Results 211 to 220 of about 18,271 (260)

Toxicity of piperonyl butoxide to Boophilus microplus

Nature, 1974
SYNERGISM studies with the cattle tick Boophilus microplus have been effected by enclosing larvae in packets impregnated with olive oil solutions of the test chemicals and recording mortality after 48 h1,2. In these conditions larvae exposed continuously to 0.4% piperonyl butoxide were apparently unaffected.
C A, Schuntner, W J, Roulston, R H, Wharton   +2 more
openaire   +2 more sources

Rhipicephalus (Boophilus) microplus ticks as reservoir and vector of 'Candidatus Mycoplasma haemobos' in China.

Veterinary parasitology, 2019
'Candidatus Mycoplasma haemobos' is an emerging pathogen in the genus Mycoplasma. The Rhipicephalus (Boophilus) microplus tick has been suspected to be the vector of 'C. M. haemobos'. To determine the role of R. (B.) microplus in transmission of 'C.
Hongfei Shi, Lisha Duan, Fei Liu, Yun Hu, Zhaorong Shi, Xiaoying Chen, Huan Yang, Baolong Yan, L. Yao   +8 more
semanticscholar   +1 more source

Repellent Effects of Encapsulated Carvacrol on the Rhipicephalus (Boophilus) microplus (Acari: Ixodidae)

Journal of medical entomology, 2019
Rhipicephalus (Boophilus) microplus (Canestrini) is a problem for livestock production systems, and its control has become challenging due to the selection of tick populations resistant to synthetic chemical acaricides.
A. Lima, G. Landulfo, L. Costa-Júnior
semanticscholar   +1 more source

Test for Assortative Mating Between Boophilus microplus and Boophilus annulatus (Acari: Ixodidae)

Journal of Medical Entomology, 1992
The closely related cattle ticks, Boophilus microplus (Canestrini) and B. annulatus (Say), were tested for possible assortative mating under conditions designed to mimic those in the field. Patterns in the numbers of the four possible types of matings were generally indicative of a preference for conspecific mates in both species.
L R, Hilburn, R B, Davey
openaire   +2 more sources

Life cycle of the southern cattle tick, Rhipicephalus (Boophilus) microplus Canestrini 1888 (Acari: Ixodidae) under laboratory conditions

Systematic and Applied Acarology, 2018
The southern cattle tick, Rhipicephalus (Boophilus) microplus is one of the most important tick species affecting bovine wealth worldwide. Three uninterrupted generations of this species were observed under laboratory conditions (28±3 °C and 80±5% R.H ...
Haytham Senbill, L. K. Hazarika, A. Baruah, Deepak Kumar Borah, B. Bhattacharyya, S. Rahman   +5 more
semanticscholar   +1 more source

Boophilus microplus: Passive Transfer of Resistance in Cattle

The Journal of Parasitology, 1976
Plasma from cattle highly resistant to the tick Boophilus microplus conferred some resistance to unexposed calves. In contrast plasma from hosts of low resistance had no significant effect compared with plasma from unexposed donors.
J A, Roberts, J D, Kerr
openaire   +2 more sources

Efficacy of Azadirachta indica extracts against Boophilus microplus

Parasitology Research, 2008
Extracts were prepared from leaf, bark, and seed of Azadirachta indica, leaf and seed of Prunus persica, bark of Mangifera indica, and leaf of Psidium guajava and were evaluated against Boophilus microplus. Of the eight extracts screened, the extracts prepared from the A.
Rahul, Srivastava, S, Ghosh, D B, Mandal, P, Azhahianambi, P S, Singhal, N N, Pandey, D, Swarup   +6 more
openaire   +2 more sources

Parthenogenesis in the Cattle Tick, Boophilus microplus

Nature, 1963
ALTHOUGH bisexual reproduction is usual among ticks, there have been reports of parthenogenesis in various species including Amblyomma agamum1, Rhipicephalus bursa2, A. dissimile3, Hyalomma anatolicum4, Ornithodorus moubata5, and Haemaphysalis bispinosa6; but there appears to be no previous record of parthenogenesis in Boophilus microplus.
openaire   +2 more sources

Responses of cattle to allergens from Boophilus microplus

International Journal for Parasitology, 1978
Abstract Extracts of larvae of the cattle tick, Boophilus microplus , contain two allergens giving immediate hypersensitivity reactions in the skin of cattle which have been exposed to the tick. The partial purification of one of these is described. This, together with the other allergen whose purification has been described previously, was used to ...
P, Willadsen, P G, Williams, J A, Roberts, J D, Kerr   +3 more
openaire   +2 more sources

Boophilus microplus: Strain differences of the cholinesterase system

Experimental Parasitology, 1978
Abstract Cholinesterase (EC 31.1.7 and EC 31.1.8) activity was determined for homogenates of two Argentinian strains of larval ticks, Boophilus microplus . One strain (strain A) was sensitive to organophosphate acaricides. The other strain (strain G) was insensitive to coumaphos and to a lesser degree to other acaricides.
C I, Reich, J M, Torrado, A P, Arrieta, J, Zorzópulos   +3 more
openaire   +2 more sources