Frontline is disgusting. It's neurotoxic to dogs and humans. It's also an environmental toxin that effects bees and fish and such.
Brilliant as it stops the wee buggers from biting. fleas and ticks can carry various diseases including lymes disease. I would rather use something that is effective for my animals and thus protecting my family from potentially worse things.What does brilliant mean, tiggerific? Harmful to human health and the environment?
Just out of curiosity, where are you getting your info? I have a very hard time believing that if this were proven in any way, vets would not go around endorsing it so much. I know the vets I use for my pets adore animals and would not be endorsing a product that was that dangerous to them.
Mode of Action
Fipronil is an extremely active molecule and is a potent disruptor of the insect central nervous system via the (-aminobutyric acid (GABA) regulated chloride channel(25). Despite the fact that the GABA channel is important in nerve transmission in both vertebrate and invertebrate animals(26), and that fipronil does bind to the GABA receptor in vertebrates, the binding is ‘less tight” which offers a degree of selectivity(27).
Acute Toxicity
Fipronil is classed as a WHO Class II moderately hazardous pesticide and has a rat acute oral LD50 (the dose required to kill half a population of lab animals) is 97 mg/kg(35). It is less toxic to mammals than to some birds, fish and most invertebrates.
Fipronil has moderate acute toxicity by the oral and inhalation routes in rats. Dermal absorption in rats is less than 1% after 24 h and toxicity is considered to be low. In contrast, it is of moderate dermal toxicity to rabbits(36).
The photodegradate MB46513 appears to have a higher acute toxicity to mammals than fipronil itself by a factor of about 10(37).
Brilliant as it stops the wee buggers from biting. fleas and ticks can carry various diseases including lymes disease. I would rather use something that is effective for my animals and thus protecting my family from potentially worse things.
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I assure you the poisons you use are worse for your brain and health than the risk of Lyme disease.
Much better for putting around the house than those oils you listed are diatomaceous earth or sodium tetraborate.