Jandricic Sarah Elizabeth, Summerfield Ashley, Maw H Eric L, Brunet Bryan M T, Buitenhuis Rosemarije
Ontario Ministry of Agriculture, Foodand Rural Affairs, Vineland, ON L0R 2E0, Canada.
Vineland Research and Innovation Centre, Vineland, ON L0R 2E0, Canada.
Insects. 2024 Mar 21;15(3):211. doi: 10.3390/insects15030211.
Proper species identification is the keystone of successful integrated pest management (IPM). However, efforts to identify thrips species in Canadian greenhouses have not been formally made since the 1980s. In response to recent increases in crop damage, we sampled thrips communities from eight commercial floriculture greenhouses in the Niagara region (Ontario, Canada) from May until August 2016. Selected sites were revisited in 2017, 2018, and 2019 to determine changes in species composition over time. Western flower thrips ( (Pergande)), along with onion thrips ( Lindeman), constituted the majority of species found. Other pest species (less than 8% of specimens across all sampling years) included poinsettia thrips ( Morgan), chrysanthemum thrips ( Uzel), and (Hinds). Further investigations of thrips outbreaks in Ontario from 2016 to 2023 revealed other important species, including (Karny), (Reuter), and Hood. The current biocontrol strategies used in Ontario floriculture crops for western flower thrips do not adequately control onion thrips or other thrips pests in ornamental crops, making identification a fundamental step in determining whether biocontrol or chemical control strategies should be implemented. However, traditional taxonomic keys are inaccessible to non-specialists due to their technical difficulty. Using the data gathered in these surveys, we developed a simplified, illustrated identification key for use by growers and IPM consultants.
准确的物种鉴定是成功实施综合虫害管理（IPM）的关键。然而，自20世纪80年代以来，加拿大温室中蓟马物种鉴定工作尚未正式开展。鉴于近期作物受损情况增加，我们于2016年5月至8月对加拿大安大略省尼亚加拉地区8个商业花卉温室中的蓟马群落进行了采样。2017年、2018年和2019年对选定地点进行了重新采样，以确定物种组成随时间的变化。西花蓟马（Frankliniella occidentalis (Pergande)）和葱蓟马（Thrips tabaci Lindeman）是所发现的主要物种。其他害虫物种（在所有采样年份中占标本不到8%）包括一品红蓟马（Echinothrips americanus Morgan）、菊蓟马（Thrips imaginis Uzel）和烟蓟马（Thrips tabaci (Hinds)）。对安大略省2016年至2023年蓟马爆发情况的进一步调查发现了其他重要物种，包括黄蓟马（Thrips flavus (Karny)）、禾蓟马（Thrips angusticeps (Reuter)）和温室蓟马（Heliothrips haemorrhoidalis Hood）。安大略省花卉作物目前用于防治西花蓟马的生物防治策略无法有效控制观赏作物中的葱蓟马或其他蓟马害虫，这使得鉴定成为确定应实施生物防治还是化学防治策略的基本步骤。然而，传统的分类检索表因技术难度大，非专业人员难以使用。利用这些调查收集的数据，我们为种植者和IPM顾问开发了一个简化的、有图示的鉴定检索表。
