نتایج جستجو برای: infestation levels

تعداد نتایج: 927739  

Journal: :Journal of fish diseases 2008
F Lees G Gettinby C W Revie

Analyses of a unique database containing sea lice records over an 11 year period provide evidence of changing infestation patterns in Scotland. The data, collected from more than 50 commercial Atlantic salmon farms, indicate that both species of sea lice commonly found in Scotland, Lepeophtheirus salmonis and Caligus elongatus, have declined on farms over the past decade. Reductions for both sp...

Journal: :Journal of medical entomology 2006
X Porcasi S S Catalá H Hrellac M C Scavuzzo D E Gorla

The impact of control activities against Triatoma infestans (Klug) (Hemiptera: Reduviidae) in South America has a marked contrast within and outside the Gran Chaco region. Development of a geographic information system, as part of an improvement in control program activities, allowed analysis of the spatial pattern of house infestations by T. infestans before and after house spraying with delta...

Journal: :Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc 2016
Annette Roug Pamela Swift Birgit Puschner Greg Gerstenberg James W Mertins Christine Kreuder Johnson Steve Torres Jack Mortensen Leslie Woods

Infestation with nonnative, "exotic" lice was first noted in Washington black-tailed deer (Odocoileus hemionus columbianus) in 1994 and has since then spread throughout the western United States. In California, infestation with the exotic louse Damalinia (Cervicola) sp. was first detected in black-tailed deer from northern California in 2004, and, in 2009, the exotic louse species Bovicola tibi...

2015
Xin-Zheng Huang Jie-Yin Chen Hai-Jun Xiao Yu-Tao Xiao Juan Wu Jun-Xiang Wu Jing-Jiang Zhou Yong-Jun Zhang Yu-Yuan Guo

In response to insect herbivory, plants emit elevated levels of volatile organic compounds for direct and indirect resistance. However, little is known about the molecular and genomic basis of defense response that insect herbivory trigger in cotton plants and how defense mechanisms are orchestrated in the context of other biological processes. Here we monitored the transcriptome changes and vo...

2002
Jennifer Pontius Richard Hallett Mary Martin

Preliminary data from 45 hemlock woolly adelgid monitoring plots across the Northeast indicate that a suite of macronutrients is strongly associated with adelgid infestation and hemlock decline. Although it is unclear whether specific chemical characteristics cause (palatability effect) or result (defensive strategy) from infestation, N, Ca, K, and Mn were all significantly (p < 0.01) higher on...

2018
Aline Chimello Ferreira Francisco Chiaravalloti Adriano Mondini

OBJECTIVE To describe the epidemiology of dengue in a medium-sized city in the state of São Paulo. METHODS Data, such as circulating serotypes, severe cases and deaths, age group, sex, among others, were obtained on reported and confirmed dengue cases in Araraquara, state of São Paulo, between 1991 and 2015. Climatic and infestation data were also analyzed. These variables were evaluated descri...

2015
Sandra M. De Urioste-Stone Pamela M. Pennington Elizabeth Pellecer Teresa M. Aguilar Gabriela Samayoa Hugo D. Perdomo Hugo Enríquez José G. Juárez

BACKGROUND Integrated vector management strategies depend on local eco-bio-social conditions, community participation, political will and inter-sectorial partnership. Previously identified risk factors for persistent Triatoma dimidiata infestation include the presence of rodents and chickens, tiled roofs, dirt floors, partial wall plastering and dog density. METHODS A community-based interven...

Journal: :Turkiye parazitolojii dergisi 2011
Önder Akkaş Zeynep Taş Cengiz

OBJECTIVE This study was carried out to detect the prevalence and evaluate risk factors of Pediculus capitis infestation in four primary schools in Iğdır in April and May, 2010. METHODS The study was performed on 2222 students (6-15 years old), 1116 female and 1106 male. The hair of the students, especially from the neck and back of the head, were examined for egg, nymph and imago of P. capit...

2015
Laura Ponson Frédéric Andersson Wissam El-Hage

BACKGROUND The pathophysiology and appropriate pharmacological interventions for delusional infestation remain unknown. CASE PRESENTATION Here, we report a case of primary delusional infestation successfully treated with aripiprazole. We performed functional magnetic resonance imaging (fMRI) to investigate brain structures and functional modifications. Before antipsychotic treatment, pre- ver...

Journal: :journal of arthropod-borne diseases 0
b mosallanejad department of clinical sciences, faculty of veterinary medicine, shahid chamran university of ahvaz, ahvaz, iran ar alborzi department of pathobiology, faculty of veterinary medicine, shahid chamran university of ahvaz, ahvaz, iran n katvandi department of pathobiology, faculty of veterinary medicine, shahid chamran university of ahvaz, ahvaz, iran

background:   the objective was to determine the prevalence of ectoparasite infestations in referred companion dogs to veterinary hospital of shahid chamran university of ahvaz, from 2009 to 2010 . methods: a total of 126 dogs were sampled for ectoparasites and examined by parasitological methods. the studied animals were grouped based on the age (<1 year, 1–3 years and >3 years), sex, breed an...

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