Now showing items 1-10 of 427
Phytochemical analysis and acaricidal activity of Aloe arborescens Mill. extracts against Rhipicephalus (Boophilus) microplus
The indiscriminate use of chemical acaricides has allowed Rhipicephalus (Boophilus) microplus to develop resistance to several active principles. However, botanical extracts have been tested as an alternative method to ...
Determination of LC50 of permethrin acaricide in semi-engorged females of the tick Rhipicephalus sanguineus (Latreille, 1806) (Acari: Ixodidae)
(Academic Press Inc. Elsevier B.V., 2009-11-01)
Currently, the most efficient and widely used method of tick control still is the treatment with acaricides, especially permethrin (active ingredient of the Advantage (R) Max3, Bayer), a pyrethroid with neurotoxic action. ...
Phytochemical study and in vitro acaricidal action of tagetes patula L. (Asteraceae) ethanolic extract against engorged females of Rhipicephalus (Boophilus) microplus.
(In: BRAZILIAN CONFERENCE ON NATURAL PRODUCTS, 5.; ANUAL MEETING ON MICROMOLECULAR EVOLUTION, SYSTEMATICS AND ECOLOGY, 31., 2015, Atibaia. Annals... Campinas: UNICAMP, 2015. Disponivel em http://www.infobibos.com/bcnp/cd/authors.html. Acesso em 3 de dezembro de 2015., 2015)
Acaricide Resistance Status of the Rhipicephalus microplus in Brazil: A Literature Overview.
(Medicinal chemistry, v. 5, n. 7, p. 326-333, 2015., 2015)
Interaction of spirodiclofen with insecticides for the control of Brevipalpus yothersi in citrus
BACKGROUND: The mite Brevipalpus yothersi (Acari: Tenuipalpidae) is of great importance in citriculture because it is a vector of the disease citrus leprosis. The frequency of application of a combination of pesticides has ...
Sublethal effects of acaricides and Nosema ceranae infection on immune related gene expression in honeybees
(EDP Sciences, 2016-04-26)
Nosema ceranae is an obligate intracellular parasite and the etiologic agent of Nosemosis that affects honeybees. Beside the stress caused by this pathogen, honeybee colonies are exposed to pesticides under beekeeper ...
Immune-related gene expression in nurse honey bees (Apis mellifera) exposed to synthetic acaricides
(Pergamon-Elsevier Science Ltd., 2013-02)
The mite Varroa destructor is an ectoparasite affecting honey bees worldwide. Synthetic acaricides have been among the principal tools available to beekeepers for its control, although several studies have shown its negative ...
Action of the insect growth regulator fluazuron, the active ingredient of the acaricide Acatak®, in Rhipicephalus sanguineus nymphs (Latreille, 1806) (Acari: Ixodidae)
The present study evaluated the efficacy of fluazuron (active ingredient of the acaricide Acatak®) and its effects on Rhipicephalus sanguineus nymphs fed on rabbits exposed to different doses of this insect growth regulator. ...
Cytotoxic effects of permethrin in oocytes of Rhipicephalus sanguineus (Acari: Ixodidae) fully engorged females: I. Direct or indirect action of the acaricide in germ cells?
Given the wide use of synthetic chemicals to control ticks, this study evaluated the effects of the permethrin pyrethroid on oocytes of Rhipicephalus sanguineus fully engorged females in order to examine whether this ...
Toxicity effect of the acaricide fipronil in semi-engorged females of the tick Rhipicephalus sanguineus (Latreille, 1806) (Acari: Ixodidae): Preliminary determination of the minimum lethal concentration and LC50
(Academic Press Inc. Elsevier B.V., 2011-02-01)
Chemical acaricides, especially fipronil (active ingredient of Frontline (R)), are still the most effective method to control tick populations. In this study, the effectiveness of fipronil was assessed in semi-engorged ...