جستجوی مقالات مرتبط با کلیدواژه "plant disease" در نشریات گروه "محیط زیست"

The country's need to the cellulosic resources is constantly increasing, and currently according to a very small area of northern forests and restrictions on timber harvesting, meeting the needs through domestic resources is not possible. Therefore, wood imports are inevitable to protect the country's forests as well as meeting the domestic requirements. On the other hand, importation is always subjected to great risk of quarantine pests and diseases. These destructive agents with infected woods are transferred from one country to another and, in the event of the establishment, can cause heavy damage to the forests in the country of destination. Currently, more than half of the country's need to wood is supplied from Russia. Despite health certificate, the timber cargoes have lots of quarantine pests and pathogens. With the continuing entry of this group of pests and diseases, the possibility of their establishment in northern forests is not unexpected. Therefore, study and introduction of these harmful agents, control methods, and also risk assessment of their establishment can play an important role in providing proper solutions for the low risk importation of wood.