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Monitoring of aphid flight activities in seed potato crops in Serbia

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2013
3328.pdf (1.184Mb)
Authors
Vucetić, Andja
Vukov, Tanja
Jovicić, Ivana
Petrović-Obradović, Olivera
Article (Published version)
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Abstract
Aphid flight activities in seed potato fields have been studied by the yellow water traps. It is a good method for monitoring aphids as vectors of viruses, but this study also showed it is a suitable method for insect-diversity research. During the four-year studies, over 11.500 specimens were collected and a total of 107 different taxa of aphids were identified. The most abundant species were polyphagous species, such as: Acyrthosiphon pisum (Haris), Aphis fabae Scopoli, Aphis gossypii Glover and Brachycaudus helichrysi (Kaltenbach). The results of the studies show that diversity of aphids in different regions of Serbia is similar regardless of the altitude and the diversity of terrain. At most sites it ranged from 2 to 3. The highest value was recorded in Begec, locality in northern part of Serbia, in year 2008, and it was 2.92. The maximum values of the Shannon-Weaver diversity index at all sites were recorded in the first weeks of the monitoring of aphid flight activities. Morisita...-Horn similarity index shows no significant differences between sites regardless of altitudes. The sites are grouped by year, not by similarity of relief. In spite of these results, the Chi-square analysis showed highly significant difference in vector frequencies among seasons and sites with more pronounced differences for PVY. As a consequence of differences in vector frequencies, the vector pressure index in some regions was different also. The number of vectors and vector pressure index vary depending on the altitude of localities. At localities at altitudes under 1000 m, they were high. The highest index was at Kotraza, locality in central part of Serbia, in 2007, when PVY index exceeded the value of 180, while for PLRV it was 60. At high altitudes on mountain Golija, above 1100 m, the number of aphids was low, as well as the vector pressure index which indicates that these regions are suitable for producing virus-free seed potato.

Keywords:
Aphids / potato / Shannon-Weaver index diversity / Morisita-Horn similarity index / vectors of viruses
Source:
Zookeys, 2013, 319, 333-346
Publisher:
  • Pensoft Publishers, Sofia
Funding / projects:
  • Development of integrated management of harmful organisms in plant production in order to overcome resistance and to improve food quality and safety (RS-46008)

DOI: 10.3897/zookeys.319.4315

ISSN: 1313-2989

PubMed: 24039529

WoS: 000322437500025

Scopus: 2-s2.0-84881078055
[ Google Scholar ]
URI
http://aspace.agrif.bg.ac.rs/handle/123456789/3331
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  • Radovi istraživača / Researchers’ publications
Institution/Community
Poljoprivredni fakultet

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