2016年6月1日讯:在湖北省襄阳市贾洲楸树苗圃繁育基地,襄阳市林科所所长赵天宇和同事们这几天正忙着为3万余株楸树嫁接苗施药防虫。赵天宇介绍说,楸树直接采种难以繁殖,只能嫁接。这些嫁接苗将用于示范造林。楸树是我国特有的优质用材树种,其材质坚韧、致密、细腻、软硬适中,而且不易虫蛀,极耐腐朽和水湿;其外形高大 June 1, 2016 News: Zhao Tianyu, director of the Forestry Branch of Xiangyang City in Xiangyang City, Hubei Province, and his colleagues are busy grafting seedlings for more than 30000 Catalpa bungei trees these days Pest control. Zhao Tianyu said Catalpa tree is difficult to breed directly planted, only grafting. These grafted seedlings will be used for demonstration reforestation. Catalpa bungei is a unique high-quality timber species in China, its material tough, dense, delicate, soft and hard moderate, but not easy to moth-eaten, very resistant to decay and water wet;