Dipartimento di Scienze Agrarie e Forestali, Università degli Studi della Tuscia, Viterbo, Italy.
Pest Manag Sci. 2022 Jun;78(6):2443-2448. doi: 10.1002/ps.6876. Epub 2022 Apr 4.
The pine tortoise scale, Toumeyella parvicornis (Cockerell, 1897), is a damaging insect pest native to North America. Its accidental introduction into Europe, where it was first reported in central-southern Italy, is leading to severe infestations among stone pine trees, Pinus pinea L. causing severe infestations and generating a major risk to the health and safety of the citizens as well. This preliminary study aimed at finding an effective low-impact control strategy against Toumeyella parvicornis. We evaluated the effect of endotherapic abamectin injected into infested stone pines in the Parco Archeologico di Ostia Antica (Rome).
Results showed that endotherapic abamectin significantly reduced the pine tortoise adult female populations and had a persistence into plants of approximately 60 days. The first trace of abamectin on the plant's crown was detected 1 month after the treatment. Moreover, the survey highlighted a higher presence of the pest on the twigs of the plants than on needles.
These findings offer an important tool in fighting the damaging activity of this phytophagous, especially in an urban context where interventions with treatments are strictly regulated by national laws. Endotherapy, in fact, would reduce the dispersion of active ingredients by drift, an aspect that could represent a valid alternative to manage plants in public areas. Given the actual lack of scientific information about other control solutions, abamectin endotherapic treatments would be the more effective strategy currently applicable. © 2022 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
扁柏鳞小卷蛾（Toumeyella parvicornis）原产于北美洲，是一种具有破坏性的昆虫害虫。它意外引入欧洲，首次在意大利中南部报道，导致石松（Pinus pinea L.）严重受虫害，对市民的健康和安全构成重大威胁。本初步研究旨在寻找针对扁柏鳞小卷蛾的有效低影响控制策略。我们评估了在 Ostia Antica（罗马）考古公园的受感染石松中注射内吸性阿维菌素的效果。
结果表明，内吸性阿维菌素显著降低了扁柏鳞小卷蛾成虫的数量，并在植物中持续约 60 天。处理后 1 个月首次在植物冠层上检测到阿维菌素的痕迹。此外，调查突出表明，在植物的嫩枝上，害虫的存在率高于针叶。
这些发现为防治这种食叶害虫的破坏性活动提供了重要工具，特别是在城市环境中，国家法律严格规定了处理措施的干预。内疗法实际上可以减少因漂移而导致的活性成分的分散，这在管理公共区域的植物方面可能是一种有效的替代方法。鉴于目前缺乏关于其他控制解决方案的科学信息，内吸性阿维菌素处理将是目前可应用的最有效策略。 © 2022 作者。 Pest Management Science 由 John Wiley & Sons Ltd 代表化学工业协会出版。
