The functional and numerical response of Typhlodromips swirskii (Acari: Phytoseiidae) to the factitious prey Suidasia medanensis (Acari: Suidasidae) in the context of a breeding sachet

Midthassel, A., Leather, S.R., Wright, D.J. and Baxter, I.H. (2014) The functional and numerical response of Typhlodromips swirskii (Acari: Phytoseiidae) to the factitious prey Suidasia medanensis (Acari: Suidasidae) in the context of a breeding sachet. Biocontrol Science and Technology, 24 (3). pp. 361-374.

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Abstract

The whitefly and thrips predator Typhlodromips swirskii (Athias-Henriot) (Acari: Phytoseiidae) can be reared on the factitious astigmatid mite Suidasia medanensis (Oudemans) (Acari: Suidasiidae). The predator–prey relationship allows the system to be incorporated into a breeding sachet which releases predators into a crop over several weeks ensuring predator presence on arrival of the target pests and increased predator numerical response on the crop through immigration from the breeding sachet. This study investigated whether the prey preference and functional and numerical response of T. swirskii to different development stages of S. medanensis can provide understanding of the predator–prey interactions sustaining such a breeding sachet. T. swirskii elicited a strong preference to egg stages of S. medanensis, exhibited a Type II functional response and increased oviposition rate with increasing prey density. The relevance of these attributes to a balanced breeding sachet is discussed.

Item Type:	Article
Divisions:	Crop and Environment Sciences (to 31.07.20)
Depositing User:	Mr Darren Roberts
Date Deposited:	23 Nov 2018 10:29
Last Modified:	29 Nov 2018 11:27
URI:	https://hau.repository.guildhe.ac.uk/id/eprint/17151

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