Mitteilungen der deutschen Gesellschaft für allgemeine und angewandte Entomologie (2001) 13, 179-184

Thorsten Zegula, Peter Blaeser and Cetin Sengonca (2001)
Vergleichende Untersuchungen zur Biologie und Prädationsleistung zweier subtropischer Raubmilben Cheyletus fortis Oudemans und Euseius addoensis (van der Merwe and Ryke) mit der kommerziell erwerbbaren Raubmilbe Amblyseius cucumeris Oudemans
[Comparative studies on the biology and predation of two subtropical predatory mites Cheyletus fortis Oudemans and Euseius addoensis (van der Merwe and Ryke) with the commercially available predatory mite Amblyseius cucumeris Oudemans]
Mitteilungen der deutschen Gesellschaft für allgemeine und angewandte Entomologie 13, 179-184
Abstract: Development, reproduction and predation of three predatory mite species were compared using a special lucite cage with an Impatiens-leave pinched in under controlled laboratory conditions. Cheyletus fortis Oudemans (Acari: Cheiletidae), Euseius addoensis (van der Merwe and Ryke) (Acari: Phytoseiidae) and Amblyseius cucumeris (Oudemans) (Acari: Phytoseiidae) were fed on Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae) and Tetranychus urticae Koch (Acari: Tetranychidae) to examine if they are promising agents for the biological control in greenhouses. Results showed that all three predatory mite species could feed on both prey species but only A. cucumeris was limited able to achieve its full development under this favourable conditions. E. addoensis could only develop when fed on T. urticae but C. fortis was not able to reach the adult stage neither with F. occidentalis nor with T. urticae. The reproduction of all three species was so low that they will not be able neither to establish nor control thrips populations in greenhouses. Furthermore the predation rate was not homogeneous at all.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: German)
Database assignments for author(s): Peter Blaeser, Cetin Sengonca

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
evaluation - screening - selection

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Tetranychus urticae
	Frankliniella occidentalis
Neoseiulus cucumeris (predator)	Tetranychus urticae
Neoseiulus cucumeris (predator)	Frankliniella occidentalis
Cheyletus fortis (predator)
Euseius addoensis (predator)	Tetranychus urticae