• Labeled for almost any site
  • Inexpensive
  • Low toxicity,  environmentally friendly


  • Very slow to work (6-8 weeks)
  • Requires low-volume spreader

Active Ingredient: 0.5% s-methoprene, an insect growth regulator (IGR)

 Similar Products: other slow-acting products (Distance®, Esteem®)

 Application Rate, Broadcast: 1 to 1.5 pounds of product per acre (3.5 tablespoons/1000 sq ft)

 Speed of Control: very slow, 3 – 6 months

 Duration of Control: 3 – 12 months after maximum control, varies with reinvasion pressure; one application per year is usually sufficient

 Approximate product cost: $12 per pound (in 25 lb. bags), $12 per acre

 Best used for: applications to large areas where speed of control is not a concern and cost is. One of the few choices for agricultural land of almost any type

 Best season for application: Spring or summer. Fall applications will likely take until the following spring to reach maximum suppression.

 Sources: Commercial pesticide supplies, agricultural suppliers

Toxicity: extremely low (methoprene has been used as a feed through in cattle to control horn flies for many years)

 Agricultural Uses: Labeled for any agricultural use

 Mixing with other products: Labeled for mixing with other products, particularly those containing hydramethylnon or Advion® to speed control

 General Comments: Extinguish® Professional is virtually unrestricted in its use sites, which makes it the product of choice for most agricultural uses. It is also inexpensive. Its only drawback is slow speed of control, but it can be mixed with faster baits to speed control. The 50:50 hopper blend of Extinguish + Amdro® Pro is labeled for pasture use and is a generally better choice for this use than either product applied alone.

 Test results indicate that Extinguish® Professional can be mixed and applied with fertilizer with little loss of effectiveness, IF APPLIED IMMEDIATELY.

 Manufacturer: Wellmark®/Central Life Sciences of Central Garden & Pet

Web site: http://www.centralantcontrol.com/


This site is intended to cover only broadcast-applied fire ant control products and slow acting fipronil containing granular products. Literally dozens of products are available as individual mound treatments. Contact your local Extension Agent or return to https://fireant.tamu.edu for more information on individual mound treatments.

Because of the constantly changing availability of fire ant insecticides, it is virtually impossible to include every product on the market. Mention of a product on this site does not imply an endorsement by Texas A&M AgriLife Extension Service, the Southern Region IPM Center or any cooperating state. Lack of mention does not imply that the product is not an effective fire ant control product.


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