Results 91 to 100 of about 80,901 (294)

Commodity risk assessment of Populus alba, Populus nigra and Populus tremula plants from the UK

open access: yesEFSA Journal, Volume 23, Issue 3, March 2025.
Abstract The European Commission requested the EFSA Panel on Plant Health to prepare and deliver risk assessments for commodities listed in Commission Implementing Regulation (EU) 2018/2019 as ‘High risk plants, plant products and other objects’. This Scientific Opinion covers plant health risks posed by plants of Populus alba, Populus nigra and ...
EFSA Panel on Plant Health (PLH)   +32 more
wiley   +1 more source

Egg Parasitoids of the Leafhoppers Dalbulus maidis and Dalbulus elimatus (Hemiptera: Cicadellidae) in Two Maize Habitats [PDF]

open access: yes, 2014
Este trabajo fue realizado en dos habitats diferentes de maíz en Mexico, con el objetivo de determinar los parasitoides de huevos de dos importantes chicharritas plagas del maíz en este país.
Luft Albarracin, Erica Beatriz   +3 more
core   +1 more source

Differences in microbiota between two multilocus lineages of the sugarcane Aphid (Melanaphis sacchari) in the continental United States [PDF]

open access: yes, 2020
The sugarcane aphid (SCA), Melanaphis Sacchari (Zehntner) (Hemiptera: Aphididae), has been considered an invasive pest of sugarcane in the continental United States since 1977. Then, in 2013, SCA abruptly became a serious pest of U.S.
Antwi, Josephine B.   +11 more
core   +1 more source

Discreet but diverse and specific: Determining plant‐herbivore interactions across a species‐rich plant family in a tropical rain forest

open access: yesBiotropica, Volume 57, Issue 1, January 2025.
We conducted a year‐long study in Ecuador's Yasuní National Park, focusing on nine understory Annonaceae species to investigate herbivory patterns and herbivore‐host associations. Our findings revealed significant temporal fluctuations in leaf damage, with Anaxagorea brevipes and Unonopsis veneficiorum experiencing higher herbivore pressure, and ...
Paola G. Santacruz Endara   +6 more
wiley   +1 more source

New group of oligosaccharides excreted in honeydew from scale insects Stigmacoccus sp. And coccus hesperidium L. Novo grupo de oligossacarídeos excretado no "honeydew" das cochonilhas Stigmacoccus sp. e coccus hesperidum L.

open access: yesCiência Rural, 2003
Analysis of the honeydew from scale insects Stigmacoccus sp. and Coccus hesperidium (L.) were carried out by paper chromatography, FAB-MS and GC-MS.
Amauri Bogo
doaj   +1 more source

Taxonomy and phylogeny of the Old World jumping plant-louse genus Paurocephala (Insecta, Hemiptera, Psylloidea) [PDF]

open access: yes, 2002
Fifty-one species are recognized in the genus Paurocephala, with an additional 14 species which remain unnamed. Thirty-five species are described as new, and five species are synonymized: P. pumilae and P. zhejiangensis with P.
Burckhardt, Daniel, Mifsud, David
core   +2 more sources

Surface Damaged by Xylotrechus arvicola Larvae on Vitis vinifera: Relationship With Resistance and Breaking Times

open access: yesAustralian Journal of Grape and Wine Research, Volume 2025, Issue 1, 2025.
Background and Aims: The main wine‐producing areas of the Iberian Peninsula are affected by Xylotrechus arvicola, an insect pest species which causes structural and biomechanical damage in vineyards (Vitis vinifera) due to the ingestion of vascular tissues. Methods and Results: To evaluate the mechanical properties of wood affected by X.
Álvaro Rodríguez-González   +10 more
wiley   +1 more source

South American leafhoppers of the tribe Typhlocybini (Hemiptera: Cicadellidae: Typhlocybinae)

open access: yesZoologia (Curitiba), 2013
The fauna of Typhlocybini (sensu stricto, excluding Empoascini) endemic to South America is reviewed and comprises seven closely related genera, five described herein as new, and 55 species, 52 here described as new.
Christopher H. Dietrich
doaj   +1 more source

Generic changes in United States Issini (Hemiptera, Fulgoroidea, Issidae) [PDF]

open access: yes, 2006
Three new genera of the family Issidae are described for species formerly included in the genus Hysteropterum sensu lato: Balduza Gnezdilov and O’Brien, gen. n. (type species: Hysteropterum unum Ball 1910), Stilbometopius Gnezdilov and O’Brien, gen.
Gnezdilov, Vladimir M., O'Brien, Lois B.
core   +1 more source

Effects of Aluminum Foil Mulch on Parasitism and Fecundity of Apterous \u3ci\u3eMyzus Persicae\u3c/i\u3e (Homoptera: Aphididae) [PDF]

open access: yes, 2017
Chinese cabbage plants grown in flats containing either aluminum foil mulch or no mulch cover were uniformly infested with a single apterous adult Myzus persicae (Sulzer) and exposed in a greenhouse to a free-flying population of the parasite Aphidius ...
Cranshaw, Whitney S, Zalmon, Frank G
core   +2 more sources

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