2001
DOI: 10.1590/s0037-86822001000400005
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Abstract: The action of fenthion was studied in a 15% epicutaneous formulation upon Rhipicephalus sanguineus, which may transmit pathogens to men and other animals, such as Ehrlichia, Babesia and Ricketsia. Dogs were artificially infected for the trial. The fenthion bioassays were begun four months after artificial infestation. The test group, having a mean of 186 ticks per dog, received the formulation dosage according to body weight on the neck region. Tick counts were performed, considering diameters > or = 2mm, duri… Show more

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Cited by 6 publications
(6 citation statements)
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“…Based on the results of the current study, M. pubescens should be recognized as an future alternative acaricide for the control of Brown Dog tick. These results reinforce the importance of the preservation of this soapberry in its natural biome.KEY WORDS: Botanical acaricide, soapberry, tingui, tick controlThe resistance related in Rhipicephalus sanguineus (Latreille) to some synthetic acaricides in some parts of the world (Fernandes 2000, Fernandes & Freitas, 2001, Miller et al 2001, together with the well-documented damage that these compounds can cause to the environment have resulted in a worldwide trend towards reducing their use as much as possible. In Brazil, acaricide resistance in R. sanguineus to some pirethroids was fi rst recorded by Fernandes (2000), in Goiânia, State of Goiás.…”
mentioning
confidence: 99%
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“…Based on the results of the current study, M. pubescens should be recognized as an future alternative acaricide for the control of Brown Dog tick. These results reinforce the importance of the preservation of this soapberry in its natural biome.KEY WORDS: Botanical acaricide, soapberry, tingui, tick controlThe resistance related in Rhipicephalus sanguineus (Latreille) to some synthetic acaricides in some parts of the world (Fernandes 2000, Fernandes & Freitas, 2001, Miller et al 2001, together with the well-documented damage that these compounds can cause to the environment have resulted in a worldwide trend towards reducing their use as much as possible. In Brazil, acaricide resistance in R. sanguineus to some pirethroids was fi rst recorded by Fernandes (2000), in Goiânia, State of Goiás.…”
mentioning
confidence: 99%
“…The resistance related in Rhipicephalus sanguineus (Latreille) to some synthetic acaricides in some parts of the world (Fernandes 2000, Fernandes & Freitas, 2001, Miller et al 2001, together with the well-documented damage that these compounds can cause to the environment have resulted in a worldwide trend towards reducing their use as much as possible. In Brazil, acaricide resistance in R. sanguineus to some pirethroids was fi rst recorded by Fernandes (2000), in Goiânia, State of Goiás.…”
mentioning
confidence: 99%
“…Although several compounds have been evaluated in vitro for efficacy against larval or nymphal stages of ticks [20,[26][27][28][29][30], reports of in vivo trials in dogs to determine efficacy against immature stages of ticks are sparse [25]. However, limited field trial data from dogs indicate efficacy [30]; data gleaned from in vivo experiments in other animals with other acaricides also indicate efficacy [25,27]. Oral fluralaner (Bravecto ® ) is labeled for the treatment and control of A. americanum for 8 weeks and R. sanguineus (s.l.)…”
Section: Discussionmentioning
confidence: 99%
“…Controlling these ticks is difficult because of the increase of some strains of resistance to acaricides such as pyrethroids and the inefficacy of other compounds (Fernandes and Freitas 2001;Miller et al 2001), so new agents and alternative strategies are necessary. According to Gionetto and Chávez (2000), metabolites of plant origin reduce the persistence and accumulation of pesticides in the environment, being biodegradable and showing no side effects.…”
Section: Introductionmentioning
confidence: 99%