Effect of Temperature and Intraspecific Allometry on Predation by Two Phenotypes of &lt;I&gt;Harmonia axyridis&lt;/I&gt; Pallas (Coleoptera: Coccinellidae)

Soares, António O.; Coderre, Daniel; Schanderl, Hugo

doi:10.1603/0046-225x-32.5.939

Cited by 63 publications

(47 citation statements)

References 57 publications

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“…Predation efficiency of C. undecimpunctata was evaluated through the determination of the voracity following the model of Soares et al (2003):…”

Section: Exposure Of Coccinellids To Insecticides By Direct Contactmentioning

confidence: 99%

“…In this case, we had to adjust the voracity model by Soares et al (2003) (where only the alive aphids are considered as not consumed), since most of the aphids were already dead due to the insecticide treatments when the predator was added to the prey/plant system. The procedure was repeated at least 10 times per insecticide or control treatments for 4th instar larvae, adult male and female of C. undecimpunctata.…”

Section: Exposure Of Coccinellids To Insecticides By Direct Contactmentioning

confidence: 99%

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Voracity of Coccinella undecimpunctata: effects of insecticides when foraging in a prey/plant system

2011

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Coccinella undecimpunctata L. is a euryphagous predator established in Azores that offers interesting potential as a control agent in the context of integrated pest management (IPM). However, to further develop IPM against aphids, it is important to evaluate the effects that insecticides might have on voracity. Thus, we proposed to evaluate the effects of pirimicarb and pymetrozine on the voracity of 4th instar larvae and adults of C. undecimpunctata, under distinct scenarios of exposure to chemicals within a prey/plant system. Voracity of C. undecimpunctata was not significantly affected by pirimicarb or pymetrozine when treatments were directly sprayed on the predator; however, when insecticides were sprayed on the prey/plant system, the predator's voracity was significantly increased. Results suggest that C. undecimpunctata does not detect the insecticide on the aphids and indicate that the increase in voracity may be due to a decrease in the mobility of insecticide-treated aphids, since their capture should be easier than highly mobile non-treated prey. The consequences of such increase in the voracity for IPM programs are discussed.

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“…Predation efficiency of C. undecimpunctata was evaluated through the determination of the voracity following the model of Soares et al (2003):…”

Section: Exposure Of Coccinellids To Insecticides By Direct Contactmentioning

confidence: 99%

Section: Exposure Of Coccinellids To Insecticides By Direct Contactmentioning

confidence: 99%

Voracity of Coccinella undecimpunctata: effects of insecticides when foraging in a prey/plant system

2011

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“…On all measures, the climates of the two locations seem dissimilar. However, H. axyridis begins to develop between ~8°C (Soares et al 2003) and~11°C (LaMana &. Development is most rapid at ~30°C (Schanderl et al 1985).…”

Section: Establishmentmentioning

confidence: 99%

Invasions by Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae) in the Western Hemisphere: implications for South America

Koch¹,

Venette²,

Hutchison³

2006

Neotrop. Entomol.

