Maui Invasive Species Committee (MISC)

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How to Mix Citric Acid for Coqui Control

Posted on June 23, 2015 by MISC

Follow all label directions. You can find a generic label for citirc acid here: Citric Acid Anhydrous

Making your own citric solution:

  • MISC recommends mixing citric at a 12% solution or 1lb per gallon. The best method is to mix the solution by weight it but if you mix by volume use approximately 2 1/4 cups per gallon.
  • Citric dissolves in solution, but it needs to be thoroughly mixed as a citric chunk will clog your sprayer.
  • We can supply you with citric or you can also purchase it on Amazon. Call coqui crew at 573-6472.

Storage:

  • Do not store citric solution as it will corrode plastic container. Spray out all mixed solution (you may be hitting nests) and rinse sprayer with water after use.
  • Unmixed citric should be kept dry and out of direct sun.

Common-sense caution:

  • Citric may burn some sensitive plants, particularly on new growth, ferns, or orchids. You can reduce damage by rinsing off spray 1 hour after application.
  • Personal Protective Equipment: Citric acid can irritate your skin. Wear shoes, long-sleeves, eye protection and ear protection if applicable (for when using gas-powered sprayers).

Follow all label directions. You can find a generic label for citric acid here: Citric Acid 25b label.  

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Filed Under: Invasive Animals, Solutions Tagged With: Citric solution, homeowner coqui control

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Maui Invasive Species Committee (MISC)
Office: (808) 573-6472
Fax: (808) 573-6475
Mailing Address:
PO Box 983, Makawao, HI 96768

Manager: Adam Radford
E-mail:miscmgr@hawaii.edu

PR/Outreach: Lissa Strohecker
E-mail:miscpr@hawaii.edu

Pest Hotline: 808-643-PEST
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