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央广网天津9月16日消息(记者贾立梁 通讯员张立宾)近日,天津检验检疫局工作人员从一批进口自美国的白松原木中截获两种检疫性有害生物——辐射松幽天牛和间大小蠹。
该批原木来自美国加利福尼亚州,官方植物检疫证书声明不带树皮,装载于6个40尺集装箱中,共计194.157立方米。检验检疫人员在对货物实施现场查验时,发现原木树干和箱体壁上附着数头活体天牛成虫;残留树皮上分布较多的虫孔和碎屑,揭开后有数十头小蠹成虫。后经该局动植物与食品检测中心鉴定,确认为辐射松幽天牛和间大小蠹,均为我国《进境植物检疫性有害生物名录》中列明的检疫性有害生物。
辐射松幽天牛隶属幽天牛亚科梗天牛属,主要分布于南部欧洲国家、澳大利亚、东南亚和非洲,主要危害松属中的多数种,如海地松、辐射松、湿地松、地中海松的生长,降低成林、成才比率。此次在美国白松原木中截获该种有害生物较为罕见,或可猜测辐射松幽天牛在美国已有分布,且可随木材国际间贸易进行疫情传播。
间大小蠹隶属于海小蠹亚科大小蠹属,主要危害墨西哥白松、灰叶山松、光叶松、山松、西黄松、拟北美乔松和细叶松。通常,间大小蠹会干扰森林的生态系统,影响深林结构和立木组成,周期性的爆发可能造成树木的大面积树木死亡,其危害严重性位居北美针叶树蛀干害虫的首位。
目前,辐射松幽天牛和间大小蠹在我国尚无分布,一旦传入爆发,极有可能引发林木病虫害疫情,对我国农林业生产和生态环境造成严重破坏,经济损失不可估量。为防止疫情扩散,天津检验检疫局已按照相关规定对整批货物实施了检疫除害处理。
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