Relative contribution of rainfall and coconut hybrids to the abundance and composition of the Auchenorrhyncha community as potential vectors of phytoplasmas in the state of Sergipe, Brazil

  title={Relative contribution of rainfall and coconut hybrids to the abundance and composition of the Auchenorrhyncha community as potential vectors of phytoplasmas in the state of Sergipe, Brazil},
  author={Flaviana G. da Silva and Eliana M Dos Passos and Leandro Eugenio Cardamone Diniz and Marcelo Ferreira Fernandes and Charles Bartlett and Michel Dollet and Adenir Vieira Teodoro},
  journal={Agricultural and Forest Entomology},
The quarantine disease Lethal Yellowing (LY) is currently the main threat to coconut cultivation in Brazil. LY is caused by phytoplasmas and is transmitted by Haplaxius crudus (Hemiptera: Cixiidae), although other planthoppers/leafhoppers could be involved. We assessed the Auchenorrhyncha community composition on various coconut hybrids, including association with parental and nonparental dwarf coconut accessions. The Auchenorrhyncha were trapped in 2016 between the dry and rainy seasons (March… 


Rainfall and Coconut Accession Explain the Composition and Abundance of the Community of Potential Auchenorrhyncha Phytoplasma Vectors in Brazil
It is concluded that dwarf coconut host several Auchenorrhyncha species potential phytoplasma vectors, and coconut accessions could be exploited in breeding programs aiming at prevention of LY.
Seasonal abundance of Maiestas banda (Hemiptera: Cicadellidae), a vector of phytoplasma, and other leafhoppers and planthoppers (Hemiptera: Delphacidae) associated with Napier grass (Pennisetum purpureum) in Kenya
It is confirmed that a leafhopper, Maiestas banda (Kramer) transmits phytoplasma in Napier grass in Kenya, and high population densities were observed for M. banda, suggesting that it plays a major role in the disease epidemics in the region.
Potential Planthopper Vectors of Palm Phytoplasmas in Florida with a Description of a New Species of the Genus Omolicna (Hemiptera: Fulgoroidea)
It is found that H. crudus can overwinter consistently as far north as Gainesville, suggesting that the northern limit of LY might be a function of the physiology of the pathogens rather than the distribution of the vector.
Coconut Lethal Yellowing Diseases: A Phytoplasma Threat to Palms of Global Economic and Social Significance
Advances in technology such as loop mediated isothermal amplification for detection and tracking of phytoplasma DNA in plants and insects, remote sensing for identifying symptomatic palms, and the advent of clustered regularly interspaced short palindromic repeats (CRISPR)-based tools for gene editing and plant breeding are likely to allow rapid progress in taxonomy as well as understanding and managing LYD phy toplasma pathosystems.
Detection and variability of the lethal yellowing group (16Sr IV) phytoplasmas in the Cedusa sp. (Hemiptera: Auchenorrhyncha: Derbidae) in Jamaica
Variation in Restriction fragment length polymorphism analysis of the nested PCR product revealed variations in 6/13 Derbids analysed, suggesting that the planthoppers could be infected with different strains of the LY group phytoplasma.
Survey of Leafhopper Species in Almond Orchards Infected with Almond Witches'-Broom Phytoplasma in Lebanon
Although the detection of phytoplasmas in an insect does not prove a definite vector relationship, the technique is useful in narrowing the search for potential vectors.
Transmission of ‘Candidatus Phytoplasma solani’ by Reptalus quinquecostatus (Hemiptera: Cixiidae)
Observations of adults feeding on grapevines in vineyards consolidate the hypothesis that R. P. quinquecostatus is a specific vector of ‘Ca. solani’ epidemiology, and this planthopper can contribute to maintain an alternative ‘ Ca. solANI’ cycle in weeds even in the absence of H. obsoletus.
Evidence of transmission of palm lethal yellowing agent by a planthopper, Myndus crudus (Homoptera, Cixiidae).
The results of this experiment provide the strongest evidence yet published that M. crudus is a vector of LY agent.
Nymphocixia caribbea (Fennah) (Homoptera : Cixiidae) potential candidate as coconut lethal yellowing vector in the Carribean
Cloning and sequencing showed that sequences obtained from the insects matched the sequences of some phytoplasmas isolated from LY affected palms from Cuba, which could have originated in the alimentary bolus of insects feeding on diseased coconuts.
Experimental and molecular evidence of Reptalus panzeri as a natural vector of bois noir
This study addresses the involvement of other planthoppers and/or leafhoppers in BN epidemics in the South Banat district of northeastern Serbia, by performing transmission experiments and multilocus typing of stolbur phytoplasma isolates to determine the vector-related characteristics of the disease.