Results 21 to 30 of about 1,349 (195)

Chromosomes of Aphidius ervi Haliday, 1834 (Hymenoptera: Braconidae).

open access: yesBeiträge zur Entomologie = Contributions to Entomology, 2003
Die Chromosomenanalyse einiger Laborlinien von Aphidius ervi Haliday, 1834 aus Deutschland ergab n=5 und 2n=10. Allerdings wurden bei einigen weiblichen Tieren einer Population Chromosomensätze mit 2n=12 gefunden. Diese Tiere repräsentieren wahrscheinlich eine thelythoke Linie, die aus einer ursprünglich arrhenotoken Population hervorging. Der Karyotyp
Gokhman, Vladimir E.   +1 more
openaire   +3 more sources

Aphidius ervi Haliday 1834

open access: yes, 2012
Aphidius ervi Haliday, 1834 (Figs. 32, 93) Material examined. Acyrthosiphon kondoi Shinji, 1938 on Medicago sativa, HA – Hamadan (34°48′05″N 48°28′48″E, 1832 m), 15.ix.2004, 7 JJ 3 ♀♀; Acyrthosiphon pisum on Medicago sativa, HA – Hamadan (34°48′05″N 48°28′48″E, 1832 m), 14.ix.2004, 26 JJ 38 ♀♀; KD – Marivan (35°31′47″N 46°13′31″E, 1335 m), 11.ix ...
Nazari, Yaser   +7 more
core   +4 more sources

Effect of innate preferences, conditioning and adult experience on the attraction of Aphidius ervi (Hymenoptera: Braconidae) toward plant volatiles

open access: yesEuropean Journal of Entomology, 2002
The aphid parasitoid Aphidius ervi was collected and subsequently reared on Sitobion avenae on wheat or Acyrthosiphon pisum on alfalfa. Parasitoids from both origins were exposed in an olfactometer to alfalfa or wheat volatiles after plant experience ...
Eduardo Fuentes-Contreras   +1 more
exaly   +3 more sources

Small volatile lipophilic molecules induced belowground by aphid attack elicit a defensive response in neighbouring un-infested plants [PDF]

open access: yesFrontiers in Plant Science, 2023
In pioneering studies on plant-aphid interactions, we have observed that Vicia faba plants infested by aphids can transmit signals via the rhizosphere that induce aboveground defence in intact, neighbouring plants.
Pasquale Cascone   +6 more
doaj   +2 more sources

Morphological variation of Aphidius ervi Haliday (Hymenoptera: Braconidae) associated with different aphid hosts [PDF]

open access: yesPeerJ, 2017
Background Parasitoids are frequently used in biological control due to the fact that they are considered host specific and highly efficient at attacking their hosts. As they spend a significant part of their life cycle within their hosts, feeding habits
Cinthya M. Villegas   +5 more
doaj   +3 more sources

Placenta-like structure of the aphid endoparasitic wasp Aphidius ervi: a strategy of optimal resources acquisition. [PDF]

open access: yesPLoS ONE, 2011
Aphidius ervi (Hymenoptera: Braconidae) is an entomophagous parasitoid known to be an effective parasitoid of several aphid species of economic importance. A reduction of its production cost during mass rearing for inundative release is needed to improve
Ahmed Sabri   +7 more
doaj   +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   +5 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 Ramirez   +2 more
exaly   +3 more sources

Acceptance and suitability of Acyrthosiphon pisum and Sitobion avenae as hosts of the aphid parasitoid Aphidius ervi (Hymenoptera: Braconidae)

open access: yesEuropean Journal of Entomology, 2003
Aphidius ervi Haliday is a parasitoid of natural populations of both Acyrthosiphon pisum (Harris) on alfalfa and Sitobion avenae (Fabricius) on wheat in Chile.
Eduardo Fuentes-Contreras   +1 more
exaly   +3 more sources

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   +3 more sources

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