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Pyronyl UL-100 Concentrate

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Pyronyl UL-100 Concentrate is an insecticide that can be mixed with oil (not water) to effectively control a broad spectrum of crawling and flying insects in livestock areas or on animals. Can be used in a variety of ways: contact spray, or cold or thermal fogger. The active ingredient PBO is used to block the insect's resistance to insecticides, maximizing efficacy for quick killing.

Pyronyl UL-100 Concentrate should be kept out of reach from children.

Target Pests

Pyronyl UL-100 is labeled to kill Flying and crawling insects including mosquitoes (adult and larval) biting flies cockroaches mites earwigs boxelder bugs ants mealworms gnats moths beetles ticks spiders fruit flies skippers waterbugs wasps and weevils.

For Use In

Pyronyl UL-100 should be used in areas such as livestock areas Federally inspected meat and poultry plants ANIMAL QUARTER USE (Cattle barns horse barns poultry houses swine houses zoos) For in transit protection spray truck beds boxcars and ships' hold. Authorized by U.S.D.A. for use in Federally inspected meat and poultry plants. Pyronyl UL-100 can be used in a variety of ways: as an undiluted/diluted indoor space spray contact and surface spray outdoor ground applications or used as an outdoor fogging application.


See product label above for specific use applications.

Coverage Area

Varies based on application.

Time to Kill

Pyronyl UL-100 will kill target pests on contact.

Active Ingredient

Pyrethins 1.0%, Piperonyl Butoxide (PBO) 2.0%, N-octyl bicycloheptene dicarboximide 2.94%

Pyronyl UL-100 Concentrate

Product Q & A

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Browse 4 questions Browse 4 questions and 3 answers
Mode of kill?
A shopper on Jun 4, 2018
BEST ANSWER: Quick Kill, contact kill
UL-100 Can it be used in a ulv flogger if mixed with kerosene at 9/1??.
Cannot be mixed with water in a ulv flogger???
A shopper on May 14, 2018
BEST ANSWER: The Pyronyl UL-100 can be applied with the use of a ULV fogger. The product would not need any dilution we are wanting to apply the product as is. At the rate of 1 fl oz per 1,000 cubic feet of room space. The product can also be applied as a surface spray, contact, spot, crack and crevice spray. With this application, it is required to mix the product with oil. Please refer to the product label for full instructions.
What type of oil do you use and where do you get it?
Dennis on Sep 9, 2016
BEST ANSWER: If you are using a thermal fogger we recommend odorless mineral spirits. They can be found at any hardware or home repair store. We carry mineral spirits in a 55 gallon drum if you are interested in that... It should be about $10 per gallon at the hardware store.
Will this work on Brown Recluse and Black Widows? I have a bad infestation of both under my trailer, and I can't get to the pipe leak because of them. Can I buy this and a fogger? Thanks everyone!
nbuchanan94 on Jun 6, 2018

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