Silva F G, Passos E M, Diniz L E C, Teodoro A V, Talamini V, Fernandes M F, Dollet M
Universidade Federal de Sergipe, Avenida Marechal Rodon, Jardim Rosa Elze, São Cristovão, Sergipe, 49100-000, Brasil.
Embrapa Tabuleiros Costeiros, Aracaju, Sergipe, Brasil.
Neotrop Entomol. 2019 Feb;48(1):171-174. doi: 10.1007/s13744-018-0663-y. Epub 2019 Jan 10.
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.
致死黄化病（LY）是一种主要的植原体病害，严重威胁着全球的椰子种植园，且有即将传入巴西的风险。LY植原体局限于韧皮部，由稻虱Haplaxius crudus（Van Duzee）（角蝉科）传播。在本研究中，2016年5月在巴西北部帕拉州，使用黄色粘虫板在矮种与矮种杂交种以及巴西绿矮种吉基的叶片上采集了半翅目昆虫。在巴西绿矮种吉基的椰子种植园中发现了稻虱H. crudus，占捕获个体的87%。这是巴西椰子种植园中稻虱作为传病媒介的首次报道。这些发现具有重大的科学意义，因为稻虱可能对巴西椰子产业产生负面影响，并且在LY传入该国的情况下，这些知识可用于应急措施。
