Integrated Pest Management of Eucalypt Psyllids (Insecta, Hemiptera, Psylloidea)

Queiroz, Dalva Luiz de; Burckhardt, Daniel; Majer, Jonathan

doi:10.5772/32631

Cited by 33 publications

(44 citation statements)

References 46 publications

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“…Australian species (i.e. approximately 15% of the world's psyllid fauna) are of particular interest with regard to host specificity because of their explosive radiation on myrtaceous hosts; 90% of these species feed on Eucalyptus alone (Yen, 2002;Austin et al, 2004;Hollis, 2004;de Queiroz et al, 2012). Currently, the mechanisms that underpin psyllid host specificity, such as host finding, nutrition and dispersal, are not well understood.…”

Section: Introductionmentioning

confidence: 99%

Visual acuity trade-offs and microhabitat driven adaptation of searching behaviour in psyllids (Hemiptera: Psylloidea: Aphalaridae)

Farnier

Dyer

Taylor

et al. 2015

Journal of Experimental Biology

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There was an error published in J. Exp. Biol. 218, 1564-1571.The images in Fig. 5 were mislabelled. The correct version is given below.The authors apologise for any inconvenience this may have caused. ABSTRACTInsects have evolved morphological and physiological adaptations in response to selection pressures inherent to their ecology. Consequently, visual performance and acuity often significantly vary between different insect species. Whilst psychophysics has allowed for the accurate determination of visual acuity for some Lepidoptera and Hymenoptera, very little is known about other insect taxa that cannot be trained to positively respond to a given stimulus. In this study, we demonstrate that prior knowledge of insect colour preferences can be used to facilitate acuity testing. We focused on four psyllid species (Hemiptera: Psylloidea: Aphalaridae), namely Ctenarytaina eucalypti, Ctenarytaina bipartita, Anoeconeossa bundoorensis and Glycaspis brimblecombei, that differ in their colour preferences and utilization of different host-plant modules (e.g. apical buds, stems, leaf lamellae) and tested their visual acuity in a modified Y-maze adapted to suit psyllid searching behaviour. Our study revealed that psyllids have visual acuity ranging from 6.3 to 8.7 deg. Morphological measurements for different species showed a close match between inter-ommatidial angles and behaviourally determined visual angles (between 5.5 and 6.6 deg) suggesting detection of colour stimuli at the single ommatidium level. Whilst our data support isometric scaling of psyllids' eyes for C. eucalypti, C. bipartita and G. brimblecombei, a morphological trade-off between light sensitivity and spatial resolution was found in A. bundoorensis. Overall, species whose microhabitat preferences require more movement between modules appear to possess superior visual acuity. The psyllid searching behaviours that we describe with the help of tracking software depict species-specific strategies that presumably evolved to optimize searching for food and oviposition sites.

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Section: Introductionmentioning

confidence: 99%

Visual acuity trade-offs and microhabitat driven adaptation of searching behaviour in psyllids (Hemiptera: Psylloidea: Aphalaridae)

Farnier

Dyer

Taylor

et al. 2015

Journal of Experimental Biology

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“…They are widely used because of their significant advantages over other forest tree species mainly because they are relatively pest-free in their new areas. The increasing rates of introduction and establishment of Australian insects has become an important management issue in most eucalypt growing areas (Withers 2001;Queiroz et al 2012). Invasive eucalypt pests are restricted to this host taxon and there are few records of them establishing on native tree genera.…”

Section: Introductionmentioning

confidence: 99%

First record of two invasive eucalypt psyllids (Hemiptera: Psylloidea) in Israel

et al. 2015

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Two eucalypt-feeding psyllids (Hemiptera: Psylloidea: Aphalaridae): the eucalypt shoot psyllid, Blastopsylla occidentalis Taylor and the red gum lerp psyllid, Glycaspis brimblecombei Moore are reported from Israel for the first time. Both species belong to Spondyliaspidinae, a subfamily of jumping plant lice that feed generally on Myrtaceae, mainly eucalypts. The psyllids were collected from Eucalyptus camaldulensis Dehnh., a dominant eucalypt species in Israel. A summary of the global distribution and the host trees of the two psyllids are provided and their potential threat to eucalypts in Israel is discussed. Diagnostic information to distinguish between the two psyllids is presented, with an identification key for the adults of six eucalypt-feeding psyllid species in the Western Palearctic region.

