BioControl (2020) 65, 593-599

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Robert McGregor, Katelyn Crisp and Camile Castiglia (2020)
Feeding lifestyles of the Phytoseiidae revisited: searching for a factitious rearing host for Neoseiulus fallacis (Acari: Phytoseiidae)
BioControl 65 (5), 593-599
Abstract: Several mite species from the Phytoseiidae (Acari) have been successfully developed as products for augmentative biological control. Rearing of mites using factitious prey in grain-based systems can increase the efficiency of production of phytoseiids. This has been done successfully for several species but usually for Type III (generalist predator) phytoseiids. Neoseiulus fallacis (Garman) (Acari: Phytoseiidae) is a Type II phytoseiid (prefers spider mites) that is currently reared in British Columbia (Canada) on Tetranychus urticae Koch (Acari: Tetranychidae) in a plant-based system. Here, we present feeding behaviour and predation data for N. fallacis on T. urticae and three Astigmatid (Acari) mites: Lepidoglyphus destructor (Schrank) (Acari: Glycyphagidae), Aleuroglyphus ovatus (Tropeau) (Acari: Acaridae) and Thyreophagus entomophagus (Laboulbène) (Acari: Acaridae). Our objective is to identify a candidate factitious host for mass rearing of N. fallacis. Although N. fallacis grabbed prey mites of all four species, successful feeding attempts were more frequent for the native host, T. urticae, than for the three Astigmatid species. N. fallacis rejected A. ovatus and T. entomophagus as hosts more often than T. urticae. In predation trials, N. fallacis fed at the highest rate on T. urticae, at an intermediate rate on L. destructor, and at the lowest rates on A. ovatus and T. entomophagus. For the three mites tested, L. destructor is the most promising species for further development as a factitious host for N. fallacis.
(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): Robert R. McGregor

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
rearing/culturing/mass production

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.

Tetranychus urticae
Aleuroglyphus ovatus
Lepidoglyphus destructor
Thyreophagus entomophagus
Neoseiulus fallacis (predator) Tetranychus urticae Canada (west)
Neoseiulus fallacis (predator) Aleuroglyphus ovatus
Neoseiulus fallacis (predator) Lepidoglyphus destructor
Neoseiulus fallacis (predator) Thyreophagus entomophagus