Systena frontalis (F.) (Coleoptera: Chrysomelidae) is an important pest in ornamental plant nurseries in the United States. Information on current pest status and management practices employed by nurseries, garden centers, and landscape care operations are crucial to developing an effective research and extension program for ornamental crops. An online survey was developed and administered by the research team in 2020 to gather data on pest status and current pest management practices. The questionnaire included three focus areas: 1) participant (location, industry type, or operating area); 2) pest status indicators (incidence, affected crops, and estimated loss); and 3) common pest management practices. The questionnaire was distributed to stakeholders via e-mail lists, newsletters, and blogs. Seventy-five responses were received; 82.6% of which were from wholesale nursery operators in 19 U.S. states and 1 Canadian province. For most respondents (72%), damage recurred yearly in the past 10 yr and persisted from April to October. About 56% of respondents reported damage on more than five host plant species (with Hydrangea spp. being the most frequently identified) representing approximately 25% of the total number of plants grown in the facilities. Presence of S. frontalis is being monitored mainly through visual inspection of foliage for adult presence or foliage damage (100%), with scouting occurring mainly at weekly intervals (57%). The majority of respondents used broad-spectrum insecticides (such as pyrethroids) for adult (89%) and larval control (47%). We estimated that a grower spends USD$1,637/ha/yr on insecticides and labor for monitoring and implementing S. frontalis management.

中文翻译：

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美国东部观赏植物中 Systena frontalis（鞘翅目：Chrysomelidae）的当前害虫状况和管理实践：在线调查

Systena frontalis (F.) (Coleoptera: Chrysomelidae) 是美国观赏植物苗圃中的一种重要害虫。有关苗圃、园艺中心和景观护理业务当前害虫状况和管理实践的信息对于制定有效的观赏作物研究和推广计划至关重要。研究团队于 2020 年开发和管理了一项在线调查，以收集有关害虫状况和当前害虫管理实践的数据。问卷包括三个重点领域：1）参与者（地点、行业类型或经营区域）；2) 有害生物状况指标（发生率、受影响作物和估计损失）；3) 常见的害虫管理做法。问卷通过电子邮件列表、新闻通讯和博客分发给利益相关者。收到了七十五份答复；82. 其中 6% 来自美国 19 个州和加拿大 1 个省的批发苗圃经营者。对于大多数受访者 (72%)，过去 10 年每年都会发生损害，并从 4 月持续到 10 月。大约 56% 的受访者报告说，超过五种寄主植物物种受到损害（最常见的是绣球花），约占设施中种植植物总数的 25%。S. frontalis 的存在主要通过目视检查树叶是否有成虫或树叶损坏（100%）来监测，主要每周进行一次侦察（57%）。大多数受访者使用广谱杀虫剂（如拟除虫菊酯）来控制成虫（89%）和控制幼虫（47%）。我们估计种植者每年花费 1,637 美元/公顷用于监测和实施 S.