Esquivel J F, Esquivel S V
USDA-ARS, SPARC, Areawide Pest Management Research Unit, 2771 F&B Rd., College Station, TX 77845, USA.
Environ Entomol. 2009 Jun;38(3):766-80. doi: 10.1603/022.038.0329.
The cotton fleahopper, Pseudatomoscelis seriatus (Reuter), is an early-season pest of developing cotton in Central Texas and other regions of the Cotton Belt. Cotton fleahopper populations develop on spring weed hosts and move to cotton as weed hosts senesce or if other weed hosts are not readily available. To identify weed hosts that were seasonably available for the cotton fleahopper in Central Texas, blooming weed species were sampled during early-season (17 March-31 May), mid-season (1 June-14 August), late-season (15 August-30 November), and overwintering (1 December-16 March) periods. The leading hosts for cotton fleahopper adults and nymphs were evening primrose (Oenothera speciosa T. Nuttall) and Mexican hat [Ratibida columnifera (T. Nuttall) E. Wooton and P. Standley], respectively, during the early season. During the mid-season, silver-leaf nightshade (Solanum elaeagnifolium A. Cavanilles) was consistently a host for fleahopper nymphs and adults. Woolly croton (Croton capitatus A. Michaux) was a leading host during the late season. Cotton fleahoppers were not collected during the overwintering period. Other suitable hosts were available before previously reported leading hosts became available. Eight previously unreported weed species were documented as temporary hosts. A compendium of reported hosts, which includes >160 plant species representing 35 families, for the cotton fleahopper is provided for future research addressing insect-host plant associations. Leading plant families were Asteraceae, Lamiaceae, and Onagraceae. Results presented here indicate a strong argument for assessing weed species diversity and abundance for the control of the cotton fleahopper in the Cotton Belt.
棉盲蝽，即伪盲蝽（Pseudatomoscelis seriatus (Reuter)），是德克萨斯州中部及棉花带其他地区棉花生长早期的一种害虫。棉盲蝽种群在春季杂草寄主上繁殖，随着杂草寄主衰老或其他杂草寄主不易获取时，它们会迁移至棉花上。为确定德克萨斯州中部棉盲蝽在季节上可利用的杂草寄主，在生长早期（3月17日至5月31日）、中期（6月1日至8月14日）、晚期（8月15日至11月30日）和越冬期（12月1日至3月16日）对开花的杂草种类进行了采样。在生长早期，棉盲蝽成虫和若虫的主要寄主分别是月见草（Oenothera speciosa T. Nuttall）和墨西哥帽花[Ratibida columnifera (T. Nuttall) E. Wooton和P. Standley]。在生长中期，银叶茄（Solanum elaeagnifolium A. Cavanilles）一直是棉盲蝽若虫和成虫的寄主。毛巴豆（Croton capitatus A. Michaux）是晚期的主要寄主。在越冬期未采集到棉盲蝽。在先前报道的主要寄主出现之前，还有其他合适的寄主。记录了8种先前未报道的杂草种类作为临时寄主。提供了一份棉盲蝽已报道寄主的纲要，其中包括代表35个科的160多种植物，以供未来研究昆虫与寄主植物关联时参考。主要的植物科为菊科、唇形科和柳叶菜科。此处呈现的结果有力地支持了评估棉花带中杂草种类多样性和丰度以控制棉盲蝽的观点。
