Results 51 to 60 of about 3,316 (209)

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

Вестник 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, А.Б. Верещагина   +1 more
doaj   +1 more source

Activity of Enantiomers of Sulcatol on Apterae of Rhopalosiphum padi

Journal of Chemical Ecology, 1998
GC-MS analysis of volatiles released from wheat infested with a high density of aphids showed the presence of 6-methyl-5-hepten-2-ol (sulcatol). The proportion of enantiomers present in the volatiles was determined by esterifying the mixture with (1S)-( − )-camphanic chloride and quantifying the esters. The mixture consisted of 75% (R)-( − ) and 25% (S)
Quiroz,, Niemeyer
openaire   +2 more sources

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

European 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, Hermann M. NIEMEYER   +1 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]

PLoS 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, Kang Wang, Sha Su, Ruizheng Tian, Yuting Li, Maohua Chen   +5 more
doaj   +1 more source

Triticum monococcum lines with distinct metabolic phenotypes and phloem-based partial resistance to the bird cherry-oat aphid Rhopalosiphum padi [PDF]

, 2016
Crop protection is an integral part of establishing food security, by protecting the yield potential of crops. Cereal aphids cause yield losses by direct damage and transmission of viruses.
Martin, J. L., Greenslade, A. F. C., Smart, L. E., Corol, D. I., Clark, S. J., Aradottir, G. I., Ward, J. L.   +6 more
core   +1 more source

Effect of temperature on some biological aspects and the thermal requirements of Diaeretiella rapae (M'Intosh) (Hymenoptera:Braconidae) reared on Rhopalosiphum padi L. (Homoptera: Aphididae) [PDF]

Assiut University Bulletin for Environmental Researches, 2021
Developmental periods, adult longevity and thermal requirements of Diaeretiella rapae (M'Intosh) were investigated at 18, 20, 22 and 24°C constant temperature. The development durations decreased as the temperature increased. At 24°C and 18°C the periods
حمدى مجمود
doaj   +1 more source

DIMBOA levels in hexaploid Brazilian wheat are not associated with antibiosis against the cereal aphids Rhopalosiphum padi and Sitobion avenae [PDF]

, 2017
The objective of this study was to evaluate the natural levels of the plant defence compound DIMBOA in young leaves of eight hexaploid Brazilian wheat genotypes and the impact of the genotypes upon development of cereal aphids, Rhopalosiphum padi and ...
Caulfield, J. C., Janet Martin, Birkett, Michael A., MARTIN, J., Periera J. F., Smart, L. E., PEREIRA, P. R. V. da S., Stephen J. Powers, Aradottir, G. I., Martin, J. L., Birkett, M. A., Pereira, P. V. R .S, Paulo R. V. S. Pereira, Sarria, André L. F., Powers, Stephen J., Gudbjorg I. Aradottir, Pereira, Paulo R. V. S., John A. Pickett, Michael A. Birkett, Pickett, J. A., Aradottir, Gudbjorg I., André L. F. Sarria, PEREIRA, J. F., Sarria, A. L. F., Pickett, John, Lesley E. Smart, Martin, Janet, Jorge F. Pereira, Powers, S. J., Pereira, Jorge F., Caulfield, John C., John C. Caulfield, Smart, Lesley E.   +32 more
core   +1 more source

Sequence Requirements for Translation Initiation of Rhopalosiphum padi Virus ORF2

Virology, 2000
Rhopalosiphum padi virus (RhPV) is an aphid-infecting virus with a 10-kb ssRNA genome that contains two large open reading frames (ORFs). ORF1 and ORF2 encode the nonstructural and structural polyproteins, respectively. Both ORFs are preceded by noncoding regions of 500 nt that could function as internal ribosome entry segments (IRESes).
Domier, Leslie L., McCoppin, Nancy K., D'Arcy, Cleora J.   +2 more
openaire   +2 more sources

Effect of climate on the proportion of males in the autumn flight of the aphid Rhopalosiphum padi L. (Hom., Aphididae) [PDF]

, 1998
The composition of autumn flights of a cereal pest aphid, Rhopalosiphum padi, was studied in relation to climate. At 10 sites in France and at Rothamsted and Starcross (UK), evidence was sought for a relationship between winter temperature and the ...
C. Rispe, Rispe, Claude, Harrington, R., Gauthier, J.-P., Gauthier, J-P., Rispe, C., J.‐S. Pierre, R. Harrington, J.‐P. Gauthier, Pierre, J-S., Pierre, J.-S., Hulle, M., M. Hullé   +12 more
core   +1 more source

The lethal and sublethal concentrations of imidacloprid for Schizaphis graminum and Rhopalosiphum padi. [PDF]

, 2023
The lethal and sublethal concentrations of imidacloprid for Schizaphis graminum and Rhopalosiphum padi.
Bai-Zhong Zhang (17457935), Yu-Tai Jiang (17457923), Fan-Bin Kong (17457932), Xin-an Li (17457929), Xiang Ji (324865), Tian-Xin Guo (17457926), Pei Zhang (232846)   +6 more
core   +1 more source