Abstract
Pot experiments were carried out to explore the role of macrochilid mites,Macrocheles muscaedomesticae (Scop.), and staphylinid beetles,Philonthus longicornis Steph. and collembola,Onychiurus sp. singly and in combination onTylenchulus semipenetrans (Cobb) on sour orange at 29±5°C 74±5% R. H. in green house. All tested soil mesofauna significantly reduced the population of the nematode. The highest predation rate was achieved by the predator mite,M. muscaedomesticae (Scop.) singly, followed by the combination of soil mite plus collembola. The numbers of soil mesofauna recovered from soil at the end of the experiment were significantly higher in treatments of nematode plus one of each of soil mesofauna than monoinoculation of each.
Zusammenfassung
Es wurden Topf-Experimente durchgeführt, um die Rolle einiger Mesofauna-Glieder, nämlichMacrocheles muscaedomesticae (Scop.) (Macrochilidae, Acarina),Philonthus longicornis Steph. (Staphylinidae, Coleopt.) undOnychiurus sp. (Collembola) als Regulatoren des schädlichen NematodenTylenchulus semipenetrans (Cobb) an den Wurzeln von Sauerorangen-Bäumen bei 29±5°C und 74±5% Luftfeuchte im Gewächshaus zu untersuchen. Alle drei Mesofauna-Glieder reduzierten die Population des Nematoden. Der höchste Vernichtungsgrad ergab sich bei Anwesenheit der räuberischen MilbeM. muscaedomesticae allein, gefolgt von der KombinationM. muscaedomesticae + Onychiurus. Die Zahl der am Ende des Experiments dem Boden entnommenen Tiere der Bodenfauna war signifikant größer in Töpfen mit dem Wurzelnematoden als in solchen ohne diesen.
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Osman, G.Y., Zaki, A.M., Salem, F.M. et al. Biological control study onTylenchulus semipenetrans (Cobb) (Nematodes) by certain soil mesofauna. Anz. Schadlingskde., Pflanzenschutz, Umweltschutz 61, 116–118 (1988). https://doi.org/10.1007/BF01906767
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DOI: https://doi.org/10.1007/BF01906767