Results 41 to 50 of about 2,850 (199)
European 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
Fitness consequences of low temperature storage of Aphidius ervi [PDF]
BioControl, 2013 In biological control programs, storage at low temperatures is used to produce large number of individuals before inundative releases. However, an exposure to low temperatures may affect the survival of exposed individuals and some life history traits such as the daily fecundity or the longevity of the survivors.
Ismail, Mohannad +5 more
openaire +3 more sources
Two new aphid parasitoids (Hymenoptera, Braconidae, Aphidiinae) from field crops of South America [PDF]
Journal of Hymenoptera ResearchDuring 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
Plant 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
Egyptian Journal of Biological Pest Control, 2020 Three parasitoid species viz. Aphelinus asychis Walker (Hymenoptera: Aphelinidae), Aphidius ervi (Haliday) (Hymenoptera: Braconidae) and Diaeretiella rapae (McIntosh) (Hymenoptera: Braconidae) parasitizing the aphid species Myzus persicae (Sulzer ...
Surjeet Kumar +2 more
doaj +1 more source
Aphid symbionts and endogenous resistance traits mediate competition between rival parasitoids. [PDF]
PLoS 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
Distribution and diversity of wheat aphid parasitoids (Hymenoptera: Braconidae: Aphidiinae) in Iran
European Journal of Entomology, 2008 Eleven species of parasitoids were found to attack 7 species of wheat aphids in Iran. The Simpson's Index of diversity (D) used to compare the aphidiine diversity in various cereal crop systems in geographically different regions of Iran ranged from 0 ...
Ehsan RAKHSHANI +6 more
doaj +1 more source
Specificity of Multi-Modal Aphid Defenses against Two Rival Parasitoids. [PDF]
PLoS ONE, 2016 Insects are often attacked by multiple natural enemies, imposing dynamic selective pressures for the development and maintenance of enemy-specific resistance.
Adam J Martinez +3 more
doaj +1 more source
Spatiotemporal variations in aphid-parasitoid relative abundance patterns and food webs in agricultural ecosystems [PDF]
, 2015 Understanding the stability of communities is fundamental in theoretical and applied ecology. Organisms atop trophic chains are particularly sensitive to disturbance, especially when they are dependent on a specific trophic resource subject to strong ...
Andrade, Thiago Oliveira +6 more
core +4 more sources
The influence of aphid parasitoids on the development of their hosts
, 2009 Changes in wing development and development through the stadia of Aphis fabae are examined after parasitisation by Aphidius colemani along with the underlying mechanisms. Parasitoid oviposition into nymphs of winged gynoparae of A.
Kati, Amalia, Kati, Amalia
core +1 more source