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来自加拿大的叶板的商品风险评估
EFSA journal. European Food Safety Authority
|July 31, 2024
概括
这项研究评估了加拿大花板中的害虫自由度,发现生产过程对隔离害虫如Phytophthora ramorum和Davidsoniella virescens非常有效. 较厚的板表显示,由于干燥温度降低,害虫自由度略低.
科学领域:
- 植物卫生 植物卫生
- 风险评估 风险评估
- 植物卫生措施 植物卫生措施
背景情况:
- 欧盟委员会要求对来自加拿大的叶板进行风险评估.
- 专注于免受欧盟检疫害虫的侵害,特别是大卫菌和非欧盟分离物 (Phytophthora ramorum).
- 评估考虑了高达0.7毫米和6毫米厚度的面板板.
研究的目的:
- 评估加拿大树板中无害虫的可能性.
- 评估特定制造工艺对关键检疫害虫的有效性.
- 为了确定不同厚度的壁 Veneer 的害虫自由度.
主要方法:
- 使用系统方法进行风险评估,用于面膜生产.
- 评估单个工艺阶段:日志热处理,贴面切割和高温干燥.
- 专家知识诱导 (EKE) 用于量化害虫免费概率.
主要成果:
- 系统方法被认为是对昆虫和Xylella fastidiosa非常有效的.
- 植物 (Phytophthora ramorum) 不太可能在薄的高温干燥中存活;在更厚的中可能存活.
- 专家知识诱导表明,害虫自由率很高 (例如,P. ramorum在6毫米片中>99.8%,D. virescens在0.7毫米片中>99.8%).
结论:
- 制造过程确保了非常高的害虫免费程度的树板.
- 较厚的板 (6毫米) 与较薄的板 (0.7毫米) 相比,具有略低的害虫自由度.
- 树木腐烂真菌代表了害虫存在的最大可能性,尽管仍然处于非常低的水平.
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