Results 41 to 50 of about 2,780 (160)

Áfidos vectores del virus del enanismo amarillo de la cebada (BYDV) en cultivo de trigo en el Paraguay

open access: yesInvestigación Agraria, 2021
El Barley yellow dwarf virus o Virus del Enanismo Amarillo de la Cebada (BYDV) es una de las enfermedades transmitidas por áfidos presente en muchas regiones productoras de trigo del mundo, causando mermas importantes en la producción.
Rebeca González Torres   +3 more
doaj   +1 more source

Aphids (Insecta: Hemiptera: Aphididae) of Aligarh region of Uttar Pradesh, India

open access: yesJournal of Threatened Taxa, 2009
Five species of Aphids, Aphis craccivora Koch, Aphis gossypii Glover, Aphis neeri B.d.Fons., Rhopalosiphum padi (Linnaeus) and Rhopalosiphum rufiabdominalis (Sasaki) belonging to the subfamily Aphidinae are reported from Aligarh District.
M.K. Usmani, U. Rafi
doaj   +1 more source

Occurrence and parasitism of aphids (Hemiptera: Aphididae) on cultivars of irrigated oat (Avena spp.) in São Carlos, Brazil

open access: yesBrazilian Archives of Biology and Technology, 2004
The interactions between aphids and their Hymenopteran parasitoids on irrigated oats as well as the response of different cultivars of cereals regarding the resistance to these aphids and the influence on the host/parasitoid relationships were studied ...
Júlio Cesar Ronquim   +2 more
doaj   +1 more source

Population dynamics and species composition of maize field parasitoids attacking aphids in northeastern China.

open access: yesPLoS ONE, 2020
Maize, Zea mays L., is the most abundant field crop in China. Aphids are the most economically damaging pest on maize, particularly in the maize agri-ecosystems of Jilin Province, northeastern China.
Ying Zhang   +4 more
doaj   +1 more source

Detection and geographic distribution of seven facultative endosymbionts in two Rhopalosiphum aphid species

open access: yesMicrobiologyOpen, 2019
Study of the mutualistic associations between facultative symbionts and aphids are developed only in a few models. That survey on the situation and distribution of the symbionts in a certain area is helpful to obtain clues for the acquisition and spread ...
Jianqing Guo   +5 more
doaj   +1 more source

BIOLOGICAL ASPECTS AND THERMAL REQUIREMENTS OF THE BIRD CHERRY-OAT APHID, Rhopalosiphum padi (LINNAEUS), REARED ON WHEAT SEEDLINGS [PDF]

open access: yesJournal of Plant Protection and Pathology, 2015
The bird cherry-oat aphid, Rhopalosiphum padi (Linnaeus) was studied at 15, 20 and 25oC constant temperatures. Wheat seedlings were offered for feeding and maintaining the aphid, R. padi using the Punctured Ependorf Tube Technique. R.
A. Shehawy   +2 more
doaj   +1 more source

De novo transcriptome analysis and microsatellite marker development for population genetic study of a serious insect pest, Rhopalosiphum padi (L.) (Hemiptera: Aphididae). [PDF]

open access: yesPLoS ONE, 2017
The bird cherry-oat aphid, Rhopalosiphum padi (L.), is one of the most abundant aphid pests of cereals and has a global distribution. Next-generation sequencing (NGS) is a rapid and efficient method for developing molecular markers.
Xinle Duan   +5 more
doaj   +1 more source

Особенности формирования фенетической структуры популяции тлей и методы ее диагностики на примере черемухово-злаковой тли Rhopalosiphum padi (L.) (Hemiptera: Aphididae) (часть 1)

open access: yesВестник защиты растений, 2018
Текст статьи представлен в 2-х частях. В первой части приводится краткий обзор материалов, связанных с клональным разнообразием, репродуктивным и крыловым полиморфизмом и полифенизмом, механизмами детерминации морф, специфики их развития и роли в ...
Е.С. Гандрабур   +1 more
doaj   +1 more source

Field-Evolved Sulfoxaflor Resistance of Three Wheat Aphid Species in China

open access: yesAgronomy, 2021
Sulfoxaflor belongs to a new class of insecticides which are effective against many sap-feeding pests. Sitobion miscanthi, Rhopalosiphum padi, and Metopolophium dirhodum are the predominant pests coexisting on wheat plants.
Xinan Li   +10 more
doaj   +1 more source

Non-host volatiles do not affect host acceptance by alate virginoparae of Rhopalosiphum padi (Hemiptera: Aphididae) settled on the host plant surface

open access: yesEuropean Journal of Entomology, 2005
Using electrical penetration graphs to monitor aphid feeding, it was shown that volatiles of a non-host plant (alfalfa, Medicago sativa L.) did not disrupt the process of host acceptance by alate virginoparae of the birdcherry-oat aphid, Rhopalosiphum ...
Ruby OLIVARES-DONOSO   +1 more
doaj   +1 more source

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