Fipronil
CAS No. 120068-37-3
April 2005: Advice to use "environmentally-friendly" fipronil “in strategic locations in one’s yard"
to help control deer tick and response from FAN Pesticide Project
 
 

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Adverse Effects

The Bolton Common

http://www2.townonline.com/bolton/opinion/view.bg?articleid=226285

April 15, 2005

Ask Dr. D.

Q: Is there a way to control the deer ticks in my yard?

A. Yes, there is an ingenious solution available, but it requires a little explanation to fully understand it. So here goes... The field mouse is the reservoir for the deer tick that transmits the Lyme disease bacteria. However, if one exterminates the field mice, they will soon be replaced with new field mice carrying more ticks. This solution involves placing little food stations in strategic locations in one's yard. When the field mouse enters the station for a "free lunch," it is coated with an environmentally-friendly compound called fipronil, which kills the ticks. Fipronil is also the active ingredient in a popular flea and tick product called Frontline Top Spot. For more information on this product contact Griggs and Browne at 800-649-9992. For field mice anyway, this product disproves the old adage, "There is no such thing as a free lunch."

Dr. D. (William Damitz) is co-owner of Harvard Veterinary Clinic on Ayer Road and a resident of Bolton. His answers are specific to the way he would handle the question asked in his practice, and pertain to animals, not people. If you have questions about your pet's health or behavior, send them to Dr. D. in care of the Harvard Post or Bolton Common.


Response from FAN Pesticide Project

Submitted to paper (via email) April 17, 2005 - not published

Dr. D. stated that the pesticide fipronil was an “environmentally-friendly” compound and could be placed “in strategic locations in one’s yard” to help control deer tick (April 15, “Ask Dr. D.”, The Bolton Common).

Fipronil is not environmentally-friendly. It is highly toxic to bees, lizards, gallinaceous birds, rainbow trout, bluegill sunfish, and to freshwater aquatic invertebrates.

In 1995, EPA classified Fipronil as a “Possible Human Carcinogen” based on increases in thyroid tumors in both sexes of the rat, which were statistically significant by both pair-wise and trend analyses.

Even with this classification, EPA approved its use in 1997 on an experimental basis for use on rice seed; and in July 1998 they gave it their final approval. Farmers began buying it in March 1999 and used it in Louisiana rice paddies where, for part of the year, crawfish are bred.

In January 2000, a class action suit was launched by the Louisiana crawfish farmers for the significant mortality of their crawfish due to the pesticide ICON (Fipronil) and its degradates. The crawfish farmers alleged that the pesticide devastated Louisiana's 2000 and 2001 crawfish crop. In March 2004, the farmers won their class action with a $45 million settlement. This settlement precludes them from future lawsuits based on human health effects.

In animal studies, fipronil induced other significant adverse health effects, aside from cancerous thyroid tumors.

Parents should be aware that this pesticide, while approved for use by the EPA, might not be advisable for them to use on their property to protect their family from deer-ticks. For more information see http://www.fluorideaction.org/pesticides/epage.fipronil.effects.htm

The use of the term “environmentally-friendly” for chemical poisons is never appropriate.

Ellen Connett
Director,
Fluoride Action Network Pesticide Project
82 Judson Street
Canton NY 13617


See also: May 18, 2005 - Tick box plan kicked out of Nahanton. By Karla Hailer-Fidelman. Newton TAB (MA)
 
Fluoride Action Network | Pesticide Project | 315-379-9200 | pesticides@fluoridealert.org