Spatial variability in the level of infestation of the leaves of horse chestnut by the horse chestnut leaf miner, Cameraria ohridella (Lepidoptera: Gracillariidae) and in the number of adult moths and parasitoids emerging from leaf litter in an urban environment

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12220%2F17%3A43891058" target="_blank" >RIV/60076658:12220/17:43891058 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.14411/eje.2017.007" target="_blank" >http://dx.doi.org/10.14411/eje.2017.007</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.14411/eje.2017.007" target="_blank" >10.14411/eje.2017.007</a>

Result language

angličtina

Original language name

Spatial variability in the level of infestation of the leaves of horse chestnut by the horse chestnut leaf miner, Cameraria ohridella (Lepidoptera: Gracillariidae) and in the number of adult moths and parasitoids emerging from leaf litter in an urban environment

Original language description

The horse chestnut leaf miner Cameraria ohridella Deschka &amp; Dimic (Lepidoptera: Gracillariidae) was first recorded in Europe near lake Ohrid in the former Yugoslav Republic of Macedonia in 1985 since when it has spread throughout the whole of Europe. The reasons for its spread are well documented. The aim of this study was to assess the population density of the first generation of C. ohridella at eight sites in the urban area of České Budějovice, Czech Republic in two consecutive years. The density was estimated visually in terms of the damage done to horse chestnut leaves by C. ohridella larvae at each site during the vegetative season. The results revealed high variability in the mean percentage of the leaf area damaged ranging from 1.43% to 31.00% and from 0.26% to 23.40% in 2012 and 2013, respectively. The effect of site, year and interaction between these two factors were statisticallysignificant. Spatial analysis revealed no autocorrelation in damage among sites indicating that the distribution of C. ohridella is random.. In autumn, samples of leaves were collected and the mortality of diapausing pupae of C. ohridella determined. It ranged from 12.50% to 25.82% and from 10.31% to 22.35% in 2012 and 2013, respectively. There was no significant effect of site and year and their interaction on pupal mortality. The leaf samples were then weighed and put into photo-eclectors, which were placed outdoors. Numbers of adults of C. ohridella and hymenopteran parasitoids that emerged in spring were recorded daily. There were statistically significant associations of the total number of adults that emerged from samples in spring with both site and year as well as their interaction. Similarly, the total number of parasitoids that emerged was correlated with the number of moths that emerged.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10613 - Zoology

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

European Journal of Entomology

ISSN

1802-8829

e-ISSN

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Volume of the periodical

114

Issue of the periodical within the volume

leden

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

11

Pages from-to

42-52

UT code for WoS article

000396466400006

EID of the result in the Scopus database

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