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Fipronil is toxic to bees and should not be applied to vegetation when bees are foraging. [28] Based on ecological effects, fipronil is highly toxic to upland game birds on an acute oral basis and very highly toxic on a subacute dietary basis, but is practically nontoxic to waterfowl on both acute and subacute bases. [7]
This pesticide is toxic to aquatic organisms, including fish and aquatic invertebrates. Runoff from treated areas or deposition into bodies of water may be hazardous to fish and other aquatic organisms. Etofenprox is highly toxic to bees exposed to direct treatment on blooming crops or weeds.
Chemical structure of fipronil, a common phenylpyrazole insecticide. Phenylpyrazole insecticides are a class of chemically-related broad-spectrum insecticides. [1] The chemical structures of these insecticides are characterized by a central pyrazole ring with a phenyl group attached to one of the nitrogen atoms of the pyrazole.
If you’re unsure whether your cat needs a medical evaluation, try calling the ASPCA Animal Poison Control Center (888-426-4435) or the Pet Poison Hotline (855-764-7661).
While plants make good additions to most homes, some can carry toxic substances that are unsafe for pets. Avoid these 12 if you have furry pals at home.
A comparison of 3 insecticides (selamectin, fipronil, imidacloprid) showed that selamectin reduced larval cat fleas ≥93.5% after 24 h at doses of ≥0.3 μg. In contrast, at 24 h neither fipronil nor imidacloprid reached 90% reduction, even at the highest doses tested (0.5 μg for fipronil and 5.0 μg for imidacloprid).
Bravecto 1-Month was approved by the FDA in November 2024 for the addition of the indication for the treatment and control of Haemaphysalis longicornis (Asian longhorned tick) infestations for one month in dogs and puppies eigjht weeks of age and older, and weighing 4.4 pounds (2.0 kg) or greater. [26] [27]
The selective toxicity of neonicotinoids like thiamethoxam for insects versus mammals is due to the higher sensitivity of insects' acetylcholine receptors. [15] The Food and Agriculture Organization (FAO) of the U.N. assessed thiamethoxam as "moderately hazardous to humans (WHO class III)", because it is harmful if swallowed.