Show simple item record

dc.contributorSchaub, Birgiten_US
dc.contributorKroschel, Jurgenen_US
dc.creatorSporleder, Marcen_US
dc.identifier.citationMarc Sporleder, Birgit Schaub, Jurgen Kroschel. (25/2/2016). Temperature-dependent phenology and growth potential of the Andean potato tuber moth, Symmetrischema tangolias (Gyen) (Lep. Gelechiidae). Journal of Applied Entomology, 00.en_US
dc.description.abstractThe Andean potato tuber moth, Symmetrischema tangolias (Gyen) [Lepidoptera, Gelechiidae], is an economically important pest of potato (Solanum tuberosum L.) in the mid-elevated Andean region and an invasive pest of partially global importance. Determination of the pest’s population life table parameters is essential for understanding population development and growth under a variety of climates and as part of a pest risk analysis. The development, mortality and reproduction were studied in two pest populations (from Peru and Ecuador) in which cohorts of each life stage were exposed to different constant temperatures ranging from 10°C to 28°C. Using the Insect Life Cycle Modeling software, nonlinear equations were fitted to the data and an overall phenology model established to simulate life table parameters based on temperature. The temperature-dependent development curve was statistically well described for eggs by Ratkowsky’s model and for larvae and pupae by Taylor’s model. Variability in development time among individuals independent of temperature was significantly described by a log-logistic model. Temperature effects on immature mortality were described using different nonlinear models. Optimal temperature for survival was between 14° and 17°C. Temperature effects on adult senescence and oviposition time were described by simple exponential models; within-group variability was described by a Weibull distribution function. Fecundity per female due to temperature followed a nonlinear model indicating maximum reproduction at ~17°C. The established model revealed good convergence with historical life tables established at fluctuating temperatures. The results confirm that S. tangolias is more adapted to cooler temperature than the common potato tuber moth, Phthorimaea operculella (Zeller). S. tangolias develops at temperatures within the range of 8–28.8°C with a maximum finite rate of population increase (=1.053) at 21°C. The established process-based physiological model can be used globally to simulate life table parameters for S. tangolias based on temperature and should prove helpful for evaluating the potential establishment risk and in adjusting pest management programmes.en_US
dc.sourceJournal of Applied Entomology;00,(2016)en_US
dc.subjectdevelopment rate modelsen_US
dc.subjectlife table statisticsen_US
dc.subjectpotato pestsen_US
dc.subjectpotato tuber mothen_US
dc.subjecttemperaturedependent developmenten_US
dc.titleTemperature-dependent phenology and growth potential of the Andean potato tuber moth, Symmetrischema tangolias (Gyen) (Lep., Gelechiidae)en_US
dc.typeJournal Articleen_US
cg.subject.agrovocplant genetic resourcesen_US
cg.subject.agrovocphthorimaea operculellaen_US
cg.contributor.centerInternational Potato Center - CIPen_US
cg.contributor.centerUniversity of Hohenheim - UHOHen_US
cg.contributor.crpCGIAR Research Program on Roots, Tubers and Bananas - RTBen_US
cg.contributor.funderNot Applicableen_US
cg.contributor.project-lead-instituteInternational Potato Center - CIPen_US
cg.coverage.regionSouth Americaen_US
dc.identifier.statusLimited accessen_US
cg.journalJournal of Applied Entomologyen_US

Files in this item


There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record

DSpace software copyright © 2002-2016  DuraSpace
MELSpace content providers and partners accept no liability to any consequence resulting from use of the content or data made available in this repository. Users of this content assume full responsibility for compliance with all relevant national or international regulations and legislation.
Theme by 
Atmire NV