Results 31 to 40 of about 647 (164)

Dynamics of Insects and Their Facultative Defensive Endosymbiotic Bacteria: A Simulation Model. [PDF]

open access: yesEcol Evol
Aphids host endosymbionts protect them against attacks from parasitoids, leading to potential reduction in the efficacy of biological control against these crop pests. We developed a Monte Carlo simulation model to examine changes in levels of endosymbiont infection in an insect population in the presence of parasitoids attacking them over several ...
Wajnberg E, Cônsoli FL.
europepmc   +2 more sources

The success of a habitat specialist biological control agent in the face of disturbance

open access: yesEcosphere, 2022
Natural enemies that can use multiple habitats are thought to better withstand disturbances in agricultural systems than natural enemies that are habitat specialists.
Miriam Kishinevsky, Anthony R. Ives
doaj   +1 more source

Aphidius (Aphidius) ervi Haliday

open access: yes, 2016
Published as part of Lopes, Thomas, Libert, Pierre-Nicolas, Starý, Petr, Japoshvili, George, Hatt, Séverin & Francis, Frédéric, 2016, Checklist of Aphidiinae (Hymenoptera: Braconidae) and Aphelinus (Hymenoptera: Aphelinidae) species from Belgium with respectively four and three new records, pp.
Lopes, Thomas   +5 more
openaire   +2 more sources

Aphidius ervi venom regulates Buchnera contribution to host nutritional suitability

open access: yesJournal of Insect Physiology, 2023
The association between the pea aphid, Acyrthosiphon pisum (Harris) (Homoptera: Aphididae), and the endophagous parasitoid wasp Aphidius ervi Haliday (Hymenoptera: Braconidae) offers a unique model system for studying the molecular mechanisms underlying the complex interactions between the parasitoid, its host and the associated primary symbiont. Here,
Russo, Elia   +4 more
openaire   +4 more sources

Increased xylem ingestion and decreased phloem ingestion in the aphid Acyrthosiphon pisum (Hemiptera: Aphididae) parasitised by Aphidius ervi (Hymenoptera: Braconidae)

open access: yesEuropean Journal of Entomology, 2006
The effects of parasitisation by Aphidius ervi on the feeding behaviour of the aphid Acyrthosiphon pisum were studied. There was progressive increase in the time devoted to xylem ingestion (G waveform) and concomitant decrease in time devoted to phloem ...
Claudio C. RAMÍREZ   +2 more
doaj   +1 more source

Aphidius ervi Haliday

open access: yes, 2008
Aphidius ervi Haliday (Figs. 11, 28, 45, 58, 65) Acyrthosiphon kondoi Shinji on Medicago sativa, Tehran, 15 September 2004 (4♀ 6♂); Karaj, 18 September 2004 (3♀ 1♂); ‡Abhar, 10 September 2004 (4♀ 2♂); ‡Hamadan, 15 September 2004 (3♀ 7♂); ‡Rovan, 14 September 2004 (9♀ 12♂); ‡Isfahan-Borkhar, 23 September 2004 (4♀ 7♂); ‡Shahinshahr, 27 August 2004 (3♀ 5♂)
Rakhshani, Ehsan   +5 more
openaire   +2 more sources

Two new aphid parasitoids (Hymenoptera, Braconidae, Aphidiinae) from field crops of South America [PDF]

open access: yesJournal of Hymenoptera Research
During two seasons of field sampling in crop fields in Argentina, a total of 2,276 Aphidiinae specimens were collected using Malaise traps positioned in maize, soybean, and wheat fields.
Željko Tomanović   +9 more
doaj   +3 more sources

Influence of intercropping with spring cereals on the occurrence of pea aphids (Acyrthosiphon pisum Harris, 1776) and their natural enemies in field pea (Pisum sativum L.)

open access: yesPlant Protection Science, 2011
Occurrences of pea aphids and their natural enemies (syrphids, mummies caused by entomopathogenic fungi Beauveria sp. and by the parasitic wasp Aphidius ervi) were compared in monocultures and mixtures of field peas and spring cereals in three seasons ...
Marek SEIDENGLANZ   +3 more
doaj   +1 more source

Aphidius ervi HALIDAY 1834

open access: yes, 2010
Published as part of O. Ç, T, Ž., Beyarslan, A. & S, Black, 2010, New distributional records on the subfamily Aphiidinae (Hymenoptera: Braconidae) in Black Sea Region, Turkey, pp.
O. Ç, T, Ž., Beyarslan, A., S, Black
openaire   +2 more sources

Aphid symbionts and endogenous resistance traits mediate competition between rival parasitoids. [PDF]

open access: yesPLoS ONE, 2017
Insects use endogenous mechanisms and infection with protective symbionts to thwart attacks from natural enemies. Defenses that target specific enemies, however, potentially mediate competition between rivals and thereby impact community composition ...
Laura J Kraft   +3 more
doaj   +1 more source

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