Results 171 to 180 of about 1,349 (195)

Host regulation effects of ovary fluid and venom of Aphidius ervi (Hymenoptera: Braconidae)

Journal of Insect Physiology, 1998
The host regulation effects of venom and ovary fluid of the endophagous braconid Aphidius ervi Haliday on the pea aphid, Acyrthosiphon pisum (Harris), have been studied. Extracts of ovaries and of venom glands were injected into nonparasitized 4th instar pea aphids, both separately and mixed. Aphids treated with parasitoid material died as 4th instars,
DIGILIO, MARIA CRISTINA, PENNACCHIO, FRANCESCO, E. Tremblay   +2 more
openaire   +3 more sources

Biochemical and metabolic alterations in Acyrthosiphon pisum parasitized by Aphidius ervi

Archives of Insect Biochemistry and Physiology, 1995
AbstractBiochemical and metabolic alterations in Acyrthosiphon pisum (Harris) (Homoptera: Aphididae) parasitized by the endophagous Aphidius ervi Haliday (Hymenoptera: Braconidae) are reported. Total ecdysteroid titer was determined by radioimmunoassay.
PENNACCHIO, FRANCESCO, DIGILIO, MARIA CRISTINA, E. Tremblay   +2 more
openaire   +2 more sources

Bottom-up effect of water stress on the aphid parasitoid Aphidius ervi

Entomologia Generalis, 2018
Parasitoids inhabiting agro-ecosystems may be largely affected by bottom-up forces, notably owing to abiotic stresses, and this may modulate parasitoids preference (host acceptance) and/or their performance (host suitability). The availability of water is a key factor impacting plant quality and in determining changes in plant-insect community ...
Nguyen, Le Thu Ha, Monticelli, Lucie, Desneux, Nicolas, Métay-Merrien, Christiane, Amiens-Desneux, Edwige, Lavoir, Anne Violette   +5 more
openaire   +3 more sources

Functional analysis of a fatty acid binding protein produced by Aphidius ervi teratocytes

Journal of Insect Physiology, 2012
Aphidius ervi (Hymenoptera, Braconidae) is an endophagous parasitoid of various aphid species, including Acyrthosiphon pisum (Homoptera, Aphididae), the model host used in the present study. Parasitized hosts show a marked increase of their nutritional suitability for the developing parasitoid larvae.
Caccia L., Grimaldi A., Casartelli M., Falabella P., de Eguileor M., Pennacchio F., Giordana B.   +6 more
openaire   +4 more sources

Functional bases of host‐acceptance behaviour in the aphid parasitoid Aphidius ervi

Physiological Entomology, 2007
Abstract The host acceptance behaviour in Aphidius ervi is investigated, assessing the role of both external and internal host‐associated cues, offered to the experimental parasitoids with parafilm‐made aphid dummies.
A. Larocca, P. Fanti, V. A. Romano, E. Marsicovetere, N. Isidoro, R. Romani, S. Ruschioni, PENNACCHIO, FRANCESCO, D. Battaglia   +8 more
openaire   +3 more sources

Aphidius ervi

PlantwisePlus Knowledge Bank, 2022
openaire   +1 more source

Heterospecific larval competition and host discrimination in two species of aphid parasitoids: Aphidius ervi and Aphidius smithi

Entomologia Experimentalis Et Applicata, 1990
M Mackauer
exaly  

The temperature-dependent duration of development and parasitism of three cereal aphid parasitoids, Aphidius ervi, A. rhopalosiphi, and Praon volucre

Entomologia Experimentalis Et Applicata, 2000
Lene Sigsgaard
exaly  

A QUANTITATIVE GENETIC ANALYSIS OF THERMAL SENSITIVITY IN THE LOCOMOTOR PERFORMANCE CURVE OF APHIDIUS ERVI

Evolution; International Journal of Organic Evolution, 1996
George W Gilchrist
exaly  

A comparison between two strains from Japan and Europe of Aphidius ervi

Entomologia Experimentalis Et Applicata, 2000
Hajimu Takada
exaly