English: Cerambycidae in places of mass reproduction significantly affect tree plantations. A negative impact and irreparable damage are caused, for example, by the larvae of the genus Cerambyx. For example, the development cycle of a longhorn beetle (Cerambyx cerdo) in wood is 2-4 years. The larvae first bore holes in the bark, where they grow for the first year and remain for the winter (they reach 65-85 mm in length and 13-18 mm in width). In the second year, they move to the sapwood and the surface layer of wood and winter again. Only in the third year, having reached a length of 70-90 mm, the larva gnaws a deep and long (up to 1 m) passage in the wood and builds a cradle for the pupa at the end of it. During this period, the larva reaches a length of almost 100 mm and a width of 18-20 mm. The pupal stage lasts 5-6 weeks. The imago hibernates in the cradle. During this time, the larva gnaws through long passages in the wood, which often leads to a significant deterioration of the tree's condition, and in case of significant damage by the larvae, to its death. Currently, the situation with old oaks is critical, particularly in Europe. So, in Timisoara (Romania), where this photo was taken, in the ancient park, almost all the oaks (200-300 years old) are affected by the longhorn beetles. And the only thing that is done to reduce the infection of trees is to cut several hundred-year-old oaks under the root. Solving the problem requires the cooperation of zoologists, botanists and local authorities.

English: Cerambycidae in places of mass reproduction significantly affect tree plantations. A negative impact and irreparable damage are caused, for example, by the larvae of the genus Cerambyx. For example, the development cycle of a longhorn beetle (Cerambyx cerdo) in wood is 2-4 years. The larvae first bore holes in the bark, where they grow for the first year and remain for the winter (they reach 65-85 mm in length and 13-18 mm in width). In the second year, they move to the sapwood and the surface layer of wood and winter again. Only in the third year, having reached a length of 70-90 mm, the larva gnaws a deep and long (up to 1 m) passage in the wood and builds a cradle for the pupa at the end of it. During this period, the larva reaches a length of almost 100 mm and a width of 18-20 mm. The pupal stage lasts 5-6 weeks. The imago hibernates in the cradle. During this time, the larva gnaws through long passages in the wood, which often leads to a significant deterioration of the tree's condition, and in case of significant damage by the larvae, to its death. Currently, the situation with old oaks is critical, particularly in Europe. So, in Timisoara (Romania), where this photo was taken, in the ancient park, almost all the oaks (200-300 years old) are affected by the longhorn beetles. And the only thing that is done to reduce the infection of trees is to cut several hundred-year-old oaks under the root. Solving the problem requires the cooperation of zoologists, botanists and local authorities.