Results 61 to 70 of about 2,365 (214)

A defensive symbiont and a plant virus confer direct and discrete phenotypes to a cereal aphid in a context‐dependent manner

Ecological Entomology, EarlyView.
Different BYDV‐PAV isolates exert contrasting effects on aphid fitness, including reproduction and winged production. Different BYDV‐PAV isolates have contrasting effects on aphid dispersal patterns. Aphid feeding behaviour is modulated by the presence of endosymbionts and plant viruses.
Daniel J. Leybourne, Andrea Ceribelli, Sharon E. Zytynska   +2 more
wiley   +1 more source

Estimating Economic Thresholds and Economic Injury Levels for Schizaphis graminum (Rond.) and Sitobion avenae Fab. Infesting Wheat Plants in Najaf Government, Iraq [PDF]

Journal of Plant Protection and Pathology
Wheat (Triticum aestivum L.) is a vital cereal crop in Iraq and worldwide, but its productivity is threatened by cereal aphids, particularly Schizaphis graminum and Sitobion avenae.
M. Ragab, A. Ghanim, A. Rashed, H. Mohamed, A. Al-Tamimy   +4 more
doaj   +1 more source

Relationship between water soluble carbohydrate content, aphid endosymbionts and clonal performance of Sitobion avenae on cocksfoot cultivars. [PDF]

PLoS ONE, 2013
Aphids feed on plant phloem sap, rich in sugars but poor in essential amino acids. However, sugars cause osmotic regulation problems for aphids, which they overcome by hydrolysing the sugars in their gut and polymerising the hydrolysis products into ...
Hussein Alkhedir, Petr Karlovsky, Stefan Vidal   +2 more
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

Methyl Jasmonate Seed Priming Mitigates the Defence‐Growth Trade‐Off and Tailors Plant Response to Specific Pests

Plant, Cell &Environment, EarlyView.
ABSTRACT Seed defence priming is emerging as a novel, cost‐efficient and environmentally safe tool for pest management. It has been proposed as a means to uncouple the defence‐growth trade‐off in plants by enhancing defence responses with minimal fitness costs, but the mechanisms underlying this role remain elusive.
Lucia Talavera‐Mateo, Adrian Sabater‐Gabriel, Alejandro Garcia, Marta Marina Perez‐Alonso, Rayko Halitschke, M. Estrella Santamaria   +5 more
wiley   +1 more source

Sublethal effects of sulfoxaflor on the fitness of two species of wheat aphids, Sitobion avenae (F.) and Rhopalosiphum padi (L.)

Journal of Integrative Agriculture, 2019
Sitobion avenae (F.) and Rhopalosiphum padi (L.) are two important pests of wheat in China. They typically coexist in fields during the late period of wheat growth. Sulfoxaflor is a novel sulfoximine insecticide that demonstrates broad-spectrum efficacy,
Juan-juan XIN, Wen-xin YU, Xiao-qing YI, Jun-ping GAO, Xi-wu GAO, Xiao-peng ZENG   +5 more
doaj   +1 more source

Probing behaviors of Sitobion avenae (Hemiptera: Aphididae) on enhanced UV-B irradiated plants [PDF]

Archives of Biological Sciences, 2013
UV-B induced changes in plants can influence sap-feeding insects through mechanisms that have not been studied. Herein the grain aphid, Sitobion avenae (Fabricius) (Hemiptera: Aphididae), was monitored on barley plants under the treatments of control [
Hu Zu-Qing, Zhao Hui-Yan, Thieme Thomas
doaj   +1 more source

The effect of barley yellow dwarf virus on field populations of the cereal aphids, Sitobion avenae and Metopolophium dirhodum

, 1983
The numbers of cereal aphids, especially Metopolophium dirhodum in 1979, and Sitobion avenae in 1980, were significantly increased on BYDV infected wheat and oats in 1979, and wheat, barley and oats in 1980.
Dewar, A. M., Ajayi, O., BY OLUPOMI AJAYI, A. M. DEWAR   +3 more
core   +1 more source

Dispersion pattern and fixed precision sequential sampling of Sitobion avenae (Fabricus) (Hemiptera: Aphididae) in wheat fields of Badjgah (Fars province) in Iran

Journal of Entomological and Acarological Research, 2013
Understanding the dispersion pattern of a species is an important pre-requisite for developing an effective pest management program. In this study, four hundred wheat plants were surveyed for Sitobion avenae twice a week during 2010 and 2011 growing ...
V. Soltani Ghasemloo, M. Aleosfoor
doaj   +1 more source

Drought Stress Promotes Aphis gossypii Growth but Decreases Host Attractiveness in Melon

Journal of Applied Entomology, Volume 150, Issue 6, Page 770-779, July 2026.
ABSTRACT Drought stress is a significant environmental factor that affects plant physiology and growth, leading to considerable detrimental effects on crop productivity. Cucumis melo, which is widely cultivated for its economic value, is particularly susceptible to water scarcity.
G. Clemente‐Orta, M. Guirao, P. Madolell, A. Moreno, A. Fereres   +4 more
wiley   +1 more source