谷象(Sitophilus granarius linne)是我国对外植物检疫对象。此虫对低温抵抗力较强,对高温抵抗力较弱,适生在温暖或寒冷地区,分布于印度、欧洲大部分地区,美国北部,澳大利亚等地,我国仅新疆等局部地区发生。成虫、幼虫都能为害各种谷类种子、豆类、油料、薯类、干果等,成虫还为害谷类加工品如面粉。在我国口岸检疫中,特别是旅客携带的 Siberian elephant (Sitophilus granarius linne) is the object of foreign plant quarantine in our country. This worm has strong resistance to low temperature and weak resistance to high temperature. It is suitable for warm or cold areas in India, most parts of Europe, the northern part of the United States, Australia and other parts of China, while only Xinjiang and other parts of China. Adults and larvae can damage a variety of cereal seeds, beans, oil, potato, dried fruit, etc. Adults also harm cereal processed products such as flour. Quarantine in our ports, especially passengers carry