Behind the Label: Flea Powder

Fleas and ticks are a profitable market for the chemical/pesticide industry, but ‘convenient’ spot-on flea and tick treatments have come under fire recently. The active ingredients in these pet products used to be organophosphates (such as chlorpyrifos, dichlorvos, phosmet, naled, tetrachlorvinphos, diazinon, or malathion) and carbamates (such as carbaryl or propoxur), but these chemicals are being phased out and replaced by newer insecticides such as imidacloprid. Modern ‘spot-on’ products may not harm pets or humans with the initial exposure, or even after several exposures. Exposed in this way it takes longer for negative effects to reveal themselves. Small chronic exposures add up. As with small children, pets cannot report when they’re being poisoned at low doses.

Source: The Ecologist, 11 January 2011

Use of these types of pesticides is