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Nyguard IGR concentrate is a new Insect Growth Regulator with a broad label that delivers excellent results. This will break even the toughest insect's reproductive cycle to stop future infestations.

Product Documents
| Active Ingredient | Pyriproxyfen 10% |
|---|---|
| Target pests |
Ants, Beetles, Crickets, Fleas, Flies, Fungus Gnats, Midges, Moths, Mosquitoes, Roaches (German, Asian, Brown-banded) * See label for complete list |
| For use in |
Commercial & Residential: Indoors & Outdoors: Apartments, Carports, Decks, Food Processing Plants, Hotels, Kennels, Lawns, Landscaping, Livestock, Patios, Poultry Housing, Restaurants, Schools, Warehouses * See label for complete list |
| Application | * See label for complete application instructions |
| Pet safe | Yes, if used as directed on Label |
| Yield | 10 to 27 gallons of solution |
| Formulation | Professional Product |
| NOT FOR SALE TO | VT (Restricted To Licensed Applicators Only) |
| Shipping Weight | 0.40 lbs |
| Manufacturer | MGK |
| EPA Registration | 1021-1603 |
NyGuard IGR is a professional insect growth regulator (IGR) designed to stop infestations at the source by preventing eggs, larvae, and nymphs from developing into breeding adults. Unlike standard insecticides that only target active pests, NyGuard IGR disrupts the insect life cycle to help prevent future infestations for up to 7 months after application. For complete control, NyGuard IGR is commonly tank mixed with a non-IGR insecticide to provide immediate adult pest knockdown while continuing to control immature stages long after treatment.
NyGuard IGR can be used both indoors and outdoors, including in food and non-food handling areas when applied according to the label.
NyGuard IGR works by disrupting the normal development of immature insects, including:
Once exposed, insects cannot mature into reproductive adults. This helps break the breeding cycle and prevent future infestations.
NyGuard IGR may also cause:
NyGuard IGR does not directly kill existing adult insects. Instead, it prevents immature insects from developing and reproducing.
For best results, NyGuard IGR is commonly mixed with a non-IGR insecticide to:
This combination treatment is commonly used for fleas, cockroaches, mosquitoes, ants, and other listed pests.
NyGuard IGR features one of the broadest insect control labels available for an insect growth regulator and is commonly used to control:
See the label for a complete list of pests controlled by NyGuard IGR.
NyGuard IGR can be applied as:
For best results, apply NyGuard IGR in combination with a labeled insecticide to control existing adult insects while preventing immature pests from developing into breeding adults.
The standard mixing rate for NyGuard IGR is 3 mL per gallon of water when tank mixing with most insecticide concentrates. Always follow the label instructions for both products being used.
NyGuard IGR should be diluted with water and applied using a:
For best results, NyGuard IGR is commonly mixed with a liquid insecticide concentrate and applied as a broadcast or crack-and-crevice treatment according to the product label.
Once mixed with water or an insecticide solution, NyGuard IGR should be used within 24 hours. Only mix the amount needed for your immediate treatment.
NyGuard IGR has a shelf life of approximately 3 to 5 years when stored:
NyGuard IGR does not provide an instant kill. Instead, it works over time by disrupting insect development and reproduction. When used with a compatible insecticide, you will achieve:
Reapplication intervals depend on the target pest and severity of the infestation. In many indoor treatment programs, NyGuard IGR is reapplied every 2 weeks initially when combined with an insecticide. Always follow the product label for specific retreatment instructions.
People and pets can re-enter treated areas after the application has completely dried, typically within 2 hours. Once dry, treated areas are safe for children and pets when used according to the product label.
Wait at least 6 hours before watering treated lawns or outdoor areas. Allowing the application to dry completely helps maximize effectiveness.
