Spatial patterns of leprosis and its mite vector in commercial citrus groves in Brazil
Spatial patterns of leprosis and its mite vector in commercial citrus groves in Brazil
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DOI：
10.1111/j.1365-3059.2006.01457.x
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发表时间：
2007-02-01
期刊：
影响因子：
2.7
通讯作者：
Laranjeira, F. F.
中科院分区：
文献类型：
--
作者：
Bassanezi, R. B.;Laranjeira, F. F.
为了描述传播的柑橘麻风病毒（CiLV）和Brevipalpus phoengland，Tenuipalpidae螨传播它，以及生成数据，为今后更好的采样和疾病控制程序的发展，进行了分析，在三个层次的空间层次。在对来自巴西圣保罗州的四个柑橘产区的174个甜橙子商业格罗夫街区进行评估后，构建了100多个螨侵染植物和具有CiLV症状的植物的分布图。螨侵染植物和那些CILV症状的地图之间的空间相关性很低，大多不显着。相邻植物之间的空间依赖性是初期的普通运行分析表明，聚集序列行内或跨行的百分比是非常低的螨侵扰和患病植物。所有样方大小的分散指数（D）值表明聚集的植物样方内的症状，但少得多的聚集螨侵染的植物。log（A）和B的值分别大于0和1，表明在样方内受侵染/患病植物普遍且显著的聚集。但症状植株的聚集程度高于受害植株。聚集在每个格罗夫的发病率呈正相关的侵染/患病植物。空间自相关也表现出较高的聚集强度的症状比虫害的植物。这是第一次麻风病和B。已描述了凤凰。
In order to describe the dissemination of Citrus leprosis virus (CiLV) and Brevipalpus phoenicis, the Tenuipalpidae mite which transmits it, as well as to generate data for future development of better sampling and disease control procedures, analyses were conducted at three levels of spatial hierarchy. Over 100 distribution maps of mite-infested plants and plants with CiLV symptoms were constructed after evaluation of 174 sweet orange commercial grove blocks from four citrus regions of Sao Paulo State, Brazil. Spatial correlation between maps of mite-infested plants and those with CiLV symptoms was very low and mostly not significant. Spatial dependency between adjacent plants was incipient as ordinary runs analysis showed that percentages of aggregated sequences within or across rows were very low for both mite-infested and diseased plants. Index of dispersion (D) values for all quadrat sizes suggested aggregation of plants with symptoms within quadrats, but much less aggregation for mite-infested plants. Values of log(A) and b were higher than 0 and 1, respectively, indicating a general and significant aggregation of infested/diseased plants inside quadrats. However, the degree of aggregation of plants with symptoms was higher than that of infested plants. Aggregation in each grove was positively correlated to the incidence of infested/diseased plants. Spatial autocorrelation also showed a higher strength of aggregation for plants with symptoms than for infested ones. This is the first time that spatial patterns of leprosis and B. phoenicis have been described.