Leptodelphax maculigera (Hemiptera: Delphacidae): first occurrence in Southern Brazil and potential rayadofino vector

Bortolotto, O. C.; Molina, R. O.; Garcia, M. H.; Pazini, J. B.; Andrade, C. C. L.; Mituti, T.

doi:10.1590/1519-6984.277457

Braz. J. Biol.

2023

DOI: 10.1590/1519-6984.277457

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Leptodelphax maculigera (Hemiptera: Delphacidae): first occurrence in Southern Brazil and potential rayadofino vector

O. C. Bortolotto,

R. O. Molina,

M. H. Garcia

et al.

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2024

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Leptodelphax maculigera (Hemiptera: Delphacidae) Harbors the Corn Stunt Complex Pathogens

Canale,

Pompelli Manica,

Silva de Andrade

et al. 2024

Plant Disease

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The African planthopper Leptodelphax maculigera (Hemiptera: Delphacidae) has been recently reported in many places in Brazil in association with maize. Its occurrence in maize production fields in Brazil has brought concerns to the corn production chain regarding the possibility of this planthopper to be a vector for maize bushy stunt phytoplasma (MBSP), corn stunt spiroplasma (Spiroplasma kunkelii), maize rayado fino virus (MRFV) and maize striate mosaic virus (MSMV). The phytoplasma and spiroplasma, that are bacteria belonging to the Class Mollicutes, and the two viruses are associated with the corn stunt disease complex. Given the presence of the African planthopper species and the corn stunt disease complex in Brazil, we further investigated the abundance of this planthopper species in Santa Catarina state, Brazil, and whether the planthopper can carry the four pathogens. We inspected 12 maize production fields in different municipalities in the state for 20 weeks, using two yellow sticky traps for each maize field. The sticky traps were replaced weekly. A total of 130 specimens of L. maculigera were captured, with a great discrepancy in quantity among locations and weeks. We detected the mollicute MBSP, and the viruses MRFV and MSMV in L. maculigera, whereas S. kunkelii was absent in the assessed African planthopper samples. The molecular detection of the phytoplasma and the viruses in field-collected African planthoppers is a strong evidence that this insect species has the ability of acquiring those pathogens through feeding from phloem of diseased maize plants. Nonetheless, transmission capacity needs to be experimentally proven to assert L. maculigera as a vector for the corn stunting pathogens.

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Leptodelphax maculigera (Hemiptera: Delphacidae) Harbors the Corn Stunt Complex Pathogens

Canale,

Pompelli Manica,

Silva de Andrade

et al. 2024

Plant Disease

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Leptodelphax maculigera (Hemiptera: Delphacidae): first occurrence in Southern Brazil and potential rayadofino vector

Cited by 1 publication

References 9 publications

Leptodelphax maculigera (Hemiptera: Delphacidae) Harbors the Corn Stunt Complex Pathogens

Leptodelphax maculigera (Hemiptera: Delphacidae) Harbors the Corn Stunt Complex Pathogens

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