ABSTRACT
The lethal yellowing (LY) is a major phytoplasma causing disease seriously threatening coconut plantations worldwide, with imminent risk of entering Brazil. The LY phytoplasma is restricted to the phloem and transmitted by the planthopper Haplaxius crudus (Van Duzee) (Cixiidae). In this study, Auchenorrhyncha were collected on the leaves of Dwarf vs. Dwarf hybrids and Brazilian Green Dwarf Jiqui in the Brazilian northern state of Para using yellow adhesive traps in May of 2016. The planthopper H. crudus was found in coconut plantations of Brazilian Green Dwarf Jiqui, accounting for 87% of the individuals captured. This is the first report of vector H. crudus in Brazilian coconut plantations. These findings are of great scientific relevance since H. crudus could negatively impact the Brazilian coconut industry and this knowledge could be used in contingency measures in the case of LY be introduced in the country.
Subject(s)
Cocos , Hemiptera , Animals , Brazil , Insect Vectors , Phytoplasma , Plant Diseases/microbiology , Plant LeavesABSTRACT
Os ácaros tetraniquídeos representam importantes pragas para diversas culturas agrícolas em todo o mundo. Durante a prospecção em mudas de Erytrina velutina no distrito de São Cristovão, Estado de Sergipe, Brasil, a ocorrência destes foi observada em 15 por cento das mudas que foram levadas ao laboratório para a caracterização dos danos. As mudas apresentavam sintomas de redução e encarquilhamento do limbo. Foram coletados 100 indivíduos destas plantas, os quais foram montados em lâminas de microscopia para a identificação taxonômica. Os ácaros foram identificados como pertencentes à espécie Tetranychus neocaledonicus (Acari: Tetranychidae). Este é o primeiro relato em E. velutina, como hospedeira para T. neocaledonicus no Brasil.
Spider mites are important pests to several crops worldwide. During prospecting in Erytrina velutina specimens from São Cristovão District, Sergipe State, Brazil, their occurrence was observed in 15 percent seedlings, which were taken to the laboratory for description of damages. The seedlings presented leaf blade reduction and crumpling symptoms. One hundred mites were collected from these seedlings and mounted on microscope slides for taxonomic identification. The identified mites belonged to the species Tetranychus neocaledonicus (Acari: Tetranychidae). This is the first report of E. velutina as host for T. neocaledonicus in Brazil.
Subject(s)
Acari/growth & development , Trees/parasitology , Brazil , Erythrina/growth & development , Erythrina/parasitology , Plant Shoots/parasitology , Host-Parasite InteractionsABSTRACT
Os autores apresentam dois casos de schwannoma cutis cujo diagnostico foi realizado pelo exame histopatologico.Fazem um breve resumo bibliografico e algumas rapidas consideracoes gerais sobre a referida afeccao
Subject(s)
Child, Preschool , Adult , Humans , Male , Neurilemmoma , Skin NeoplasmsABSTRACT
A case of calvarial meningeoma in a 42 year old female is reported. Arising from the inner table of the skull, it projected a extracranial mass without neurological simptomatology. The surgical procedure give good results. Some aspects of the literature and radiologics finds are commented. The infrequency of this pathology is resulted.
Subject(s)
Meningioma/pathology , Skull Neoplasms/pathology , Adult , Cerebral Angiography , Female , Humans , Meningioma/diagnostic imaging , Skull Neoplasms/diagnostic imagingABSTRACT
Os autores relatam um caso de meningeoma ectopico de calvario, submetido a tratamento cirurgico com boa evolucao. Comentam alguns aspectos referidos na literatura, ressaltando as caracteristicas radiologicas. Justificam o presente relato pela infrequencia do mesmo, bem como pelo bom prognostico quando submetido a tratamento adequado
