Population Fluctuation and Faunistic Analysis of Sharpshooters (Hemiptera: Cicadellidae: Cicadellinae) in Plum Orchards in the Municipality of Protásio Alves, Rio Grande do Sul State, Brazil

Schneider, Natalia A.; Filho, Wilson Sampaio de Azevedo; Giacomelli, Fabio

doi:10.2317/jkes150406.1

Cited by 8 publications

(9 citation statements)

References 10 publications

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“…The situation is different in Brazil for what concern plum production. Cultivation of plum has a great economic importance (Schneider et al, 2017) and the plum leaf scald (PLS) disease, caused by X. fastidiosa, represents a limiting factor for plum production (Dalbo et al, 2018). Symptoms are characterised by leaf scorch and brown rot but the disease produces low fruit quality affecting negatively the weight, the firmness and the size of the fruits (Kleina et al, 2018).…”

Section: Cherry and Plummentioning

confidence: 99%

Update of the Scientific Opinion on the risks to plant health posed by Xylella fastidiosa in the EU territory

Bragard¹,

Dehnen‐Schmutz²,

Serio³

et al. 2019

EFS2

140

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EFSA was asked to update the 2015 EFSA risk assessment on Xylella fastidiosa for the territory of the EU. In particular, EFSA was asked to focus on potential establishment, short-and long-range spread, the length of the asymptomatic period, the impact of X. fastidiosa and an update on risk reduction options. EFSA was asked to take into account the different subspecies and Sequence Types of X. fastidiosa. This was attempted throughout the scientific opinion but several issues with data availability meant that this could only be partially achieved. Models for risk of establishment showed most of the EU territory may be potentially suitable for X. fastidiosa although southern EU is most at risk. Differences in estimated areas of potential establishment were evident among X. fastidiosa subspecies, particularly X. fastidiosa subsp. multiplex which demonstrated areas of potential establishment further north in the EU. The model of establishment could be used to develop targeted surveys by Member States. The asymptomatic period of X. fastidiosa varied significantly for different host and pathogen subspecies combinations, for example from a median of approximately 1 month in ornamental plants and up to 10 months in olive, for pauca. This variable and long asymptomatic period is a considerable limitation to successful detection and control, particularly where surveillance is based on visual inspection. Modelling suggested that local eradication (e.g. within orchards) is possible, providing sampling intensity is sufficient for early detection and effective control measures are implemented swiftly (e.g. within 30 days). Modelling of long-range spread (e.g. regional scale) demonstrated the important role of long-range dispersal and the need to better understand this. Reducing buffer zone width in both containment and eradication scenarios increased the area infected. Intensive surveillance for early detection, and consequent plant removal, of new outbreaks is crucial for both successful eradication and containment at the regional scale, in addition to effective vector control. The assessment of impacts indicated that almond and Citrus spp. were at lower impact on yield compared to olive. Although the lowest impact was estimated for grapevine, and the highest for olive, this was based on several assumptions including that the assessment considered only Philaenus spumarius as a vector. If other xylem-feeding insects act as vectors the impact could be different. Since the Scientific Opinion published in 2015, there are still no risk reduction options that can remove the bacterium from the plant in open field conditions. Short-and long-range spread modelling showed that an early detection and rapid application of phytosanitary measures, consisting among others of plant removal and vector control, are essential to prevent further spread of the pathogen to new areas. Further data collection will allow a reduction in uncertainty and facilitate more tailored and effective control given the intraspecific diversity of X. fastidiosa an...

