| 扶桑绵粉蚧雌成虫在大花马齿苋上的空间格局 |
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| 引用本文： | 黄俊,沈福泉,李明江,郁永明,吕要斌.扶桑绵粉蚧雌成虫在大花马齿苋上的空间格局[J].昆虫知识,2012,49(6):1648-1651. |
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| 作者姓名： | 黄俊 沈福泉 李明江 郁永明 吕要斌 |
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| 作者单位： | 1. 浙江省农业科学院花卉研究开发中心 杭州311202
2. 浙江省农业科学院植物保护与微生物研究所 杭州 310021 |
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| 基金项目： | 农业部公益性行业科研专项（201103026）、浙江省重点科技创新团队项目（2011R50034-14）.致谢：浙江省萧山棉麻研究所张飞博士对本试验提出了宝贵建议,在此致以衷心感谢! |
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| 摘 要： | 本文对外来入侵害虫扶桑绵粉蚧Phenacoccus solenopsisTinsley雌成虫在大花马齿苋(Portulaca grandiflora Hook)上的空间分布特征进行了研究。结果表明,在水平上的空间分布表现为聚集分布,个体间相互吸引,分布的基本成分为个体群;雌成虫密度m和平均拥挤度m*间的回归方程为:m*=12.4595+1.2649m;雌成虫在大花马齿苋枝条上、中层虫口数量均显著多于下层。确定了不同虫口密度及不同允许误差下的最适抽样数。
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| 关 键 词： | 扶桑绵粉蚧 空间分布 大花马齿苋 |
Spatial distribution of female adults of Phenacoccus solenopsis Tinsley （ Hemiptera： Pseudococcidae） on Portulaca grandiflora |
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| HUANG Jun,SHEN Fu-Quan,LI Ming-Jiang YU Yong-Ming,LV Yao-Bin.Spatial distribution of female adults of Phenacoccus solenopsis Tinsley （ Hemiptera： Pseudococcidae） on Portulaca grandiflora[J].Entomological Knowledge,2012,49(6):1648-1651. |
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| Authors: | HUANG Jun SHEN Fu-Quan LI Ming-Jiang YU Yong-Ming LV Yao-Bin |
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| Institution: | 2.＊( 1. Research and Development Centre of Flower, Zhejiang Academy of Agricultural Sciences, Hangzhou 311202, China; 2. Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China) |
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| Abstract: | The spatial distribution of the female adults of Phenacoccus solenopsis Tinsley （ I-Iemiptera： Pseudococcidae） on Portulaca grandiflora Hook was studied. The results show that the spatial distribution of P. solenopsis was highly aggregative with reciprocal attraction among individuals. The basic component of distribution was the individual group; the linear regression line had an equation of the form m^＊ = 12.4595 ＋ 1. 2649 m, where m＊ is the mean crowding and m is the density of female adults. Furthermore, the number of P. solenopsis on the upper or middle part of plants was significantly greater than on the lower part. Lastly, the theoretical sampling numbers of female adults of P. solenopsis were determined under different population densities allowing for sampling error. |
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| Keywords: | Phenacoccus solenopsis spatial distribution Portulaca grandiflora |
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