Results 81 to 90 of about 32,431 (313)

Effect of female size on host selection by a koinobiont insect parasitoid (Hymenoptera: Braconidae: Aphidiinae)

European Journal of Entomology, 2009
Body size is a main fitness component of insect parasitoids. We assessed the potential influence of maternal size of the parasitoid wasp Aphidius colemani Viereck (Hymenoptera: Braconidae: Aphidiinae) on its ability to parasitize the different instars of
Dionyssios LYKOURESSIS, Nikolaos GARANTONAKIS, Dionyssios PERDIKIS, Argyro FANTINOU, Andronikos MAUROMOUSTAKOS   +4 more
doaj   +1 more source

A preventive strategy for the control of aphids in sweet pepper using lacewings and micrococcinelid beetles

Insect Science, EarlyView.
Aphids pose a serious risk to horticultural crops. Current biocontrol strategies often fail due to the poor establishment of natural enemies when aphids are scarce. We evaluated the potential of two aphidophagous predators, Micromus variegatus and Scymnus interruptus, to be used as preventive biocontrol agents, released before aphid infestation.
Jesica Pérez‐Rodríguez, Reinier T. Valstar, Ada Leman, Gerben J. Messelink   +3 more
wiley   +1 more source

Offspring performance does not explain oviposition preference in the leafminer Stigmella sorbi (Lepidoptera: Nepticulidae): a tri‐trophic perspective

Insect Science, EarlyView.
We studied oviposition site selection in a leaf‐mining moth (Stigmella sorbi) on rowan trees (Sorbus aucuparia) in northwestern Russia, assessing larval performance across different shoot types, leaf positions, and leaflets. Larval survival was highest on long vegetative shoots, yet females showed no preference for these optimal sites.
Mikhail V. Kozlov, Vitali Zverev
wiley   +1 more source

Iflaviruses in arthropods: when small is mighty

Insect Science, EarlyView.
Many arthropod species harbor iflaviruses, which often cause covert (asymptomatic) infections, but may still affect host fitness. We review the impact of iflaviruses on arthropod fitness, immunity, behaviour as well as the iflavirus’ host range, transmission, tissue tropism and the interactions with other microorganisms within arthropods.
Annamaria Mattia, Hannah‐Isadora Huditz, Monique M. van Oers, Vera I.D. Ros   +3 more
wiley   +1 more source

Parasitoid species diversity has no effect on protective symbiont diversity in experimental host‐parasitoid populations

Ecology and Evolution
How does diversity in nature come about? One factor contributing to this diversity are species interactions; diversity on one trophic level can shape diversity on lower or higher trophic levels.
Nina Hafer‐Hahmann, Christoph Vorburger   +1 more
doaj   +1 more source

Parasitoid speciation and diversification

Current Opinion in Insect Science
Parasitoid wasps may well be the most species-rich animal group on Earth, and host-parasitoid interactions may thereby be one of the most common types of species interactions. Understanding the major mechanisms underlying diversification in parasitoids should be a high priority, not the least in order to predict consequences from high extinction rates ...
Peter Arvid, Hambäck, Niklas, Janz, Mariana Pires, Braga   +2 more
openaire   +2 more sources

Semi‐tilling maintains the arthropod food web structure but decreases biological pest control in olive groves

Annals of Applied Biology, EarlyView.
Semi‐tillage, a widely used agricultural method to improve water availability and minimise soil erosion in crops, may compromise pest control in olive groves. Stable isotopes (N15 and C13) analysis showed an effect of semi‐tillage in the composition of the basal resources of potential natural enemies in the three olive grove strata: These changes may ...
M. Morente, F. Ruano
wiley   +1 more source

The association of Mediterranean plant species with herbivorous arthropods and its effect on pest abundance in organic vineyards

Annals of Applied Biology, EarlyView.
We determined the associations of native Mediterranean plant species located around organic vineyards with species of Auchenorrhyncha and phytophagous tetranychid and tenuipalpid mites, including important vineyard pests: Jacobiasca lybica and Tetranychus urticae.
Renata Santos, Pedro Naves, Rita Morais, Leonor R. Rodrigues, Sílvia Pina, Márcia Santos, Maria Teresa Rebelo, Patrícia Garcia Pereira, Sara Magalhães, Elisabete Figueiredo   +9 more
wiley   +1 more source

Local species‐specific effect of trees and shrubs on the incidence of the millet head miner, Heliocheilus albipunctella (Lepidoptera, Noctuidae)

Agricultural and Forest Entomology, EarlyView.
Abstract Understanding the interactions between crop pests, natural enemies and semi‐natural habitats in agricultural landscapes is crucial for developing ecology‐based pest management in agroecosystems. In the present study, we investigated the local‐scale species‐specific effect of tree and shrub cover and diversity on the incidence and natural pest ...
Ahmadou Sow, Julien Winkelmann, Alexandre Aebi, Thierry Brévault   +3 more
wiley   +1 more source

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

Scientific 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, Ines M. G. Vollhardt, Susanne Girtler, Corinna Wallinger, Zeljko Tomanovic, Michael Traugott   +5 more
doaj   +1 more source