Results 71 to 80 of about 900 (159)

Barley Yellow Dwarf Virus (BYDV) y los áfidos en los arrozales levantinos: una prospección [PDF]

open access: yes, 1986
Se ha llevado a cabo una prospección de las poblaciones emigrantes de áfidos alados en el área de La Albufera de Valencia, zona donde se da el «enrojat» del arroz, enfermedad causada por una raza del Barley Yellow Dwarf Virus, y se discute aquí el ...
Garrido Vivas, A.   +2 more
core  

A new genus and species of asteraceae-inhabiting aphid (hemiptera: aphididae) from Costa Rica and Mexico [PDF]

open access: yes, 2016
P. 323-331Ucrimyzus villalobosi Mier Durante & Pérez Hidalgo gen. n., sp. n. (Hemiptera: Aphididae: Macrosiphini) are described from apterous and alate viviparous females collected on species of genera Bidens, Schkuhria, Senecio and Stevia (Asteraceae:
García-Tejero, Sergio   +5 more
core   +1 more source

Hemiptera community and species responses to grassland sward islets [PDF]

open access: yes, 2016
Sward islet is a term that has been used to describe a patch of longer vegetation in a pasture produced by a reduction in cattle grazing around their dung. They are known to affect the abundance and distribution of grassland arthropods.
Dittrich, Alex D. K., Helden, Alvin J.
core  

Integrated Pest Management Studies of the Cotton Aphid, Aphis Gossypii Glover. [PDF]

open access: yes, 1992
Studies were conducted to characterize insecticide resistance and to document aspects of the basic biology of the cotton aphid, Aphis gossypii Glover, that were related to recommendations for integrated pest management.
O\u27brien, Patti Jane
core   +2 more sources

A new Aphid genus and species (Hemiptera: Aphididae: Macrosiphini) living on ferns in Costa Rica and Mexico [PDF]

open access: yes, 2016
P. 509-520Aphid species colonising ferns belong to the subfamily Aphidinae (Hemiptera: Aphididae) and the majority of these to the tribe Macrosiphini.
Martínez Torres, David   +3 more
core   +1 more source

Aphid species and morphs new to the fauna of Finland (Homoptera, Aphididae, Macrosiphini)

open access: yesEntomologica Fennica, 1990
Collecting data are represented on 26 species and subspecies new to Finland and some morphs are described for the first time. Comments on some species are given and new characters of diagnostic value are described for several species. Acyrthosiphon aurlandicum Heikinheimo, 1966 is a junior synonym of A. brachysiphon Hille Ris Lambers, 1952.
openaire   +3 more sources

Aphididae (Hemiptera: Sternorrhyncha) from Costa Rica, with new records for Central America [PDF]

open access: yes, 2016
P. 145-182Aphididae (Hemiptera: Sternorrhyncha) de Costa Rica, con nuevas citas para América Central. A partir de las capturas en Costa Rica de 64 especies durante 2008 y de los datos registrados se establece el catálogo de los áfidos (Hemiptera ...
Mier Durante, Milagros Pilar   +3 more
core   +1 more source

Phylogenetic Position of Pterocommatinae and Cavariella, and Implications for the Origins of Host Alternation in Aphids [PDF]

open access: yes, 2003
Aphids are morphologically simple. Their numerous hypothesized convergent reductions, such as reduced siphunculi length in association with ant attendance, have made it difficult to define morphological synapomorphies that are necessary for phylogenetic ...
Rowe, Carol A.
core   +1 more source

A new Iranian species of uroleucon mordvilko, 1914 (Hemiptera, Aphididae) from specimens in the Natural History Museum collection [PDF]

open access: yes, 2016
P. 1-6Uroleucon (Uromelan) helichrysi sp. n. (Hemiptera, Aphididae, Aphidinae: Macrosiphini) is established from Iranian apterous and alate viviparous females caught on Helichrysum sp. (Asteraceae) and preserved in the collection of the Natural History
Nieto Nafría, Juan M.   +1 more
core   +2 more sources

Contribución al conocimiento de los pulgones (Hom. Aphidoidea) de las Islas Baleares. I. [PDF]

open access: yes
not ...
Mier Durante, Milagros Pilar   +1 more
core  

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