Results 91 to 100 of about 164,295 (257)

Epidemiological analysis of pediculosis and the distribution of kdr mutation frequency in head lice populations in Torbat Heydarieh city of Khorasan Razavi Province, Northeastern Iran

open access: yesBMC Research Notes
Head lice infestations are the most prominent ectoparasitic infection in the world, including Iran, particularly among school children. Recently, numerous cases of infestation have been reported in various provinces of the country.
Mohammad Taheri   +6 more
doaj   +1 more source

Saprolegnia infections of salmonid fish [PDF]

open access: yes, 1982
This paper deals firstly with the identification and characteristics of fungal pathogens that colonize salmonids and then considers the relative importance of the condition of the host fish and the environmental factors which may influence the ...
Pickering, A.D., Willoughby, L.G.
core  

Biological control in the Maltese Islands - past initiatives and future programmes [PDF]

open access: yes, 1997
Past records of introduced predators and parasites for biological control programmes in the Maltese Islands are reviewed. Literature on this subject is very limited, difficult to obtain and to confirm.
Mifsud, David   +1 more
core   +1 more source

Population genetics of ectoparasitic mites suggest arms race with honeybee hosts

open access: yesScientific Reports, 2019
The ectoparasitic mite, Varroa destructor, is the most severe biotic threat to honeybees (Apis mellifera) globally, usually causing colony death within a few years without treatments. While it is known that a few A.
Alexis L. Beaurepaire   +5 more
semanticscholar   +1 more source

In Vitro and In Vivo Effect of Amitraz on Honey Bee Drone Sperm Quality

open access: yesActa Zoologica, Volume 106, Issue 4, Page 493-502, October 2025.
ABSTRACT Honey bee hive infestation by the ectoparasitic mite, Varroa destructor, has been a major cause of declining populations. Treating such infestations is important for sustainability. Knowledge about the sub‐lethal effects of commonly used acaricides on drone reproductive health, particularly sperm quality, is limited. The effect of in vitro and
Janice Faith Murray   +3 more
wiley   +1 more source

Determination of diflubenzuron residues in milk and cattle tissues

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2013
Diflubenzuron (DFB) is used to control ectoparasitic infestation by inhibiting larvae development in the manure and feces of treated animals. It is also currently been used to control tick infestations. In this study, milk and tissues from cattle treated
S.A.V. Tfouni   +8 more
doaj   +1 more source

First documentation of in vivo and in vitro ivermectin resistance in Sarcoptes scabiei [PDF]

open access: yes, 2004
Ivermectin is increasingly being used to treat scabies, especially crusted (Norwegian) scabies. However, treatment failures, recrudescence, and reinfection can occur, even after multiple doses.
Currie, Bart John   +3 more
core   +1 more source

Inside Honeybee Hives: Impact of Natural Propolis on the Ectoparasitic Mite Varroa destructor and Viruses

open access: yesInsects, 2017
Social immunity is a key factor for honeybee health, including behavioral defense strategies such as the collective use of antimicrobial plant resins (propolis).
Nora Drescher   +4 more
semanticscholar   +1 more source

How do parasites and predators choose their victim? A trade‐off between quality and vulnerability across antagonistic interactions

open access: yesBiological Reviews, Volume 100, Issue 5, Page 2099-2115, October 2025.
ABSTRACT From blood‐sucking lice and food‐stealing gulls to pandemic‐inducing viruses and egg‐eating snakes: parasites and predators are ubiquitous in shaping ecology and evolution. Fundamental to these interactions is the way in which parasites and predators choose their victim. Here, I argue that a trade‐off between host quality and vulnerability can
Mairenn C. Attwood
wiley   +1 more source

Molecular phylogenetics of lice collected from Indian goats and their neglected vector potential

open access: yesJournal of Basic and Applied Zoology
Background Ectoparasitic infestations, particularly lice, are a major challenge to goat farming in India, leading to significant economic losses through reduced productivity and increased mortality.
Andrews Megha   +5 more
doaj   +1 more source

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