NyGuard IGR provides residual control for up to 7 months after application. This long-lasting residual helps control immature insects that:
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Sprayed for fleas got prehatched mosquito's
By Norma on 07/10/2012
We used a combination of Nyguard and Talstar 1 early in June. We got an immediate kill on fleas, and other nasty bugs outside, but I wasn't expecting the destruction of the majority of the Mosquito eggs. I have lived in this house in Florida for 21 years. For 21 years I had to stay inside much of the time, at dusk especially but also all day and all night because our area had so many mosquitos. A lot didn't seem to be stopped by repellants either. We had a long dry spell and then about a week and a half after we sprayed, it begain to rain some every day, then it rained all day for several days. We needed it badly but I wasn't looking forward to being swarmed by mosquitos. I was astonished! We have had very few even at dusk, and those who managed to hatch are strange. They fly slow enough so that I can kill them before they ever land. It is like they are can't navigate normally. This is the first summer I have not gotten even one bite. I have been able to enjoy the outside again for the first time ever at this house. I reordered the same items and intend to spray one more time before the month of July is over. Just some advice to those who have houses that back up to woods, we sprayed the wooded area as well as the yard. We sprayed our neighbors yard and the small wooded area behind her house. A lot of mosquitos breed under damp leaves that pile up on the ground here in Florida. Well not anymore at may house! We even sprayed across the road in the brush. Good thing too, because they discovered the mosquitos were carrying West Nile Virus in our area. Best thing I ever did in the rhelm of insect control!
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182 of 190 people found this review helpful
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I am blown away!
By John on 07/31/2012
This is the very best pest control I have ever used! I had an issue with fleas in my dog pen. I could not get them killed out for nothing until I was told about NyGuard. I used every product I could think of and spent a small fortune! A flea or two would attach itself to me when I would clean my dog pen, and next thing I knew is they were in my house too! NOT ANYMORE! This NyGuard mixed with Demize, totally killed out the fleas...inside and out in 24hrs! And they stayed gone. Now I don't even need flea collars for my dogs! Thanks for such a great product. Send me a hat or something so I can advertise for you, because your product is the best on the market...hands down! I am going to purchase more of this product so I never run out. I NEVER toot someones horn unless they deserve it...and NyGuard deserves it! So, TOOT TOOT!
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109 of 112 people found this review helpful
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A true KNOCKOUT
By David on 09/15/2011
After fleas had set up house in ours we attempted to get rid of them in the usual manners (fogging and flea powder). We got desperate and were about to burn down the house (not really) and then I found this site. What a life, and house, saver. Less than 2 hours after application the fleas stopped biting and we have never had a problem since. I use it on my balcony for season long wasp and spider control and swear by it. You can't miss when you pick this product.
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87 of 89 people found this review helpful
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This Product Works!!!!
By Marianne on 06/07/2011
I purchased this product as a safer product to control indoor and outdoor insects (mosquitoes, fleas, flies, roaches, ants, etc....). Nothing bothers me inside or outside after 3 months!!! It's a little slow to start, but once you get it applied around your house and inside your house, your problems are over!!! I had continual repeat flea issues from my Welsh Corgi. I treated the inside of the house and also treated the outside areas where she laid. NO MORE FLEAS!!!! And it does wonders in keeping mosquitoes under control, too!!!!
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68 of 77 people found this review helpful
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Excellent product
By Li on 05/08/2013
The person who was talking about how her cats still have fleas weeks later does not know how this product works. It stops the next generation from growing into viable adults. If you have fleas, you have to do a multi-angled approach and not just spray & pray. Seriously, if you don't know what you're doing. Don't buy the product. I've used this for years on all sorts of issues and it's as close to a magic wand as you're gonna get.
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65 of 73 people found this review helpful
Which, in your opinion is more a effective IGR?
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156 of 166 people found this answer helpful
what is the mixing ratio in a 2 gal sprayer for fleas mainly(roaches,centipedes,spiders(black widow,cane spider) problem using Talstar P and Nyguard IGR? I dont understand the mixing instructions on Nyguard IGR. Please help.
If you want to mix up two gallons of Talstar/Nyguard you will need to add 2 fl oz of Talstar and 6ml of Nyguard in 2 gallons of water and you will need to spray this over a 2,000 sq ft area. Please note that Talstar cannot be broadcast sprayed over carpets and furniture indoors.
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103 of 113 people found this answer helpful
It takes 15-20 gallons to treat around the farm every three (3) weeks. At .4 mL per gallon of water, it would take 60-80 mL. This would cost between $250.00-$350.00 just for the IGR.
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82 of 87 people found this answer helpful
Yes, Bifen IT and NyGuard IGR can be mixed together. You will mix 1 oz. of Bifen IT and 4-8 mL of Nyguard IGR in one gallon of water.
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74 of 79 people found this answer helpful
Onslaught's Technical Bulletin recommends NyGuard IGR for a tank mix IGR, but NyGuard's label doesn't list ticks.
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59 of 64 people found this answer helpful
NyGuard IGR
Rating: 4.5 (108 Reviews / 167 Q&A)