Good To Know: Homeowner’s Guide to Safer Termite Control
Options for less-toxic fumigation
May/June 2007
By Natural Home staff
Traditional termite pesticides and fumigation methods can be highly toxic—and chemical residue frequently remains long after the application, despite manufacturer claims that it dissipates.
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Fortunately, there are safer options. The method you choose will depend upon the type of termite, how widespread the infestation is and what companies are available in your area. A few options are:
1. Heat: The exterminator tents your house and heats it to high temperatures to kill the pests. (Note: Heat may cause house materials to release toxic vapors or cause wood to expand or contract. A pest-control operator experienced with using heat can advise.)
2. Borates: For existing construction, the provider injects a borate foam mixture into the walls that settles on the wood and repels termites. For new construction, the provider can easily apply borates to wood.
3. Electrocution and microwaves: These are safer spot treatments that may be used in some circumstances.
4. Liquid nitrogen: Some companies use this nontoxic technology to freeze out termites.
Finding less-toxic termite control
• Check manufacturer websites to find a company that offers safer solutions in your area.
• Beware “bait and switch.” Some pest-control companies offer a nontoxic alternative, but then discourage it, using cost and effectiveness as an excuse.
• Confirm that the proposed solution really is safer by checking the termite how-to guide at www.SaferBuilding.com.
Reprinted from SaferBuilding.com, an independent company that conducts research and field tests on nontoxic building materials and methods. For how-to guides or other information on topics such as painting, plumbing, flooring, carpet or carpentry, visit www.SaferBuilding.com.