Spatial and Temporal Distribution of Leafhoppers (Hemiptera: Cicadellidae) in a Corn Field.

Neotropical Entomology
Gabriela Costa Duarte RibeiroGabriel Mejdalani

Abstract

Leafhoppers (Hemiptera: Cicadellidae) are phytophagous insects that transmit diseases and cause damage to this crop. Thus, the main goal of this study was to verify the spatiotemporal behavior of the leafhoppers Tapajosa ocellata (Osborn, 1926), Dechacona missionum (Berg, 1879), and Dalbulus maidis (DeLong, 1923) in a corn field in Igarapé-Açu, northeastern Pará, northern Brazil. An area of 1.0 ha was used for the development of the study. A mango agroecosystem, a pasture, and secondary forest fragment are adjacent to the experimental area. The sampling of leafhoppers occurred during the 2015 and 2016 harvests. For sampling, 10 random plants per plot were analyzed, totaling 1000 plants per sample. In order to verify the occurrence of leafhoppers, all aerial parts of the plants were analyzed visually. The spatiotemporal behavior of leafhoppers and influence of adjacent areas and phenological stages of corn were verified through geostatistics. From the composition of semivariograms, interpolation maps were constructed by kriging. The results showed that, in 2015, there was a higher incidence of D. maidis compared to the following year. In 2016, 352 individuals of T. ocellata and 66 of D. missionum were observed. Regarding the spa...Continue Reading

References

Feb 21, 2008·Environmental Entomology·Gustavo Moya-RaygozaLowell R Nault
Aug 12, 2014·Planta·Katia PetroniChiara Tonelli
Oct 30, 2015·PloS One·Margaret R DonaldRick R Young

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