• Choose a colour
  • Impact of short-term high temperature on adult survival and fitness of the oriental fruit moth, Grapholita molesta (Lepidoptera: Tortricidae).

    View full text

    Author(s) : Chen HaoFang ChengXu XiangLiWu JunXiang

    Author Affiliation : Key Laboratory of Plant Protection Resources and Pest Management, Ministry of Education, Northwest A&F University, Yangling, Shaanxi 712100, China.

    Author Email : cha.active@gmail.comjunxw@nwsuaf.edu.cn

    Journal article : Acta Entomologica Sinica 2014 Vol.57 No.6 pp.696-702 ref.many

    Abstract : Aim: The oriental fruit moth, Grapholita molestagrapholita molestaSubject Category: Organism Names
    see more details
    (Busck) (LepidopteralepidopteraSubject Category: Organism Names
    see more details
    : TortricidaetortricidaeSubject Category: Organism Names
    see more details
    ), is a worldwide fruit pest, causing serious loss to fruit productivity. Our study aims to explore the thermal tolerance and adaptability of G. molesta adults after exposure to short-term high temperaturetemperatureSubject Category: Properties
    see more details
    . Methods: The survivalsurvivalSubject Category: Miscellaneous
    see more details
    rate of G. molesta adults exposed to various temperatures (36, 38, 40, 42, 44 and 46°C) for different time durations (0.5, 1, 2, 4 and 8 h), and the effects of short-term high temperature exposure (heat hardening at 38 or 40°C for 1 h) on their thermal tolerance, longevitylongevitySubject Category: Properties
    see more details
    , fecundityfecunditySubject Category: Miscellaneous
    see more details
    , and egg hatchabilityegg hatchabilitySubject Category: Properties
    see more details
    were investigated. Results: The results showed that the survival rate of G. molesta adults was reduced with the increase of exposure duration to high temperature. The survival rate of G. molesta adults at 42°C was significantly improved after adults were subjected to heat hardening at 38°C or 42°C, for 1 h (P<0.05). After treatment at 41°C for 1 h, G. molesta adults were heat shocked, with longer life span and less fecundity. The further study confirmed that the male adults were greatly affected by high temperature, resulting in the reduction of eggs laid by female adults paired. Nevertheless, there was no remarkable difference in egg hatchability in different treatments though their parents underwent thermal stress. Conclusion: These results suggest that high temperature exceeding 41°C for 1 h causes negative effects to G. molesta adults, but G. molesta adults have a relatively high thermal tolerance and the potential to adapt to high temperatures.

    ISSN : 0454-6296

    URL : http://www.insect.org.cn/EN/volumn/cu...

    Record Number : 20143317101

    Publisher : Editorial Office of Acta Entomologica Sinica

    Location of publication : Beijing

    Country of publication : China

    Language of text : English

    Language of summary : Chinese

    Indexing terms for this abstract:

    Organism descriptor(s) : arthropodsarthropodsSubject Category: Organism Names
    see more details
    , Grapholita molestagrapholita molestaSubject Category: Organism Names
    see more details
    , insectsinsectsSubject Category: Organism Names
    see more details

    Descriptor(s) : arthropod pestsarthropod pestsSubject Category: Organism Groups
    see more details
    , egg hatchabilityegg hatchabilitySubject Category: Properties
    see more details
    , fecundityfecunditySubject Category: Miscellaneous
    see more details
    , heat shockheat shockSubject Category: Diseases, Disorders, and Symptoms
    see more details
    , heat toleranceheat toleranceSubject Category: Properties
    see more details
    , insect pestsinsect pestsSubject Category: Organism Groups
    see more details
    , longevitylongevitySubject Category: Properties
    see more details
    , pestspestsSubject Category: Organism Groups
    see more details
    , plant pestsplant pestsSubject Category: Organism Groups
    see more details
    , survivalsurvivalSubject Category: Miscellaneous
    see more details
    , temperaturetemperatureSubject Category: Properties
    see more details

    Identifier(s) : hatchability, pest arthropods, pest insects

    Broader term(s) : GrapholitagrapholitaSubject Category: Organism Names
    see more details
    , TortricidaetortricidaeSubject Category: Organism Names
    see more details
    , LepidopteralepidopteraSubject Category: Organism Names
    see more details
    , insectsinsectsSubject Category: Organism Names
    see more details
    , HexapodahexapodaSubject Category: Organism Names
    see more details
    , arthropodsarthropodsSubject Category: Organism Names
    see more details
    , invertebratesinvertebratesSubject Category: Organism Names
    see more details
    , animalsanimalsSubject Category: Organism Names
    see more details
    , eukaryoteseukaryotesSubject Category: Organism Names
    see more details