Department of Entomology, Soils, and Plant Sciences, Clemson University, Florence, SC 29506-9727, USA.
J Econ Entomol. 2009 Dec;102(6):2360-70. doi: 10.1603/029.102.0643.
Stink bugs (Hemiptera: Pentatomidae) were sampled in commercial cotton, Gossypium hirsutum L., fields in 2007 and 2008 in South Carolina and Georgia. The main species collected with the beat cloth and sweep net methods were green stink bug, Acrosternum hilare (Say) (63 and 57%, respectively); brown stink bug, Euschistus servus (Say) (23 and 18%, respectively); and southern green stink bug, Nezara viridula (L.) (14 and 22%, respectively). Average stink bug densities were 0.145 +/- 0.010 (mean +/- SEM) for adults and 0.250 +/- 0.027 for nymphs per 3.7 m of row by using the beat cloth method. Average stink bug densities were 0.291 +/- 0.016 for all adults and 0.137 +/- 0.018 for all nymphs per 50 sweeps. A density of two southern green stink bugs per 3.7 m of row by using the beat cloth method required 43 samples (reliability or precision, Dx = 0.3) for population estimation, whereas 88 samples were necessary for a density of two southern green stink bugs per 50 sweeps. At low densities, the sweep net was a more cost-reliable sampling method for all species and life stages. For adult stink bugs, the beat cloth method became more reliable at densities of 1.0, 3.2, and 5.8 stink bugs per 3.7 m of cotton row for southern green stink bug, brown stink bug, and green stink bug, respectively. Sequential sampling consistently reduced sample size for all insects compared with a fixed sampling plan.
2007 年和 2008 年，在南卡罗来纳州和佐治亚州的商业棉花种植田中，使用拍打法和 sweepnet 法采集了蝽（半翅目：Pentatomidae）。用拍打法和 sweepnet 法采集的主要种类是绿椿象（Acrosternum hilare (Say)）（分别为 63%和 57%）；棕椿象（Euschistus servus (Say)）（分别为 23%和 18%）；以及南方绿椿象（Nezara viridula (L.)）（分别为 14%和 22%）。用拍打法采集时，每 3.7 米棉行的成虫平均密度为 0.145 +/- 0.010（平均值 +/- SEM），若虫平均密度为 0.250 +/- 0.027。用 sweepnet 法采集时，所有成虫的平均密度为 0.291 +/- 0.016，所有若虫的平均密度为 0.137 +/- 0.018。每 3.7 米棉行用拍打法采集到 2 只南方绿椿象时，需要进行 43 次抽样（可靠性或精度，Dx = 0.3）进行种群估计，而每 50 次 sweepnet 采集则需要 88 次。在低密度下，sweepnet 法对于所有种类和生活阶段都是一种更具成本效益的采样方法。对于成虫，当南方绿椿象、棕椿象和绿椿象每 3.7 米棉行的密度分别为 1.0、3.2 和 5.8 时，拍打法的可靠性更高。与固定采样方案相比，连续抽样法始终可以减少所有昆虫的样本量。
