Results 31 to 40 of about 19,873 (228)
European Journal of Entomology, 2005 Knowledge of semiochemically-mediated behavioural mechanisms of the seven-spot ladybird, Coccinella septempunctata L., is limited but sufficient to encourage further studies in the behavioural ecology of this well known insect.
Jan PETTERSSON +4 more
doaj +1 more source
European Journal of Entomology, 2005 The research on pre-diapause feeding of C. septempunctata L. adults was carried out from 1998 to 2002 in the Tiber Valley, in the Botanical Garden of Perugia University, and in the Sibillini Mountains National Park (Central Italy). The species reproduces
Carlo RICCI, Luigi PONTI, Alvaro PIRES
doaj +1 more source
European Journal of Entomology, 2003 In searching both for food to produce eggs and for suitable oviposition sites, females of aphidophagous ladybirds must be adapted to exploit prey that vary greatly in their occurrence and abundance over both space and time.
Edward W. EVANS
doaj +1 more source
Harmonia axyridis: an environmental risk assessment for Northwest Europe [PDF]
, 2008 In this paper, we summarize the international situation with respect to environmental risk assessment for biological control agents. Next, we apply a recently designed, comprehensive risk evaluation method consisting of a stepwise procedure to evaluate ...
Babendreier, D. +3 more
core +2 more sources
Aggregation characteristics of three species of Coccinellidae (Coleoptera) at hibernation sites
European Journal of Entomology, 2007 Adults of some coccinellid species overwinter in aggregations consisting of many individuals. They may clump because adults are attracted to particular environmental stimuli and/or of an innate tendency to join conspecific individuals.
Alois HONĚK +2 more
doaj +1 more source
A new prey record and range extension for Hyperaspis paludicola Schwarz and a new prey record for Microweisea misella (LeConte) (Coleoptera: Coccinellidae) [PDF]
, 2009 The miscanthus mealybug, Miscanthicoccus miscanthi (Takahashi) (Hemiptera: Pseudococcidae), is newly reported as prey for the lady beetle Hyperaspis paludicola Schwarz (Coleoptera: Coccinellidae) at the Regan National Airport, Washington, DC (northern ...
Davidson, John, Gordon, Robert
core
Pest Management Science, EarlyView.Starvation stress significantly affected the growth and development of Hippodamia variegata. Combined transcriptome and metabolome analysis and RNA interference verification revealed that HvarAKR1B1 may be involved in the response of Hippodamia variegata to starvation stress.
Bing‐mei Song +5 more
wiley +1 more source
European Journal of Entomology, 2007 Insects have provided much of the best evidence to date concerning possible costs and benefits of multiple mating, and here we investigate the benefits of polyandry in the two-spot ladybird, Adalia bipunctata, by attempting to replicate the highly ...
Penelope R. HADDRILL +3 more
doaj +1 more source
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 +3 more
wiley +1 more source
European Journal of Entomology, 2008 A laboratory experiment was conducted to determine whether the predation strategy of larvae of the aphidophagous silver fly Leucopis annulipes Zetterstedt (Diptera: Chamaemyiidae) is furtive, as are larvae of the aphidophagous midge Aphidoletes ...
Bruno FRÉCHETTE +2 more
doaj +1 more source