BioControl (2003) 48, 529-541
W.T.S.D. Premachandra, C. Borgemeister, O. Berndt, R.-U. Ehlers and H.-M. Poehling (2003)
Combined releases of entomopathogenic nematodes and the predatory mite Hypoaspis aculeifer to control soil-dwelling stages of western flower thrips Frankliniella occidentalis
BioControl 48 (5), 529-541
Abstract: The effect of the predatory mite Hypoaspis aculeifer Canestrini (Acarina: Laelapidae) on soil-dwelling stages of the western flower thrips (WFT) Frankliniella occidentalis Pergande (Thysanoptera: Thripidae) and the influence of combined releases of H. aculeifer and two entomopathogenic nematodes (EPNs) Heterorhabditis bacteriophora Poinar (Rhabditida: Heterorhabditidae) (strain HK3, HK3) and Steinernema feltiae Filipjev (Rhabditida: Steinernematidae) (Nemaplus®, SFN) were investigated in pot trials using seedlings of green beans (Phaseolus vulgaris L.). Ten H. aculeifer adults per pot and 400 infective juveniles (IJs) cm-2 soil, of the two EPN strains were used. In comparison with untreated control, H. aculeifer reduced the proportion of adult F. occidentalis emergence by 46%, while SFN and HK3 led to a reduction in adult thrips emergence by 46% and 61%, respectively. Significant differences in adult WFT emergence were found between combined treatments of EPNs and H. aculeifer, and individual applications of EPNs and/or H. aculeifer, with significantly lower adult thrips emergence in the combined treatments. These findings highlight the potential for a combined use of EPNs with H. aculeifer for the control of soil-dwelling stages of thrips.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Christian Borgemeister, Hans-Michael Poehling, Dammini Premachandra, Ralf-Udo Ehlers
Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
application technology
