Centro Universitário de Mineiros - UNIFIMES, Mineiros, Brazil.
Departamento de Entomologia, Universidade Federal de Viçosa, Viçosa, Brazil.
Pest Manag Sci. 2019 May;75(5):1346-1353. doi: 10.1002/ps.5251. Epub 2018 Dec 7.
Ceratocystis fimbriata recognized among the species that induce mango sudden decline (MSD), causes plant death within a short period. The beetles Hypocryphalus mangiferae and Xyleborus affinis (Curculionidae: Scolytinae) are the vectors of MSD. Thorough understanding of the spatial distribution of the pest is crucial to designing control techniques and drawing up sampling plans. This study aimed to identify the beetles and their dispersal pattern in mango trees in MSD-infected commercial orchards, and the association with the severity of the C. fimbriata infestation.
Beetle attacks were observed to be maximal on mango tree trunks revealing severe infestation. From the geostatistical analysis, an aggregated pattern was evident as galleries in the trunks and branches of mango trees.
This is the first study to employ geostatic tools on a plant scale in MSD-infested mango orchards and to study the incidence of beetle attack. The results may prove a highly effective tool for mango growers, with respect to the management of beetles and MSD, as this will facilitate the monitoring of specific sites where the frequency of beetles and MSD is high. © 2018 Society of Chemical Industry.
尖孢古巴拟茎点霉是引起芒果突然枯萎（MSD）的物种之一，可在短时间内导致植物死亡。扁甲科（象甲科：小蠹科）中的芒果扁甲 Hypocryphalus mangiferae 和 Xyleborus affinis 是 MSD 的传播媒介。透彻了解害虫的空间分布对于设计控制技术和制定抽样计划至关重要。本研究旨在确定芒果树中的甲虫及其在 MSD 感染商业果园中的扩散模式，以及与尖孢古巴拟茎点霉感染严重程度的关联。
在显示严重感染的芒果树干上观察到甲虫的攻击最为严重。从地统计学分析中可以看出，芒果树干和树枝中的坑道呈现聚集模式。
这是首次在 MSD 感染的芒果果园中采用地统计学工具对植物进行研究，并研究了甲虫攻击的发生率。对于芒果种植者而言，这些结果可能是一种非常有效的工具，有助于管理甲虫和 MSD，因为这将有助于监测甲虫和 MSD 频率较高的特定地点。© 2018 英国化学学会。