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Section: Cherry and Plummentioning

confidence: 99%

Update of the Scientific Opinion on the risks to plant health posed by Xylella fastidiosa in the EU territory

Bragard¹,

Dehnen‐Schmutz²,

Serio³

et al. 2019

EFS2

140

View full text Add to dashboard Cite

show abstract

“…A análise faunística de insetos em uma dada região é normalmente realizada através do uso de índices faunísticos, sendo os mais amplamente conhecidos e utilizados a riqueza, constância, frequência e dominância de espécies (SCHNEIDER et al, 2017;SOARES et al, 2020).…”

Section: Análise Faunística Em Entomologiaunclassified

“…Dessa forma, uma espécie é considerada constante quando está presente em mais de 50% das amostras. As outras espécies são também classificadas de acordo com a porcentagem observada, podendo ser classificadas como acessórias (25% -50%) ou acidentais (menos de 25%) (SCHNEIDER et al, 2017;SOARES et al, 2020).…”

Section: Análise Faunística Em Entomologiaunclassified

Ecologia, monitoramento populacional e análise faunística de insetos: uma revisão

et al. 2021

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Os insetos se constituem como a classe mais numerosa e diversa do reino animal. Apresentam uma ampla gama de funções ecológicas em seus ecossistemas naturais, que incluem hábitos de herbivoria, carnivoria e decomposição de detritos. Diversos fatores apresentam capacidade de influenciar no desenvolvimento e estabelecimento dessa classe, com destaque para os fatores abióticos. Com base no exposto, esse trabalho se propõem a revisar os fatores que influenciam na ecologia de insetos, bem com as estratégias para monitoramento populacional e análise faunística desses organismos. Por serem ectotérmicos, os insetos são influenciados pela temperatura do ambiente, que pode comprometer suas taxas de reprodução e seu potencial de herbivoria. A umidade, por sua vez, pode impactar de forma decisiva na aptidão, comportamento reprodutivo e a distribuição geográfica dos insetos. Já a luz, pode levar a alterações comportamentais e no desenvolvimento dessa classe. Para o levantamento populacional de insetos, a obtenção de informações sobre a abundância local de uma espécie são comumente obtidas através da instalação de armadilhas, cujo designers e tipos de iscas podem ser diferentes e serão direcionados às características das espécies-alvo que se deseja avaliar. Essa captura de insetos dá subsídio aos estudos de análise faunística, que fazem uso de índices faunísticos, sendo os mais amplamente conhecidos e utilizados a riqueza, constância, frequência e dominância de espécies, bem como o índice de Simpson e o índice de Shannon.

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“…, Psoralea tenuiflora (Nielson, )Yes Oragua discoidula CitrusMost probably polyphagous (Mejdalani et al., )Yes Parathona gratiosa Citrus Weeds in citrus orchards (Ott et al., );Yes Plesiommata corniculata Citrus, plum Several host plantsYes P. mollicella Citrus Brassica oleracea (Brassicaceae), Lycopersicon esculentum , Solanum sp. (Solanaceae) (de Remes Lenicov et al., and other references therein); Sorghum (de Remes Lenicov et al., )Yes Sibovia sagata CitrusWeeds in citrus orchards (Ott et al., ); Plum (Schneider et al., ); Lantana and basil ( Ocimum basilicum ) (Duarte and Ferreira, ) Yes Sonesimia grossa CitrusPlum (Schneider et al., )Yes Xyphon flaviceps Grapevine Cynodon sp., Trichostema lanceolatum , Chrysothamnus sp. (Dmitriev, ) Yes X. fulgida Grapevine Many hosts (Dmitriev, ) Yes X. triguttata Grapevine Cynodon sp., Trichostema lanceolatum , Chrysothamnus sp. (Dmitriev, ) Yes Subfamily Cicadellinae: tribe Proconiini Acrogonia citrina CitrusWidely polyphagous (Redak et al., )Yes A. virescens Citrus Elaeis guineensis (palm oil tree) (Arecaceae) (Dmitriev, ) Yes Cuerna co...…”

