Results 41 to 50 of about 7,037 (232)

Assessment of Chestnut Gall Toughness: Implications for a Biocontrol Agent

open access: yesInsects, 2022
(1) Torymus sinensis, the biocontrol agent of the Asian chestnut gall wasp Dryocosmus kuriphilus, is univoltine, but in NW Italy a small percentage of individuals exhibits a prolonged diapause, mainly as late instar larva.
Chiara Ferracini   +5 more
doaj   +1 more source

Relationships between locomotor activity, oxidative damage and life span in males and females of the linden bug, Pyrrhocoris apterus (Heteroptera: Pyrrhocoridae)

open access: yesEuropean Journal of Entomology, 2013
In this study we addressed a question of whether experimental manipulations that increase life span also reduce physical activity and molecular oxidative damage.
Marcela BURICOVA, Magdalena HODKOVA
doaj   +1 more source

Spread and establishment of Aedes albopictus in southern Switzerland between 2003 and 2014 : an analysis of oviposition data and weather conditions [PDF]

open access: yes, 2016
The Asian tiger mosquito, Aedes albopictus, is a highly invasive mosquito species of public health importance. In the wake of its arrival in neighbouring Italy the authorities of the canton of Ticino in southern Switzerland initiated a surveillance ...
Engeler, Lukas   +3 more
core   +6 more sources

Mating precedes selective immune priming which is maintained throughout bumblebee queen diapause

open access: yesBMC Genomics, 2019
Background Understanding the mechanisms by which organisms adapt to unfavourable conditions is a fundamental question in ecology and evolutionary biology.
Thomas J. Colgan   +3 more
doaj   +1 more source

The Role of Peptide Hormones in Insect Lipid Metabolism

open access: yesFrontiers in Physiology, 2020
Lipids are the primary storage molecules and an essential source of energy in insects during reproduction, prolonged periods of flight, starvation, and diapause.
Umut Toprak
doaj   +1 more source

Interaction of Introgression From \u3ci\u3ePapilio Glaucus Canadensis\u3c/i\u3e and Diapause in Producing Spring Form Eastern Tiger Swallowtail Butterflies, \u3ci\u3eP. Glaucus\u3c/i\u3e (Lepidoptera: Palilionidae) [PDF]

open access: yes, 2017
The small early spring form of the eastern tiger swallowtail butterfly, Papilio glaucus has been described from Massachusetts and Illinois in the north, southward all the way into North Carolina.
Scriber, J. Mark
core   +2 more sources

Factors terminating ovarian arrest in long-winged females of a flightless bug, Pyrrhocoris apterus (Heteroptera: Pyrrhocoridae)

open access: yesEuropean Journal of Entomology, 2007
The aim of the present study was to determine the factors that are involved in termination of a non-diapause type of ovarian arrest in the adult macropterous females of a flightless bug, Pyrrhocoris apterus (L.), reared under a long-day (18L : 6D ...
Radomír SOCHA
doaj   +1 more source

Response of Saddled Prominent (Lepidoptera: Notodontidae) Pupae to Desiccation, Cold Treatment, and Post-Cold Treatment Incubation Temperature [PDF]

open access: yes, 2017
Saddled prominent, Heterocampa guttivitta, pupae were placed at 1.5oC for 50 to 200 days, then incubated at one of four post-cold temperatures ranging from 10° to 26.7°C. Adults emerged from pupae exposed to all cold treatment periods.
Allen, Douglas C, Martinat, Peter J
core   +2 more sources

Effect of Water on Survival and Development of Diapausing Eggs of Apolygus lucorum (Hemiptera: Miridae).

open access: yesPLoS ONE, 2016
The green mirid bug Apolygus lucorum is a regional pest of multiple crops in northern China, and the survival and development of diapausing eggs during winter plays an important role in the population dynamics of this species.
Yinli Jin   +5 more
doaj   +1 more source

The formation of a hatching line in the serosal cuticle confers multifaceted adaptive functions on the eggshell of a cicada

open access: yesZoological Letters, 2021
Insect eggshells must meet various demands of developing embryos. These demands sometimes conflict with each other; therefore, there are tradeoffs between eggshell properties, such as robustness and permeability.
Minoru Moriyama   +2 more
doaj   +1 more source

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