| 杧小果普瘿蚊幼虫的空间分布型和抽样技术研究 |
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| 引用本文： | 龙秀珍,韦德卫,高旭渊,何瞻,江小冬,莫贱友,黄战威,黄慧俐,曾宪儒,于永浩.杧小果普瘿蚊幼虫的空间分布型和抽样技术研究[J].南方农业学报,2021,52(7):1835-1842. |
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| 作者姓名： | 龙秀珍 韦德卫 高旭渊 何瞻 江小冬 莫贱友 黄战威 黄慧俐 曾宪儒 于永浩 |
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| 作者单位： | 1 广西农业科学院植物保护研究所/广西作物病虫害生物学重点实验室/农业农村部南宁作物有害生物科学观测实验站, 南宁 530007;2 百色芒果研究院, 广西百色 533000;3 广西百色市现代农业技术研究推广中心, 广西百色 533000 |
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| 基金项目： | 广西科技重大专项（桂科AA17202018）；广西农业科学院基本科研业务专项（桂农科2021YT067）；广西作物病虫害生物学重点实验室系统性课题（17-259-47-ST-4） |
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| 摘 要： | 【目的】明确杧小果普瘿蚊幼虫在芒果树上的空间分布型和抽样技术，为杧小果普瘿蚊的科学测报及精准防控提供理论指导。【方法】于2018—2020年，在广西百色市永乐镇芒果园进行杧小果普瘿蚊幼虫随机取样调查，采用聚集度指标法、Iwao回归分析法和Taylor幂法则对杧小果普瘿蚊幼虫的空间分布型和抽样技术进行研究，建立Iwao理论抽样模型，通过种群聚集均数分析其聚集原因。【结果】杧小果普瘿蚊幼虫主要分布在芒果树冠的中层和下层，树冠各方位的虫量比率无显著差异（P>0.05）；聚集度指标法、Iwao回归法和Taylor幂法则测定结果表明，杧小果普瘿蚊幼虫在芒果树上均呈聚集分布，个体间相互吸引，聚集强度与种群密度成正比。根据抽样公式计算得出杧小果普瘿蚊幼虫的最适抽样数模型N=3.8416/D2（6.98972/m+0.171）。【结论】杧小果普瘿蚊幼虫主要分布在芒果树冠的中层和下层，在芒果树上呈聚集分布，主要是由其自身的产卵习性和环境因素共同作用所引起。
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| 关 键 词： | 杧小果普瘿蚊 空间分布型 抽样技术 |
| 收稿时间： | 2021-03-08 |
Spatial distribution pattern and sampling technique of Procontarinia fructiculi Jiao,Wang,Bu & Kolesik larvae |
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| LONG Xiu-zhen,WEI De-wei,GAO Xu-yuan,HE Zhan,JIANG Xiao-dong,MO Jian-you,HUANG Zhan-wei,HUANG Hui-li,CENG Xian-ru,YU Yong-hao.Spatial distribution pattern and sampling technique of Procontarinia fructiculi Jiao,Wang,Bu & Kolesik larvae[J].Journal of Southern Agriculture,2021,52(7):1835-1842. |
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| Authors: | LONG Xiu-zhen WEI De-wei GAO Xu-yuan HE Zhan JIANG Xiao-dong MO Jian-you HUANG Zhan-wei HUANG Hui-li CENG Xian-ru YU Yong-hao |
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| Affiliation: | 1 Plant Protection Research Institute, Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Biology for Crop Diseases and Insect Pests/Crop Pest Scientific Observation and Experimental Station of Nanning, Ministry of Agriculture and Rural Affairs, Nanning 530007, China;2 Mango Research Institute of Baise, Baise, Guangxi 533000, China;3 Baise Modern Agricultural Technology Research and Promotion Center, Baise, Guangxi 533000, China |
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| Abstract: | 【Objective】 The spatial distribution pattern and sampling technique of Procontarinia fructiculi Jiao, Wang, Bu & Kolesik larvae on mango trees were clarified to provide a scientific basis for drawing up forecast and targeted control measures for P. fructiculi.【Method】 The random sampling methodwas used in investigations on the P. fructiculi larvae in the mango orchard of Yongle Town, Baise City, Guangxi from 2018 to 2020. The spatial distribution pattern and sampling technique of the P. fructiculi larvae on mango trees was investigated and determined by using clustering index, Iwao's regression equation and Taylor's power law, establish a Iwao theoretical sampling model, and the reasons for the aggregation was analyzed by the aggregation mean.【Result】 P. fructiculi larvaemainly distributed in the middle and lower layers of the mango tree canopy, there were no significant difference in quantity ratio of P. fructiculi larvae among different directions of the canopy(P>0.05); clustering index, Iwao's regression equation and Taylor's power law indicated that, P. fructiculi larvae tended to be in aggregated distribution on mango trees, individuals attracted each other, the aggregation degree was proportional to population density. The optimum sampling model of P. fructiculi larvaewas calculated according to the sampling formula, N=3.8416/D2(6.98972/m+0.171). 【Conclusion】 P. fructiculi larvae mainly distribut in the middle and lower layers of the mango tree canopy, P. fructiculi larvae are in aggregated distribution on mango trees.The reasons for aggregation are jointly caused by its spawning habits and the environment. |
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