Abstract
The aim of this work was to explore the species composition and abundance of mites and insects in grain residues in an empty grain store. Sampling was done the first and the fifth week after unloading of the wheat grain from the store.
In the study, altogether 26 species of arthropods (Acarina, Psocoptera, Hymenoptera, Coleoptera) were found in the grain residues. Primary and secondary pests created 84 % and predators and parasitoids represented altogether 16 % of the whole arthropod’s community. Primary pests Acarus siro and Sitophilus granarius were dominant. This study documented the accumulation and increase of pests in residues of old grain after unloading the grain-store. The number of individuals increased 3–450 times within 1 month depending on the species. The practical importance of the ”empty-store-management“, which usually escapes the attention of farmers is highlighted.
Zusammenfassung
In der vorliegenden Arbeit wurden Artenzusammensetzung und Abundanz von Milben und Insekten in Getreideresten in einem entleerten Speicher untersucht. Die Probenahmen erfolgten in der ersten und fünften Woche nach der Entleerung des Weizenlagers. Es wurden insgesamt 26 Arten Arthropoden (Acarina, Psocoptera, Hymenoptera, Coleoptera) in den Getreideresten gefunden. Primäre und sekundäre Schädlinge hatten einen Anteil von 84 % und Prädatoren und Parasitoide von 16 % am Gesamtvorkommen der Arthropoden. Die primären Schädlinge Acarus siro und Sitophilus granarius überwogen. Die Ergebnisse dieser Untersuchung dokumentieren die Anhäufung und Zunahme der Schädlinge in alten Getreidekörnern nach Entleerung des Speichers. Die Zahl der Individuen erhöhte sich 3- bis 450-fach innerhalb eines Monats je nach Art. Die Bedeutung für die Praxis des Manage-ments von leeren Getreidespeichern, der die Farmer normalerweise keine Beachtung schenken, wird hervorgehoben.
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Kučerová, Z., Aulický, R. & Stejskal, V. Accumulation of pest-arthropods in grain residues found in an empty store. J Plant Dis Prot 110, 499–504 (2003). https://doi.org/10.1007/BF03356127
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DOI: https://doi.org/10.1007/BF03356127