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@article{2333558,
author = {Honěk, Alois and Dixon, Anthony F. G. and Martinková, Zdenka and Pekár, Stanislav and Růžek, Pavel},
article_number = {10},
doi = {http://dx.doi.org/10.1111/eea.13349},
keywords = {Aphididae; cereal aphids; crop density; direct damage; ear; Hemiptera; leaf; Metopolophium dirhodum; Sitobion avenae; spatial distribution; Triticum aestivum; wheat},
language = {eng},
issn = {0013-8703},
journal = {Entomologia Experimentalis et Applicata},
title = {Spatial distribution of cereal aphids determines their abundance and population density in winter wheat stands},
url = {https://doi.org/10.1111/eea.13349},
volume = {171},
year = {2023}
}
TY - JOUR
ID - 2333558
AU - Honěk, Alois - Dixon, Anthony F. G. - Martinková, Zdenka - Pekár, Stanislav - Růžek, Pavel
PY - 2023
TI - Spatial distribution of cereal aphids determines their abundance and population density in winter wheat stands
JF - Entomologia Experimentalis et Applicata
VL - 171
IS - 10
SP - 789-795
EP - 789-795
PB - Wiley
SN - 00138703
KW - Aphididae
KW - cereal aphids
KW - crop density
KW - direct damage
KW - ear
KW - Hemiptera
KW - leaf
KW - Metopolophium dirhodum
KW - Sitobion avenae
KW - spatial distribution
KW - Triticum aestivum
KW - wheat
UR - https://doi.org/10.1111/eea.13349
N2 - The numbers per tiller (abundance) and per unit area of ground (population density) of the dominant cereal aphids in winter wheat crops, Sitobion avenae (Fabricius) and Metopolophium dirhodum (Walker) (Hemiptera: Aphididae) were recorded from 2000-2015. The results were used to test the hypothesis that at the population peak and 4 weeks previously, the population density of aphids in winter wheat crops (Triticum aestivum L., Poaceae) is uniformly distributed with respect to surface area and, as a result, their abundance is high in sparse stands (SPA) where the colonizing aphids are scattered among a small number of tillers (ca. 80 m(-2)), and low in dense stands (DEN) where they are scattered among a larger number of tillers (ca. 440 m(-2)). This prediction was verified for S. avenae, the population density of which did not significantly differ between SPA and DEN stands throughout this period. This species feeds mainly on the ears, whose nutritional quality for aphids varies little with crop density and during the course of ripening. In contrast and contrary to our prediction, the population density of M. dirhodum increased throughout this period more rapidly in SPA than in DEN stands. This species lives on leaves whose quality is better and remain present for longer during the course of ripening of the crop in SPA than DEN stands. The abundance of both species was higher in SPA than in DEN stands. Greater direct damage to cereal crops can be expected when using technologies and cultivars of winter wheat that need to be planted sparsely.
ER -
HONĚK, Alois, Anthony F. G. DIXON, Zdenka MARTINKOVÁ, Stanislav PEKÁR a Pavel RŮŽEK. Spatial distribution of cereal aphids determines their abundance and population density in winter wheat stands. \textit{Entomologia Experimentalis et Applicata}. Wiley, 2023, roč.~171, č.~10, s.~789-795. ISSN~0013-8703. Dostupné z: https://dx.doi.org/10.1111/eea.13349.
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