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Now showing items 1261-1270 of 1849
Revision of the genus Hellica Stål, 1867 and the description of three new genera of South American Lanopini (Hemiptera: Acanthosomatidae: Blaudusinae)
(Museo Argentino de Ciencias Naturales "Bernardino Rivadavia", 2019-12)
Three new genera are described, Epactiohellica based on a new species, E. farinai, Alloeohellica based on another new species A. faundezi, and Hellicoides based on the known species Hellica johni Froeschner. The genus ...
Reproductive and developmental costs of deltamethrin resistance in the Chagas disease vector Triatoma infestans
(Society for Vector Ecology, 2015-06)
Effective chemical control relies on reducing vector population size. However, insecticide selection pressure is often associated with the development of resistant populations that reduce control success. In treated areas, ...
Dispersal of Triatoma infestans and other Triatominae species in the arid Chaco of Argentina - Flying, walking or passive carriage? The importance of walking females
(Fundação Oswaldo Cruz, 2011-03)
The aim of this paper was to analyse the active dispersal of Triatoma infestans and the role of chickens as passive carriers of this insect in peridomestic areas of La Rioja, Argentina. To measure active dispersal, monthly ...
Natural occurrence in Argentina of a new fungal pathogen of cockroaches, Metarhizium argentinense sp. nov.
(Elsevier Science, 2019-05)
The aim of this study was to search for entomopathogenic fungi that infect wild cockroaches in forest ecosystems in two protected natural areas of Argentina. Two isolates of Metarhizium argentinenseBlaberidae: Epilamprinae) ...
Antagonistic effects of a native apple snail on other snails and macroinvertebrates in Southern Pampas waterbodies: a mesocosm approach
(Elsevier Gmbh, 2019-09)
Macroinvertebrates represent an important component of communities and trophic webs of freshwater ecosystems. Pomacea canaliculata (family Ampullariidae), an invasive apple snail native to the Pampas ecoregion, acts as a ...
Botanical monoterpenes synergise the toxicity of azamethiphos in the vector of Chagas disease, Triatoma infestans (Hemiptera: Reduviidae)
(Wiley Blackwell Publishing, Inc, 2020-12)
objective To investigate what toxicological interactions occur when binary combinations of azamethiphos and botanical monoterpenes (eugenol, menthol or menthyl acetate) are applied to Triatoma infestans. methods The toxicity ...
Screening of Argentine native fungal strains for biocontrol of the grasshopper Tropidacris collaris: Relationship between fungal pathogenicity and chitinolytic enzyme activity
(Springer, 2012-04)
Tropidacris collaris (Orthoptera: Romaleidae) is a large and voracious grasshopper, which, in recent years, has become a recurrent pest in increasingly extensive areas of Argentina's northern provinces. In the present work ...
Six new species of Myrsidea Waterston, 1915 (Phthiraptera: Menoponidae) from New World jays of the genus Cyanocorax Boie (Passeriformes: Corvidae), with notes on the chorionic structure of eggs
(Springer, 2015-02)
The only species of previously named Myrsidea Waterston, 1915 from Neotropical jays of the genus Cyanocorax Boie (Passeriformes: Corvidae), Myrsidea fallax Kéler, 1938 (type-host Cyanocorax cyanomelas Vieillot), is redescribed ...
Integument CYP genes of the largest genome-wide cytochrome P450 expansions in triatomines participate in detoxification in deltamethrin-resistant Triatoma infestans
(Nature Publishing Group, 2018-12)
Insect resistance to chemical insecticides is attributed to a combination of different mechanisms, such as metabolic resistance, knockdown resistance, and the cuticular resistance or penetration factor. The insect integument ...
Mutualism effectiveness of a fungal endophyte in an annual grass is impaired by ozone
(Wiley Blackwell Publishing, Inc, 2016-02)
Ozone is an increasing tropospheric contaminant of climate change. Exposure to ozone may affect the symbiotic relationship between plants and beneficial microorganisms. In particular, the herbivore resistance mechanism ...