Results 131 to 140 of about 1,915 (184)

Chemical Composition and Acaricidal Activity of <i>Lantana camara</i> L. Essential Oils Against <i>Rhipicephalus microplus</i>. [PDF]

Plants (Basel)
Ramírez J, Balcázar K, López J, Castillo LN, Ortega R, López HV, Delgado-Fernández E, Vacacela W, Calva J, Armijos C.   +9 more
europepmc   +1 more source

Heterogeneous viromes in the salivary glands, ovaries, and midguts suggested differential viral transmission advantages of six tick genera. [PDF]

mSphere
Ni J, Moming A, Chen Q, Huang Y, Xiao J, Wu Y, Wu X, Li C, Fu L, Bai Y, Fang Y, Wang J, Fan Z, Wang B, Zhang Y, Yin F, Xiong J, Tang S, Guan X, Deng F, Shen S.   +20 more
europepmc   +1 more source

Efficacy of amitraz acaricide footbaths against cattle and goat tick infestations on sites in Highveld and Lowveld regions of Zimbabwe. [PDF]

Parasite Epidemiol Control
Daga O, Hove T, Chikerema S, Grosbois V, Gadzirai C, Stachurski F, Bourgarel M, Guerrini L.   +7 more
europepmc   +1 more source

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Boophilus microplus: Characterization of larval proteases

Experimental Parasitology, 1978
Abstract Studies were made on proteolytic activity for homogenates of larval Boophilus microplus ticks. Maximal activity was recorded at pH 3–3.5 in the 27,000g supernatant fraction. Hydrolysis of bovine serum albumin was inhibited by excess substrate; the optimum concentration was 0.8 mg%.
C I, Reich, J, Zorzópulos
openaire   +2 more sources

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

Assortative Mating between Boophilus Decoloratus and Boophilus Microplus (Acari: Ixodidae)

Journal of Medical Entomology, 1986
Observation of mixed infestations of Boophilus decoloratus and B. microplus on cattle shows that assortative mating occurs. The result is a smaller number of hybrid matings than is expected from random mating. The finding has relevance to studies of species interactions and to attempts at genetic control.
R A, Norval, R W, Sutherst
openaire   +2 more sources

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
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Boophilus microplus: Cattle antienzymes to larval phosphomonoesterases

Experimental Parasitology, 1980
Abstract Cattle with previous experience in infection with the cattle tick, Boophilus microplus, were shown to have significant levels of antienzymes directed against phosphomonoesterases of Boophilus microplus larvae. Cattle without previous experience in infection do not show any antienzymatic activity.
C I, Reich, J, Zorzopulos
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Functional bovine immunoglobulins in Boophilus microplus hemolymph

Veterinary Parasitology, 1996
The aim of the present work was to quantify the passage of bovine immunoglobulins into the hemolymph of the tick Boophilus microplus during the feeding process and to determine their antibody activity. The knowledge is of paramount importance when vector control or blocking of disease transmission is attempted by vaccination of cattle. Approximately 2%
I da S, Vaz Júnior, R H, Martinez, A, Oliveira, A, Heck, C, Logullo, J C, Gonzales, H, Dewes, A, Masuda   +7 more
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Boophilus microplus: Characterization of Enzymes Introduced Into the Host

Australian Journal of Biological Sciences, 1976
A number of enzymes, presumably secreted by larvae of B. micro plus under natural feeding conditions, have been investigated in the skin of previously unexposed calves 4 h after infestation at the attachment site. Carboxylic ester hydrolase activity was demonstrated in the dermis, immediately adjacent to the mouthparts, or in the attachment cone ...
A V, Schleger, D T, Lincoln
openaire   +2 more sources