Results 91 to 100 of about 1,349 (195)
Fine structure of the external sheaths of the ovipositor of Aphidius ervi (Hymenoptera: Braconidae)
The function and structure of the ovipositor in Hymenoptera have been studied intensively, although there is a lack of information on the external sheaths.
Sara RUSCHIONI +4 more
doaj +1 more source
The influence of genetic variation on pre‐oviposition processes for host‐parasitoid co‐evolution
Co‐evolution between aphid hosts and their parasitoids has been associated with adaptative pressures linked with aphid physiological resistance (related to aphid and their endosymbionts' genetic variation) and parasitoid virulence. The aphid‐parasitoid interaction is composed of multiple previous stages before parasitoid oviposition that has been ...
Laura Marcela Martinez‐Chavez +4 more
wiley +1 more source
Searching efficiency and multiparasitism in Aphidius smithi and A. ervi (Hym., Aphidiidae), parasites of pea aphid, Acyrthosiphon pisum (Hom., Aphididae) [PDF]
Aphidius smithi and A. ervi were introduced into the United States to control aphid pests of alfalfa. Laboratory experiments showed that A. smithi was more efficient in searching for hosts (i.e., more hosts parasitized) than A.
Tock, Hing Chua, D Gonzalez, T Bellows
core +1 more source
Facultative endosymbionts of aphids on strawberry crops affect aphid-parasitoid interactions
Aphids are major agricultural pests and laboratory studies have shown that heritable bacterial endosymbionts can protect aphids against biocontrol parasitoids, but results from agricultural crop systems are lacking. Here we assess (1) which aphid species
S. Helena Donner +6 more
doaj +1 more source
Associative odour learning affects mating behaviour in Aphidius ervi males (Hymenoptera: Braconidae)
We used the aphid parasitoid Aphidius ervi reared in its host Acyrthosiphon pisum to examine if male sexual attractive responses can be conditioned to an odour (vanilla) that is not present in the natural environment.
Cristian A. VILLAGRA +2 more
doaj +1 more source
Endophytic entomopathogenic fungi as biological control agents of insect pests
Interaction between plants and endophytic entomopathogenic fungi. Fungal metabolites and induced systemic resistance enhance the plant's defense mechanisms against pests and pathogens. In addition, volatile compounds emitted by the plants colonized by endophytic entomopathogenic fungi play an important role in recruiting natural enemies of insect pests,
Neha Panwar, Adrianna Szczepaniec
wiley +1 more source
Aphids remain an enormous threat to the sustainability of crops in glasshouse and field environments around the world. It is known that the aphid sex pheromone is used as a kairomone by its natural enemies, such as parasitoids. The focus of this research
Fernandez-Grandon, Gabriel Mandela
core
Parasitic wasp responses to symbiont-based defense in aphids
Background Recent findings indicate that several insect lineages receive protection against particular natural enemies through infection with heritable symbionts, but little is yet known about whether enemies are able to discriminate and respond to ...
Oliver Kerry M +5 more
doaj +1 more source
A survey of aphid natural enemies was carried out on two crops fava bean (Vicia faba) and potato (Solanum tuberosum) in the Iferhounène region (Tizi Ouzou, Algeria) between November 2022 and March 2023.
Nabila Taleb +2 more
doaj +1 more source
Data collected in the laboratory on the effects of symbiont Hamiltonella defensa in pea aphids Acyrthosiphon pisum on outcomes of multiparasitism by two parasitoid species (Aphidius ervi and Aphelinus abdominalis).
Godfray, Charles +3 more
core +1 more source

