night I am only seeing 3-4 roaches instead of hundreds. I will reapply once my second bottle gets here and update my review after I see the results. Also I am very chemical sensitive and do not take using poisons in my home environment lightly. I was very nervous about using this when i first applied it. I have had no reactions to Gentrol whatsoever YaY!!

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Most Helpful Q&A's

03/14/2010 Patrick

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.

48 of 48 people found this answer helpful.
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08/08/2010 Anna

QCan you mix Gentrol IGR Concentrate with Phantom Insecticide?

AYes. Gentrol can be mixed with most insecticides with no problem.

22 of 23 people found this answer helpful.
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10/19/2010 George

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.

21 of 22 people found this answer helpful.
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08/08/2010 Anna

QCan you mix Gentrol IGR Concentrate with Temprid SC?

AYes. Gentrol can be mixed with most insecticides with no problem.

18 of 21 people found this answer helpful.
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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.

17 of 18 people found this answer helpful.
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Most Recent Customer Questions

02/04/2016 John from New Bern, Nc

QIs Gentrol IGR safe to use around exotic birds?
Birdfood is put in freezer when it arrives. We've got Indian Meal Moths.

A

It is recommended that you remove pets from the area until Gentrol IGR has dried completely. Once the product has dried, it is safe for the birds to return to the area. We would also recommend using traps for Indian Meal Moths, such as the ProPest Pheronet Pantry Pest Trap.

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10/11/2015 Nahir from Bayamon, Pr

QWhat would happen if a kid licked some of the liquid of Gentrol IGR?

A

Children should be out of the area during treatment until dry when using Gentrol IGR. †When used as directed children should not come into contact with a treated surface while it is wet and the product is only meant to work with insects. The MSDS has further information on safety and does not list any toxicity issues.†You can also check directly with your doctor or the manufacturer if this has happened and there are concerns.†Zoecon can be reached at 800-877-6374.

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10/01/2015 Jerome from Milwaukee, Wi

QCan Gentrol be used for roaches, bed bugs "alone" without a main pesticide?

A

Gentrol IGR will not kill bedbugs or roaches. While you can use it alone we do not recommend you doing so. The bedbugs and roaches that are already mature at the time of the application will continue to mate and reproduce as the growth regulator will not stop this process. The IGR will only stop immature insects from reach sexual maturity and it is not 100% effective on any given generation. Using a growth regulator in conjucntion with an insecticde and a comprehensive elimination program would be recommended. You can learn more about roach and bedbug control by reading our Roach Treatment Guide and our Bedbug Treament Guide

2 of 2 people found this answer helpful.
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09/16/2015 Nino from San Carlos, Ca

QI have an infestation of Indian meal moths using Gentrol IGR.
I have an infestation of Indian meal moths on my storage of dry nuts in the shell (walnut, hazelnut, almond, pecans, peanuts), Can I spray around the nuts storage bins and within the nuts shells or just outside the storage bins?

A

Gentrol IGR cannot be used on anything edible or on any stored food product.  You would direct treatment to cracks and crevices around the storage bins only.

2 of 2 people found this answer helpful.
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09/05/2015 Tyler from Powder Springs

QCan I use Gentrol with Maxforce Fc for roaches? I've been only using the Maxforce and it doesn't seem to be working.

A

Yes, Gentrol would be the missing component. Gentrol will break down the reproductive cycle. Please continue to bait once a week.

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07/30/2015 Julia

QCan Gentrol IGR be harmful to dogs if you bathe them and they roll on an area treated?
Roll on the area which has been sprayed while they're still wet?

A

Gentrol IGR once dry is safe when used as directed. The dried residual will not have any effect on people or pets even if they touch it or if pets contact an area after application while they are wet, it does not reconstitute. You 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 carpet and it is not labeled to do so. All pets should be out of the area during the application, and they can safely return to the treated as soon as it has dried.  By applying the product directly to cracks, crevices, voids and other inaccessible areas you will be limiting anyone's exposure to the product.

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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.

3 of 4 people found this answer helpful.
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05/20/2015 Karla from Hanford Ca

Qif I am only making a half gal tank mix of cyzmic or deltamethrin,or bifinethrin ,do I need to use entire oz
To above questions unfinished, do I have to use entire oz of gentrol when only making a half gal tank mix? Can I just use half oz of gentrol? Will it loose strength if I only use half of the oz?

AIf you are using only a 1/2 gallon of water, you should use only 1/2 oz of Gentrol. The efficacy will not be lost by making this mixture. Be sure to put cap back on concentrate.

1 of 1 people found this answer helpful.
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05/01/2015 Rox from Kennewick Wa

QCan I mix Gentrol and Precor IGR with insecticide?
I am needing to kill and depopulated fleas, roaches and bed bugs.

AYes, Gentrol IGR and Precor IGR can be mixed with insecticides.

2 of 2 people found this answer helpful.
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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. 

8 of 8 people found this answer helpful.
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