Journal of Economic Entomology (2008) 101, 637-646

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Brian L. Chen and Bradley A. Mullens (2008)
Temperature and humidity effects on off-host survival of the northern fowl mite (Acari: Macronyssidae) and the chicken body louse (Phthiraptera: Menoponidae)
Journal of Economic Entomology 101 (2), 637-646
Abstract: Off-host survival of the northern fowl mite, Ornithonyssus sylviarum (Canestrini and Fanzago) (Acari: Macronyssidae), and the chicken body louse, Menacanthus stramineus (Nitzsch) (Phthiraptera: Menoponidae), was studied at 12 combinations of temperature (15, 21, 27, and 33°C) and humidity (31, 65, and 85% RH). Mite protonymphs and louse third instars survived longer on average than the respective adult stages. Higher temperatures significantly reduced survival of adult and immature stages of both ectoparasites, whereas relative humidity had significant effects on O. sylviarum (especially protonymphs) but not M. stramineus. The LT50 values for adult northern fowl mites ranged from 1.9 (at 33°C, 31%RH) to 8.3 d (at 15°C, 85%RH), LT50 values for mite protonymphs ranged from 2.0 (at 33°C, 31%RH) to 18.1 d (at 15°C, 85%RH), LT50 values for adult lice ranged from 0.5 (at 33°C, 31%RH) to 1.7 d (at 15°C, 65%RH), and LT50 values for nymphal lice ranged from 1.2 (at 33°C, 65%RH) to 3.3 d (at 21°C, 31%RH). Maximum survival of the northern fowl mite was up to 35 d for adults and 29 d for protonymphs. Maximum survival for the chicken body louse was 3.3 d for adults and 5.8 d for nymphs. The data provide minimum guidelines for leaving poultry houses vacant long enough to allow ectoparasites to die before introduction of subsequent new flocks.
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Link to article at publishers website
Database assignments for author(s): Bradley A. Mullens

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution
environment - cropping system/rotation


Pest and/or beneficial records:

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


Ornithonyssus sylviarum
Menacanthus stramineus