Galdino Tarcísio Visintin da Silva, Ferreira Dalton de Oliveira, Santana Júnior Paulo Antônio, Arcanjo Lucas de Paulo, Queiroz Elenir Aparecida, Sarmento Renato Almeida, Picanço Marcelo Coutinho
Department of Entomology, Federal University of Viçosa, Peter Henry Rolfs Ave., Viçosa, MG 36570-900, Brazil (
Corresponding author, e-mail:
J Econ Entomol. 2017 Jun 1;110(3):865-874. doi: 10.1093/jee/tox063.
The knowledge of the spatiotemporal dynamics of pathogens and their vectors is an important step in determining the pathogen dispersion pattern and the role of vectors in disease dynamics. However, in the case of mango wilt little is known about its spatiotemporal dynamics and the relationship of its vector [the beetle Hypocryphalus mangiferae (Stebbing 1914)] to these dynamics. The aim of this work was to determine the spatial-seasonal dynamic of H. mangiferae attacks and mango wilt in mango orchards and to verify the importance of H. mangiferae in the spatiotemporal dynamics of the disease. Two mango orchards were monitored during a period of 3 yr. The plants in these orchards were georeferenced and inspected monthly to quantify the number of plants attacked by beetles and the fungus. In these orchards, the percentage of mango trees attacked by beetles was always higher than the percentage infected by the fungus. The colonization of mango trees by beetles and the fungus occurred by colonization of trees both distant and proximal to previously attacked trees. The new plants attacked by the fungus emerged in places where the beetles had previously begun their attack. This phenomenon led to a large overlap in sites of beetle and fungal occurrence, indicating that establishment by the beetle was followed by establishment by the fungus. This information can be used by farmers to predict disease infection, and to control bark beetle infestation in mango orchards.
了解病原体及其传播媒介的时空动态是确定病原体传播模式以及传播媒介在疾病动态中作用的重要一步。然而，对于芒果枯萎病，人们对其时空动态以及其传播媒介（芒果小蠹Hypocryphalus mangiferae (Stebbing 1914)）与这些动态之间的关系知之甚少。这项工作的目的是确定芒果园中芒果小蠹的攻击和芒果枯萎病的空间季节动态，并验证芒果小蠹在该病时空动态中的重要性。在3年的时间里对两个芒果园进行了监测。对这些果园中的植株进行地理定位，并每月进行检查，以量化受甲虫和真菌攻击的植株数量。在这些果园中，受甲虫攻击的芒果树百分比总是高于受真菌感染的百分比。甲虫和真菌对芒果树的定殖是通过对先前受攻击树木远近的树木进行定殖而发生的。受真菌攻击的新植株出现在甲虫先前开始攻击的地方。这种现象导致甲虫和真菌出现的地点有很大重叠，表明在甲虫定殖之后真菌随之定殖。农民可以利用这些信息来预测疾病感染，并控制芒果园中的树皮甲虫侵害。
