Adeleye Victoria O, Seal Dakshina R, Martini Xavier, Meru Geoffrey, Liburd Oscar E
Tropical Research and Education Center, Entomology and Nematology Department, University of Florida's Institute of Food and Agricultural Sciences (UF/IFAS), Homestead, FL 33031, USA.
North Florida Research and Education Center, Entomology and Nematology, University of Florida, Quincy, FL 32351, USA.
Insects. 2024 Jul 30;15(8):579. doi: 10.3390/insects15080579.
The pepper weevil, Cano, is an economically important pest of cultivated peppers () in tropical and subtropical regions of the world. This study aimed to ascertain the spatial distribution of pepper weevil infestation across various fields in Miami Dade County, South Florida. The spatio-temporal dynamics of pepper weevil were evaluated using 144 sample points within each of seven pepper fields. The data were analyzed using three different geospatial techniques, spatial analysis by distance indices (SADIE), Moran's I, and Geary's C, to determine the spatial distribution of pepper weevil. The SADIE analysis revealed a significant aggregation distribution in 18 out of 30 sampling dates across all fields. The results from Geary's C and Moran's I indices indicated a positive spatial autocorrelation (spatial clustering/aggregation) of pepper weevil regardless of field or pepper types. Overall, the findings from this study depict an aggregated spatial distribution pattern of pepper weevil populations, characterized by a tendency for aggregation that transitions to a more uniform distribution as the season progresses.
胡椒象甲(Cano)是世界热带和亚热带地区栽培辣椒的一种具有重要经济意义的害虫。本研究旨在确定南佛罗里达州迈阿密 - 戴德县各田地中胡椒象甲虫害的空间分布。利用七个辣椒田中的每一个田内的144个采样点评估胡椒象甲的时空动态。使用三种不同的地理空间技术(距离指数空间分析(SADIE)、莫兰指数I和Geary指数C)对数据进行分析,以确定胡椒象甲的空间分布。SADIE分析显示,在所有田地的30个采样日期中的18个日期呈现出显著的聚集分布。Geary指数C和莫兰指数I的结果表明,无论田地或辣椒类型如何,胡椒象甲均存在正空间自相关(空间聚类/聚集)。总体而言,本研究结果描绘了胡椒象甲种群的聚集空间分布模式,其特征是随着季节的推进,聚集趋势转变为更均匀的分布。