Keynote Address: Heat-tolerant Asian HLB meets heat-sensitive African HLB in the Arabian Peninsula! Why?

Bové, Josy

doi:10.5070/c411024569

Cited by 20 publications

(5 citation statements)

References 102 publications

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“…A new parasitoid species belonging to the genus Tamarixia has also been shown to control T. erytrea (Pérez-Rodríguez et al 2019). Tamarixia dryi has been successfully used in classical biological control programs in Mauritius and the Reunion Island (Bové 2014;Étiennea et al 2001 and references therein) and shows great promise for Europe (Urbaneja-Bernat et al 2019). In all cases above, the parasitoids were sourced from South Africa, where citrus production is a huge industry in SSA.…”

Section: Use Of Parasitoidmentioning

confidence: 99%

Important alien and potential native invasive insect pests of key fruit trees in Sub-Saharan Africa: advances in sustainable pre- and post-harvest management approaches

2022

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Fruit production in Sub-Saharan Africa is of paramount importance both socially and economically. Millions of farmers derive livelihoods from mango, avocado, citrus, cashew, and coconut farming, but native and alien invasive species constrain production The region’s capacity to contain invasives is weak due to the absence of national and institutional support systems for early detection, containment, eradication, or management of the pests. Climate change is expected to play a huge role in the influx of more alien invasive species and the shift of ecological requirements of some native species. Though a fair share of pre-and post-management pest management techniques for several insect pests has been developed, adoption and adaptation of the options are limited. Data on economic and social implications are largely lacking, making it challenging to implement informed policy decisions. The existence of the “Strategy for Managing Invasive Species in Africa 2021–2030” promises a paradigm shift in the management of invasives, from reactive thinking to coordinated proactive approaches. The uncoordinated deployment of management measures in the region and the lack of funding, play a negative role in managing the pests effectively. Prospects for enhanced future research are wide, and efforts are currently being channeled to Area-Wide-Integrated Pest Management in a bottom-up approach with stakeholders owning the process. Participatory development of technologies is also taking centre stage, paving the way for increased adoption and adaptation. Postharvest technologies promise to provide the adequate phytosanitary assurance required by countries importing fruit from Sub-Saharan Africa.

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Section: Use Of Parasitoidmentioning

confidence: 99%

Important alien and potential native invasive insect pests of key fruit trees in Sub-Saharan Africa: advances in sustainable pre- and post-harvest management approaches

2022

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“…Eastward spread of the disease from northwest South Asia has progressively inflicted serious economic havoc on citrus cultivation throughout Asia since the 1800s. The psyllid and the pathogen are now widespread in Asian countries and the American countries [1] and most recently have been recorded in several countries in Africa. [2][3][4][5] Symptoms of the disease, ascribed to damage caused by D. citri, were first recorded in the Punjab in the 1920s.…”

Section: Introductionmentioning

confidence: 99%

“…Undersized fruit, and poor and insipid juice were attributed to this 'toxin', and branches not directly attacked became prematurely dry. Descriptions of citrus maladies observed in India [7][8][9] and China [10] before 1920 have been incorrectly interpreted by many contemporary authors, including Capoor [9], Zhao [11], da Graça [12], and Bové ( [1,13], as symptoms of HLB. Oft repeated in the literature (including Zhao [11], da Graça [12], Bové [1,13] is that CLas originated in China; however, there is no evidence for this.…”

Section: Introductionmentioning

confidence: 99%

“…Descriptions of citrus maladies observed in India [7][8][9] and China [10] before 1920 have been incorrectly interpreted by many contemporary authors, including Capoor [9], Zhao [11], da Graça [12], and Bové ( [1,13], as symptoms of HLB. Oft repeated in the literature (including Zhao [11], da Graça [12], Bové [1,13] is that CLas originated in China; however, there is no evidence for this. Also, no evidence was found that it evolved with Citrus, but it may have evolved in association with a Citrus relative.…”

Section: Introductionmentioning

confidence: 99%

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Can Oecophylla smaragdina be used to suppress incidence of CVPD in citrus orchards in Indonesia?

Beattie

Holford

2022

IOP Conf. Ser.: Earth Environ. Sci.

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Citrus vein phloem degeneration (CVPD) is the Indonesian name for the Asian form of the devastating and incurable citrus disease known internationally as huánglóngbìng. It is associated with a phloem-limited pathogen, ‘Candidatus Liberibacter asiaticus’ (CLas) and transmitted by the Asiatic citrus psyllid (ACP), Diaphorina citri. ACP originated in South Asia but was first observed on citrus in 1900 in Java to where it may have been introduced decades earlier on lemon or lime seedlings brought from South Asia to reduce the incidence of scurvy among European sailors and in colonial settlements. CLas appears to have been introduced to the Pasar Minggu area of Jakarta in the 1940s from southern China, after it was introduced to Guangzhou, directly or indirectly, from South Asia in the late 1920s–early 1930s. Minimising incidence of the disease relies on planting pathogen-free trees, removal of infected trees, and unstainable use of synthetic pesticides that do not prevent spread of the disease. Parasitoids and predators of ACP are killed by the pesticides. Evidence from China and Việtnam suggests that effective management of the disease may be feasible if the weaver ant (semut rangrang), Oecophylla smaragdina, is deployed, cultivated, and managed in orchards.

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“…Decades later, D. communis was reported as a serious pest of B. koenigii (cited as Murraya koenigii (L.) Sprengel) in the state of Jammu and Kashmir in India (Tara & Sharma, 2010a, b). In Bhutan, it was first identified in 2007 (Bové, 2014;Yamamoto, 2007) but could have been present much earlier. It is mainly found on curry leaf and occasionally observed on mandarin.…”

mentioning

confidence: 98%

Diaphorina communis: Molecular identification, development on Citrus reticulata, and acquisition and transmission of ‘Candidatus Liberibacter asiaticus’

Beattie

Donovan

et al. 2021

J Applied Entomology

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Many species of psyllids are important pests of agricultural crops (Burckhardt, 1985(Burckhardt, , 1994. Their feeding may cause necroses, galling and malformations of their host plants (Burckhardt, 1994;Markkula & Laurema, 1971;Wallis, 1955). Certain species are also vectors of serious plant pathogens, including bacteria, phytoplasmas and viruses (Munyaneza, 2010). The Asiatic citrus psyllid, Diaphorina citri Kuwayama (Hemiptera: Psyllidae), is the main vector of 'Candidatus Liberibacter asiaticus' ('CLas'), the pathogen primarily responsible for the devastating impacts of the severe Asian form of huanglongbing (HLB) on citrus production in Asia and most recently in the Americas

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Keynote Address: Heat-tolerant Asian HLB meets heat-sensitive African HLB in the Arabian Peninsula! Why?

Abstract: This presentation is dedicated to the memory of Monique Garnier who detected, by transmission electron microscopy, the HLB bacterium in the many countries reported in this presentation.

Cited by 20 publications

References 102 publications

Important alien and potential native invasive insect pests of key fruit trees in Sub-Saharan Africa: advances in sustainable pre- and post-harvest management approaches

Important alien and potential native invasive insect pests of key fruit trees in Sub-Saharan Africa: advances in sustainable pre- and post-harvest management approaches

Can Oecophylla smaragdina be used to suppress incidence of CVPD in citrus orchards in Indonesia?

Diaphorina communis: Molecular identification, development on Citrus reticulata, and acquisition and transmission of ‘Candidatus Liberibacter asiaticus’

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