Section: Appendix E – Host/food Plants Of Non‐eu Cicadomorpha Vectors Of Xylella Sppmentioning

confidence: 99%

“…(Caprifoliaceae); Arctostaphylos pungens (Ericaceae); Lotus sp., Lupinus sp. (Fabaceae); Poaceae (Dmitriev, ) Yes Homalodisca ignorata Citrus, coffee Plum (Schneider et al., ) (Marucci et al., )Yes H. insolita PeachPoaceae: Digitaria sanguinalis (crab grass), Panicum dichotimoflorum (fall panicum), Panicum maximum (Guinea grass), Sorghum halepense (Johnson grass) Cenchrus echinatus (southern sandbur); Rosaceae: Prunus persica (peach); Rutaceae: Citrus sinensis (orange)(Overall and Rebek, ; Dmitriev, ) Yes H. vitripennis Almond, citrus, grapevine, oleander, peach, ragweedAppears to be able to feed on most plant species. CABI lists H. vitripennis attacking species in 68 plant families (CABI, ).Yes Molomea consolida Citrus C. sinensis (Dmitriev, ); Prunus salicina (Schneider et al., ); Zea mays (Logarzo et al., )Yes Oncometopia facialis Citrus, coffeeAsteraceae: Vernonia condensata , Vernonia polyanthes , Vernonia sp.…”

Section: Appendix E – Host/food Plants Of Non‐eu Cicadomorpha Vectors Of Xylella Sppmentioning

confidence: 99%

Pest categorisation of non‐EU Cicadomorpha vectors of Xylella spp.

Bragard¹,

Dehnen‐Schmutz²,

Serio³

et al. 2019

EFS2

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The Panel on Plant Health performed a group pest categorisation of non-EU Cicadomorpha vectors of Xylella spp. known to be associated with plant diseases. Although all the insects considered in this categorisation are proven vectors of Xylella spp., additional vectors within the order Hemiptera most probably exist but have not been associated with any Xylella spp. disease yet. Currently, the group consists of 50 taxa (49 at species level and one at genus level) from the families Aphrophoridae, Cicadellidae and Membracidae (Arthropoda: Hemiptera: Cicadomorpha) for which reliable identification methods exist. Members of the group can be found in the Americas, Asia, Africa and Oceania. Only one of them, Homalodisca vitripennis is considered invasive. Species in the group are mostly polyphagous; many are known to feed on several plant families. Hosts can include broadleaf trees, herbaceous plants and grasses. Breeding takes place on herbaceous hosts and eggs are inserted into plant tissues. Nymphs emerge to feed on sap of the natal host. Adults move from breeding hosts to food hosts and can spread Xylella spp. causing a variety of diseases. Three of the species are listed in Annex IAI of Council Directive 2000/29/EC as examples of Cicadellidae (non-EU) known to be vector of Pierce's disease (caused by Xylella fastidiosa). Plants for planting, cut branches, flowers and fruit are potential pathways for entry into the EU. However, there are no records of EU interceptions of any members of the group. EU biotic and abiotic conditions are conducive for establishment and spread of these insects. Were members of the group to establish and spread, impact on several cultivated species (e.g. grapevine, citrus, Prunus spp.) and ornamentals (e.g. Polygala myrtifolia) could be expected as these insect species are efficient vectors of Xylella spp. Considering the criteria within the remit of EFSA to assess their regulatory plant health status, the group of non-EU Cicadomorpha vectors of Xylella spp. meets all the criteria assessed by EFSA for consideration as potential Union quarantine pests. The group does not meet all the criteria assessed by EFSA for consideration as regulated non-quarantine pests, as members of the group are not present in the EU.

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Population Fluctuation and Faunistic Analysis of Sharpshooters (Hemiptera: Cicadellidae: Cicadellinae) in Plum Orchards in the Municipality of Protásio Alves, Rio Grande do Sul State, Brazil

Cited by 8 publications

References 10 publications

Update of the Scientific Opinion on the risks to plant health posed by Xylella fastidiosa in the EU territory

Update of the Scientific Opinion on the risks to plant health posed by Xylella fastidiosa in the EU territory

Ecologia, monitoramento populacional e análise faunística de insetos: uma revisão

Pest categorisation of non‐EU Cicadomorpha vectors of Xylella spp.

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