142

150

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Invasões de Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae) no Hemisfério Ocidental: Implicacões para a América do Sul RESUMO -A joaninha, Harmonia axyridis (Pallas), nativa da Ásia, foi recentemente detectada na América do Sul depois de ter invadido a América do Norte e Europa. Essa joaninha é um predador voraz, e portanto, popular e eficaz no controle biológico. Infelizmente, H. axyridis também está relacionada a impactos nocivos (ex., como peste residencial e de frutas temperadas e ameaça a organismos não-alvos). Para fazer prever os possíveis impactos de H. axyridis na América do Sul, a história da sua invasão no Hemisfério Ocidental foi revisada e os vários fatores críticos para futuras invasões (isto é, chegada, estabelecimento e disseminação) em novas áreas da América do Sul foram discutidos. A possibilidade de introduções contínuas de H. axyridis na América do Sul parece alta devido a sua popularidade como agente de controle biológico e através de introduções acidentais. Seu estabelecimento também parece possível em extensas regiões da América do Sul. A similaridade climática com a região nativa sugere que o estabelecimento é possível na região sul da América do Sul. Porém, similaridade de hábitat com a região nativa sugere que o estabelecimento seja mais adequado na região norte da América do Sul. Além disso, a disponibilidade da presa não deve ser um fator limitante para o estabelecimento desse predador. Após o estabelecimento, H. axyridis pode se disseminar pelo próprio vôo e por meios associados ao homem. Concluindo, a invasão de H. axyridis em novas áreas do continente sul-americano é provável. (Colunga-Garcia & Gage 1998, Brown & Miller 1998, Michaud 2002b, Alyokhin & Sewell 2004, Saini 2004, which may be partly due to intraguild predation (e.g., Cottrell & Yeargan 1998, Michaud 2002b, Cottrell 2004, Yasuda et al. 2004. In addition, H. axyridis may impact populations of the monarch butterfly, Danaus plexippus (Koch et al. 2004c, in press b). Second, H. axyridis can be a pest of fruit production (Koch et al. 2004a), particularly as a contaminant during wine production (Pickering et al. 2004, Galvan et al. 2006. Third, H. axyridis can be a nuisance to humans. It can become a household pest when it seeks shelter from winter in homes and other structures (Nalepa et al. 2004(Nalepa et al. , 2005. Once on or in a home, massive aggregations of H. axyridis are a nuisance to homeowners (Nalepa et al. 2004, Huelsman & Kovach 2004 and can cause allergic reactions in humans (Ray & Pence 2004). Similarly, H. axyridis can form autumn aggregations in bee hives, where it apparently does not harm the bees, but is a nuisance to the bee keepers (Caron 1996).The geographic range and impacts (both positive and negative) of H. axyridis are expanding rapidly. Currently, this coccinellid is widely established in North America Can we use what we have learned from the invasion of H. axyridis in North America to predict implications for South America? In this paper, we provide a review of the literature on the histor...

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“…In addition, H. axyridis is a highly polymorphic species (Soares et al 2001) and this could also help the species to be an efficient invader. Many modifications, such as elytral patterns, body shape and body size may be adaptive through imparting increased tolerance to adverse conditions (Dobzhansky 1933;Soares et al 2003a). The relative frequency of phenotypes seems to be related to geographical and seasonal factors (Tan 1946(Tan , 1949Komai 1956;Iablokoff-Khnzorian 1982;Osawa and Nishida 1992), suggesting that some phenotypes may be favorably selected in different parts of the ecosystem or at different times.…”

Section: Harmonia Axyridis: a Super Invader?mentioning

confidence: 99%

Harmonia axyridis: What will stop the invader?

Soares

Borges

et al. 2007

BioControl

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In recent years Harmonia axyridis (Pallas, 1773) (Coleoptera: Coccinellidae) has become a very popular insect among biological control practitioners and scientists, not only for its potential to be an efficient biological control agent but also because it is considered invasive. Individuals of this species were deliberately introduced into several countries for biological control of different arthropods pests. However the predator itself became an invasive species, affecting the dynamics and composition of several guilds through direct or indirect interactions with established species, including intraguild predation. In this paper we discuss the reasons why the species has a high invasiveness and what are the limits to invasion by this species. It is not clear if the invasiveness of the beetle is linked to its biological, ecological and behavioural abilities, or to other factors such as invasibility and interactions between the invaders, the noninvaders, and the habitat, which may in part explain the reasons of its success and help us to answer the question ''what will stop the invader?'' We also discuss the reason for the absence of the predator in the Azores islands. Despite the intentional introduction of H. axyridis in the Azores and the high number of individuals released, there are no records of this species in the wild, despite recent extensive sampling effort. In this paper we discuss the reasons for the apparent failure or the delay in establishment of the predator. One factor which may hamper the establishment of H. axyridis in some of the Azores islands is the absence of winter

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Effect of Temperature and Intraspecific Allometry on Predation by Two Phenotypes of <I>Harmonia axyridis</I> Pallas (Coleoptera: Coccinellidae)

Cited by 63 publications

References 57 publications

Voracity of Coccinella undecimpunctata: effects of insecticides when foraging in a prey/plant system

Voracity of Coccinella undecimpunctata: effects of insecticides when foraging in a prey/plant system

Invasions by Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae) in the Western Hemisphere: implications for South America

Harmonia axyridis: What will stop the invader?

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