Results 111 to 120 of about 4,521,295 (246)

Do aphid endosymbiotic bacteria influence parasitoid searching behaviour through changes in aphid honeydew production?

open access: yesEcological Entomology, EarlyView.
Hamiltonella defensa infection increases honeydew production in certain aphid genotypes, potentially modifying aphid feeding behaviour. Parasitoid wasps, Aphidius ervi, are more attracted to honeydew from H. defensa‐infected aphids; though larger honeydew amounts may slightly deter searching.
Desiré Macheda   +5 more
wiley   +1 more source

Baryscapus evonymellae (Bouché, 1834) (Hymenoptera: Eulophidae), a hyperparasitoid of Leucoma wiltshirei Collenette, 1938 (Lepidoptera: Erebidae) in Iran [PDF]

open access: yesJournal of Insect Biodiversity and Systematics
Baryscapus evonymellae (Bouché, 1834) (Hymenoptera, Eulophidae) was rediscovered on Leucoma wiltshirei Collenette, 1938 (Lepidoptera, Erebidae) attacked by different parasitoids.
Fatemeh Ehteshami   +6 more
doaj  

Herbivore, parasitoid and hyperparasitoid insects associated with fruits and seeds of Enterolobium contortisiliquum (Vell.) Morong (Fabaceae)

open access: yesBrazilian Journal of Biology, 2018
This study aimed to inventory the herbivore insects associated with Enterolobium contortisiliquum (Vell.) Morong (Fabaceae) fruits and seeds and their primary and secondary parasitoids.
T. Morales-Silva   +3 more
doaj   +1 more source

A defensive symbiont and a plant virus confer direct and discrete phenotypes to a cereal aphid in a context‐dependent manner

open access: yesEcological Entomology, EarlyView.
Different BYDV‐PAV isolates exert contrasting effects on aphid fitness, including reproduction and winged production. Different BYDV‐PAV isolates have contrasting effects on aphid dispersal patterns. Aphid feeding behaviour is modulated by the presence of endosymbionts and plant viruses.
Daniel J. Leybourne   +2 more
wiley   +1 more source

Parasitic wasp‐associated polydnavirus and venom affect arthropod community assembly on wild cabbage via the caterpillar host

open access: yesEcological Entomology, EarlyView.
Cotesia glomerata polydnavirus and venom, either alone or in combination, affect colonisation by members of the arthropod community in a natural field setting. Plants damaged by P. brassicae injected with both polydnavirus and venom were colonised more often by Mamestra brassicae caterpillars, Myzus persicae aphids and aphid parasitoids compared to ...
Sarah Naomi Kalisvaart   +5 more
wiley   +1 more source

Eupelmus (Eupelmus) urozonus Dalman (Hymenoptera: Eupelmidae) - a new egg parasitoid of Thaumetopoea pityocampa (Denis & Schiffermüller) (Lepidoptera: Notodontidae) in Bulgaria

open access: yesHistoria Naturalis Bulgarica
Based on samples collected in 2017 and 2024, Eupelmus (Eupelmus) urozonus (Hymenoptera: Eupelmidae) is recorded as a new egg parasitoid of Thaumetopoea pityocampa (Lepidoptera: Notodontidae) in Bulgaria. Seven male specimens of E.
Miroslav Antov   +4 more
doaj   +1 more source

Relative abundance of primary parasitoids and hyperparasitoids from primary parasitoid cocoons in the field.

open access: yes, 2013
Primary and hyperparasitoid wasps were reared from cocoons of the gregarious Cotesia glomerata (left) and solitary C. rubecula (right) that had been collected from Brassica oleracea during three field seasons.
Aline E. Boursault (297243)   +9 more
core   +1 more source

Maternal factors from a parasitoid wasp mediate hyperparasitoid attraction to parasitized caterpillars

open access: yesEcological Entomology, EarlyView.
The parasitoid‐associated polydnavirus CgPDV, but not venom alone, significantly increases the attractiveness of Pieris brassicae caterpillars to the hyperparasitoid Baryscapus galactopus at close range. Naturally parasitized caterpillars elicit stronger hyperparasitoid attraction than any injection treatment, indicating that additional factors beyond ...
Yuhan Liu   +5 more
wiley   +1 more source

Regenerative wheat management: The relative effects of farm practices on the biodiversity of invertebrates

open access: yesInsect Conservation and Diversity, EarlyView.
Wheat in North America harbours a diverse insect community (565 morphospecies were identified in this study), and pests represented <7% of specimens collected. Regenerative wheat management promoted insect diversity without increasing pest populations.
Daniel Pecenka   +3 more
wiley   +1 more source

An effective molecular approach for assessing cereal aphid-parasitoid-endosymbiont networks

open access: yesScientific Reports, 2017
Molecular approaches are increasingly being used to analyse host-parasitoid food webs as they overcome several hurdles inherent to conventional approaches.
Zhengpei Ye   +5 more
doaj   +1 more source

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