Results 21 to 30 of about 1,349 (195)
Chromosomes of Aphidius ervi Haliday, 1834 (Hymenoptera: Braconidae).
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
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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
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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]
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]
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
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Placenta-like structure of the aphid endoparasitic wasp Aphidius ervi: a strategy of optimal resources acquisition. [PDF]
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
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
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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
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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
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
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