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“…The species was first described in Australia. In Brazil, B. occidentalis was found feeding on E. grandis and Eucalyptus urophylla S.T.Blake (both are its main hosts), (Queiroz et al, 2012).…”

Section: Introduced Non-quarantine Pests Eucalyptusmentioning

confidence: 99%

“…In Brazil, it is suspected that C. spatulata could be involved in a growth disorder of E. grandis called "seca dos ponteiros", characterized by lateral sprouting, foliar spots, cankers at petiole insertion, and tip dieback. The main parasitoid of this pest, Psyllaephagus pilosus (Noyes, 1988), was introduced accidentally in Brazil and probably restricted the expansion of the pest populations (Queiroz et al, 2012).…”

Section: Introduced Non-quarantine Pests Eucalyptusmentioning

confidence: 99%

A review of the introduced forest pests in Brazil

Schuhli

Penteado

Barbosa

et al. 2016

Pesq. agropec. bras.

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-Special attention should be given to forest plantings in order to minimize the probability of exotic pest introduction and, consequently, of production losses. The objective of this review was to present, under a historic perspective, the main exotic insects that harm the Brazilian forest sector. Therefore, to better describe the phytosanitary context of introduced forest pests in Brazil, the main information regarding these insects was gathered here. Introduced species and species with a risk of introduction were listed. The following species were registered: 12 exotic introduced species related to eucalyptus, non-quarantine; 9 species related to pine, one quarantine; and 1 species related to teak, quarantine. Overall, the core problems for 57 pest species were addressed, followed by projections on current risks and priorities. Biological control programs and their respective agents were also mentioned. For eucalyptus plantations, the species belonging to the genera Ophelimus and Leptocybe are priorities and should be emphasized. Regarding pine species, the main current concerns are Bursaphelenchus xylophilus (transmitted by species of Monochamus), Rhyacionia frustrana, and Dendroctonus frontalis. Better risk management requires reinforcement of phytosanitary inspections and constant refinement of contingency plans, whose actions include monitoring by visual sampling, employment of sentinel plants, and preventive breeding programs aiming at pest resistance.Index terms: exotic pest, forest pest, forest sector, invasive species, pest resistance, quarantine. Um artigo de revisão sobre pragas florestais introduzidas no BrasilResumo -Atenção especial deve ser dada a plantações florestais para minimizar a probabilidade de introdução de pragas exóticas e, consequentemente, as perdas de produção. O objetivo deste artigo de revisão foi apresentar, sob uma perspectiva histórica, os principais insetos exóticos que ameaçam o setor florestal brasileiro. Portanto, para melhor descrever o contexto fitossanitário das pragas florestais introduzidas no Brasil, foram compiladas as principais informações sobre esses insetos. Espécies introduzidas e aquelas com risco de introdução foram listadas. Foram contabilizadas: 12 pragas exóticas introduzidas, relacionadas a eucaliptos, sem status quarentenário; 9 espécies relacionadas ao pinus, uma quarentenária; e 1 espécie relacionada à teca, quarentenária. Ao todo, foram abordados os problemas centrais para 57 espécies, acompanhados de projeções sobre risco atual e prioridades. Programas de controle biológico e seus respectivos agentes também foram citados. Para os plantios de eucaliptos, as espécies pertencentes aos gêneros Ophelimus e Leptocybe são prioritárias e devem ser enfatizadas. Quanto às espécies de pinus, as maiores preocupações são Bursaphelenchus xylophilus (transmitida por espécies de Monochamus), Rhyacionia frustrana e Dendroctonus frontalis. Um melhor gerenciamento de risco requer reforço de inspeções fitossanitárias e constante refinamento dos planos de conting...

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Integrated Pest Management of Eucalypt Psyllids (Insecta, Hemiptera, Psylloidea)

Cited by 33 publications

References 46 publications

Visual acuity trade-offs and microhabitat driven adaptation of searching behaviour in psyllids (Hemiptera: Psylloidea: Aphalaridae)

Visual acuity trade-offs and microhabitat driven adaptation of searching behaviour in psyllids (Hemiptera: Psylloidea: Aphalaridae)

First record of two invasive eucalypt psyllids (Hemiptera: Psylloidea) in Israel

A review of the introduced forest pests in Brazil

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