Entomologia Generalis (2016) 35, 243-252

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Murat Mustu, Fikret Demirci, Merve Köksal, Cem Serbes and Birtan Armagan (2016)
Mortality effects of Isaria farinosa and Purpureocillium lilacinum (Sordariomycetes: Hypocreales) on the two spotted spider mite Tetranychus urticae (Acari: Tetranychidae) and its predator Neoseiulus californicus (Acari: Phytoseiidae) under controlled conditions
Entomologia Generalis 35 (4), 243-252
Abstract: The pathogenic effects of Purpureocillium lilacinum (Thom) (Luangsaard, Houbraken, Hywel-Jones and Samson) and Isaria farinosa (Holmsk.) (Sordariomycetes: Hypocreales) Fries on the two spotted spider mite Tetranychus urticae Koch (Acari: Tetranychidae) were investigated under laboratory conditions. The effects of the fungi on Neoseiulus californicus (McGregor) (Acari: Phytoseiidae), an important predatory mite of T. urticae, were also determined. It was found that the entomopathogenic fungi can cause high mortality rates in both phytophagous and predatory mites. While entomopathogens caused 90% and more mortality in T. urticae under 85% and 95% r.h. the mortality percentages caused by P. lilacinum and I. farinosa decreased to 84.72% and 68.71% respectively. I. farinosa caused 100% mortality in N. californicus on day 4 after inoculation. The mortality rate of the predatory mite inoculated with P. lilacinum could reach 88% on day 4 after inoculation. It was found that I. farinosa showed a higher mortality on the predatory mite than P. lilacinum.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: English)
Database assignments for author(s): Fikret Demirci, Murat Mustu

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution

Pest and/or beneficial records:

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


Tetranychus urticae
Neoseiulus californicus (predator) Tetranychus urticae
Cordyceps farinosa (entomopathogen) Tetranychus urticae
Purpureocillium lilacinum (entomopathogen) Tetranychus urticae
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