Tag Archives: efficacy

Spartan Mosquito Eradicator vs Pro Tech

Spartan Mosquito Eradicator vs Spartan Mosquito Pro Tech

Here’s a table comparing the two attractive toxic sugar baits (ATSBs) sold by Spartan Mosquito. Please feel free to share on Facebook, Nextdoor, and Pinterest.

If you see anything that needs updating, please let me know.

Notes

  1. Spartan Mosquito no longer makes the Eradicator but it is still available at some retailers.
  2. The company has said for years that it is working on selling refills but I don’t think it will ever happen.
  3. Per the fine print, the 30-day guarantee clock for the Pro Tech starts the day you purchased the device (or the day it was delivered). So if you buy in bulk for future use, that’s something to keep in mind.
  4. Scientists have evaluated the Spartan Mosquito Eradicator and found no evidence it controls mosquitoes. Another team of scientists have determined that salt (the active ingredient in Eradicators) doesn’t kill adult mosquitoes.
  5. The American Mosquito Control Association does not endorse the Spartan Mosquito Eradicator.
  6. The Spartan Mosquito Eradicator is the focus of a $5 million class-action lawsuit.
  7. Here are the approximate ingredient amounts for the Eradicator in case you’d like to make your own refills:  2 1/2 tbsp sucrose, 1 tsp salt, 1/16 tsp yeast. Then add warm water to fill line. Here’s the recipe for 40 refills (feel free to share on Facebook). Refill ingredients cost less than a nickel per tube. To refill a Pro Tech: 0.48 tbsp boric acid, 0.48 cups sucrose, 1/16 tsp brewer’s yeast.
  8. The Environmental Protection Agency is now requiring company to state that the Pro Tech does not eliminate mosquitoes. Company has not yet complied.
  9. Here is my review of the Spartan Mosquito Eradicator.
  10. Here is my review of the Spartan Mosquito Pro Tech.

Posts about Spartan Mosquito

Here are all my posts that mention the Spartan Mosquito Eradicator or the Spartan Mosquito Pro Tech.

  1. Spartan Mosquito Eradicator (review)
  2. 15 mosquito-control strategies that don’t work
  3. Spartan Mosquito v. Colin Purrington
  4. Spartan Mosquito Pro Tech
  5. Class action suit over Spartan Mosquito Eradicators
  6. Scientists find that Spartan Mosquito Eradicators don’t work
  7. Yeast-based mosquito control devices
  8. Does the Spartan Mosquito Pro Tech attract mosquitoes?
  9. Spartan Mosquito Eradicator vs Spartan Mosquito Pro Tech

The company is suing me for my 2019 review (#1). If they hadn’t sued me I likely would have only a single post about the company, which very few people would ever read. But I don’t like bullies and I don’t think large companies should be allowed to use lawsuits to silence critics, so I added more! Please share my reviews on Facebook.

Journalist?

There’s likely a fun story here. Owner of sandwich franchise becomes head of $100 million company that sells tubes of sugar water to kill mosquitoes. Here’s his original pitch:

“We’ve come up with the most economical, easiest, most effective mosquito-control measure pretty much in the world” — Jeremy Hirsch, inventor of the Spartan Mosquito Eradicator (source)

Then he lashes out with SLAPP when naturalist/blogger from Pennsylvania (me) points out the obvious that device is a complete scam. Company then hires the lobbying firm behind Brexit to get a “new and improved” tube approved by EPA (see #4). And it’s not over: in 2021 the class-action lawsuit (see #5) will likely subtract $5 million from Spartan Mosquito’s coffers, not counting the legal fees. Will the FTC get involved like it has for other mosquito-control scams? Does the EPA care it’s been snookered?

Contact me for more details. There’s also extensive coverage of Spartan Mosquito on Twitter (99% of it from me). And the American Mosquito Control Association‘s Science and Technology Committee prepared an extensive report on the company and its devices.

To get a quick feel for the inventors and founders of Spartan Mosquito, here’s a Twitter thread featuring Jeremy Hirsch and Chris Bonner.

Scientists find that Spartan Mosquito Eradicators don’t work

Research conducted in Florida found no evidence that Spartan Mosquito Eradicatiors are effective mosquito-control devices. Here’s the citation:

Aryaprema, V.S., E. Zeszutko, C. Cunningham, E.I.M. Khater, and R.-D. Xue. 2020. Efficacy of commercial toxic sugar bait station (ATSB) against Aedes albopictus. J. Florida Mosquito Control Association 67: 80-83. PDF

Laboratory experiment

Below is a rough reconstruction of the laboratory experiment they conducted. In each of the cages (BugDorm-2120), 100 male and 100 female tiger mosquitoes (Aedes albopictus) were released, then monitored for mortality at 24, 48, and 72 hours.

Schematic of laboratory experiment based on description in Aryaprema et al. 2020.

Below are the cumulative mortality data for the three cages. Result: the Spartan Mosquito Eradicator filled with the provided packet ingredients (treatment) did not result in higher mortality. I.e., there was no evidence the device killed mosquitoes under laboratory conditions.

Field experiment

The researchers also conducted a field experiment using two sites that had large populations of tiger mosquitoes (because of the presence of tires). At each site they deployed five tubes (separated by 4 m), switching whether the tubes were “treatment” or “control” tubes every 2 weeks. A BG-Sentinel trap (without carbon dioxide) was used to quantify mosquito numbers every week.

Schematic of field experiment based on description in Aryaprema et al. 2020.

Below are the weekly numbers of mosquitoes caught in the BG Sentinel traps. Results: there was no evidence that presence of treatment tubes (filled as per company guidelines) reduced the numbers of mosquitoes at the sites.

Conclusions

The scientists concluded that “Both laboratory and field components of our study show that the Spartan Mosquito Eradicator is not effective in reducing abundance of Ae. albopictus.” They speculate that the contents do not attract mosquitoes and that the holes on the device (~3 mm) are too small for mosquitoes to easily reach the fluid inside. They also highlight the need for an experiment to evaluate whether the active ingredient (1% sodium chloride) kills adult mosquitoes. I.e., even if mosquitoes were attracted to Spartan Mosquito Eradicators and could easily get inside, the salt might not be lethal.

Update: the salt experiment has been conducted.