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Relationships betwe...
Relationships between the Pathogen Erysiphe alphitoides, the Phytophagous Mite Schizotetranychus garmani (Acari: Tetranychidae) and the Predatory Mite Euseius finlandicus (Acari: Phytoseiidae) in Oak
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Milanović, Slobodan (author)
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Mladenović, Katarina (author)
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Stojnić, Bojan (author)
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Solla, Alejandro (author)
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Milenković, Ivan (author)
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Uremović, Vanja (author)
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- Tack, Ayco J. M. (author)
- Stockholms universitet,Institutionen för ekologi, miljö och botanik
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(creator_code:org_t)
- 2021-10-29
- 2021
- English.
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In: Insects. - : MDPI AG. - 2075-4450. ; 12:11
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https://doi.org/10.3...
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https://urn.kb.se/re...
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Abstract
Subject headings
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- Food webs on forest trees include plant pathogens, arthropods, and their natural enemies. To increase the understanding of the impact of a plant pathogen on herbivore-natural enemy interactions, we studied the powdery mildew fungus Erysiphe alphitoides, the phytophagous mite Schizotetranychus garmani, and the predatory and mycophagous mite Euseius finlandicus in pedunculate oak (Quercus robur) leaves. In June, July and August of 2016, we assessed the severity of powdery mildew, mite population density and adult female mite size in 30 trees in three forests near Belgrade, Serbia. In August, the infection severity of E. alphitoides related positively to the population density of S. garmani and negatively to the body size of S. garmani females. Throughout the vegetative season, the infection severity of E. alphitoides related positively to the population density of E. finlandicus but not to its body size. The effect of E. alphitoides on the population density and adult size of S. garmani was not mediated by the population density of E. finlandicus, and vice versa. Interactions were consistent in all forests and varied with the summer month. Our findings indicate that E. alphitoides can influence the average body size and population densities of prey and predatory mites studied, irrespective of predator-prey relationships.
Subject headings
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
Keyword
- Quercus robur forest
- epiphytic fungus
- mites
- multi-trophic interactions
Publication and Content Type
- ref (subject category)
- art (subject category)
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