Multicolored Asian Lady Beetles in Agriculture and Urban Environments

Hahn, Jeffrey D.; Kovach, Joseph K.

doi:10.1093/ae/50.3.152

Cited by 3 publications

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“…Kljub temu, da so se v preteklosti vnosi nekaterih tujerodnih vrst polonic (vrsta Rodolia cardinalis za zatiranje pomarančevega kaparja [Icerya purchasi Maskell]) izkazali kot učinkovita alternativna metoda pri zatiranju škodljivih žuželčjih vrst, pa vrsta H. axyridis velja za invazivno vrsto, ki z domorodnimi plenilskimi vrstami tekmuje za hrano (Majerus et al, 2006) in jih tako izpodriva iz domačega okolja (preglednica 1). V nekaterih državah tudi poročajo o škodljivem hranjenju odraslih osebkov pisane polonice z mehkimi plodovi nekaterih sadnih vrst, kot tudi z grozdnimi jagodami (Kovach, 2004). Vrsta H. axyridis je postala nadležna tudi v urbanem prostoru.…”

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Pisana polonica (Harmonia axyridis [Pallas], Coleoptera, Coccinellidae) - invazivna koristna vrsta

LAZNIK,

MILEVOJ,

TRDAN

2012

aas

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V začetku novembra 2011 smo v okolici Ljubljane na zidovih posameznih stanovanjskih hiš opazili množičen pojav polonic. Nekaj primerkov smo izlovili, da bi določili vrsto. Na podlagi stereomikroskopskega pregleda in ob uporabi dostopne literature smo potrdili vrsto Harmonia axyridis (Pallas). Vrsta pri nas še nima slovenskega poimenovanja, zato v tem prispevku predlagamo uporabo imena pisana polonica, ki izhaja iz angleškega poimenovanja Harlequin ladybird. V prispevku je opisana bionomija vrste in njen pomen za Slovenijo. Pisana polonica je bila v Evropo vnesena z namenom uporabe v biotičnem varstvu rastlin. V nekaterih državah poročajo o škodljivem hranjenju odraslih osebkov pisane polonice z mehkimi plodovi nekaterih sadnih vrst, kot tudi grozdnimi jagodami. Vrsta H. axyridis postaja nadležna v urbanem prostoru. Nekateri tuji viri navajajo, da s svojimi izločki onesnažuje zidove in opremo, povzroča lahko tudi alergijske reakcije pri ljudeh.

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Section: Uvodunclassified

“…Po več sto ali celo tisoč se jih prikrade na stavbe, kjer iščejo zimsko zatočišče. Nekateri tuji viri navajajo, da s svojimi izločki onesnažijo zidove in opremo, povzročijo pa tudi alergijske reakcije pri ljudeh (Kovach, 2004).…”

Section: Uvodunclassified

Pisana polonica (Harmonia axyridis [Pallas], Coleoptera, Coccinellidae) - invazivna koristna vrsta

LAZNIK,

MILEVOJ,

TRDAN

2012

aas

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Intraguild interactions and aphid predators: biological efficiency of Harmonia axyridis and Episyrphus balteatus

Alhmedi

Haubruge

Francis

2010

J Applied Entomology

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Introductions of the harlequin ladybird Harmonia axyridis into Belgium for aphid biological control have been followed by declines in native aphid natural enemies. We first examined, in laboratory and field conditions, the impact of larval mobility of either H. axyridis or Episyrphus balteatus, the most abundant native hoverfly in central Europe, on aphid suppression. The hoverfly larvae consumed more aphids (Megoura viciae) in a short term, whereas the ladybird ones were more efficient in a long term. We second investigated the intraguild interactions between H. axyridis and E. balteatus larvae and adults. In larva pairings between the two species in laboratory microcosms containing aphid (M. viciae) infested broad bean (Vicia faba) plants, H. axyridis had an intraguild predation (IGP) advantage over the hoverfly. When conspecific larvae were paired together on aphid‐infested plants, no cannibalism between them was detected. The presence of either H. axyridis or E. balteatus larvae on aphid‐infested plants negatively influenced the ovipositional behaviour of H. axyridis and E. balteatus females; lower numbers of laid eggs were recorded compared to control treatment. Moreover, eggs laid by E. balteatus females were also dropped as victims of predation mainly by H. axyridis larvae. Our results suggest that while the exotic ladybird was more efficient in aphid biological control, larvae and eggs of the native hoverfly species face increased IGP by H. axyridis, which would contribute, as a consequence, to the decline in E. balteatus population following invasion.

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Identification of limonene as a potential kairomone of the harlequin ladybird Harmonia axyridis (Coleoptera: Coccinellidae)

Alhmedi¹,

Haubruge²,

Francis³

2010

Eur. J. Entomol.

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Abstract. Chemical cues involved in both host location and oviposition by Harmonia axyridis Pallas (Coleoptera: Coccinellidae) were investigated in laboratory and field experiments. Among the five volatiles tested in a four-arm olfactometer ((E)--farnesene, -pinene, -caryophyllene, cis-3-hexen-1-ol, and limonene), gravid H. axyridis females were significantly attracted to limonene and -caryophyllene. These two chemicals also increased H. axyridis oviposition on plants. Attraction of H. axyridis towards limonene was further tested under field conditions using controlled-release dispensers. (E)--farnesene, a major aphid alarm pheromone and a potential predator kaironome, was also tested in this study. Field data confirmed those from laboratory studies concerning the attraction of H. axyridis towards limonene and a lack of response to (E)--farnesene. In contrast, the aphid predator Episyrphus balteatus DeGeer (Diptera: Syrphidae) was attracted to (E)--farnesene but not to limonene. These findings indicate that H. axyridis uses chemicals, such as limonene, for prey location and oviposition, and support the potential use of volatiles in the management of H. axyridis.

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Multicolored Asian Lady Beetles in Agriculture and Urban Environments

Cited by 3 publications

References 0 publications

Pisana polonica (Harmonia axyridis [Pallas], Coleoptera, Coccinellidae) - invazivna koristna vrsta

Pisana polonica (Harmonia axyridis [Pallas], Coleoptera, Coccinellidae) - invazivna koristna vrsta

Intraguild interactions and aphid predators: biological efficiency of Harmonia axyridis and Episyrphus balteatus

Identification of limonene as a potential kairomone of the harlequin ladybird Harmonia axyridis (Coleoptera: Coccinellidae)

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