Oral toxicity of boric acid and other boron compounds to immature cat fleas (Siphonaptera: Pulicidae).
Klotz J.H. | Moss J.I. | Zhao R. | Davis L.R. Jr. | Patterson R.S.
Oral toxicity was characterized in first-instar cat fleas, Ctenocephalides felis felis (Bouche), feeding on dried blood treated with boric acid. LC50 values ranged from 2.11% after 24 h to 0.21% after 7 d. In carpet tests with five different boron compounds and a number of different formulations, significant mortality for first instars was observed in all eases. In similar tests with prepupae and cocoons, there was no significant effect on mortality. The importance of these results is discussed in light of current application procedures for boron compounds, and suggestions are made for future research.
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