湿地松、火炬松原产美国南部,是优良的造林树种,于四十年代末期开始引入湖北。过去,湿地松、火炬松种源主要靠从国外进口。近年来,我省襄阳、荆州、武昌九峰等地湿地松、火炬松母树林已开始结实,有的已进入大量结实阶段,省内种源供应趋向好转。但随着湿地松、火炬松母树林结实量的逐渐增多,球果害虫的发生也日趋严重,以致一些母树林因 Pinus elliottii and Pinus taeda native to the southern United States are excellent afforestation species that were introduced to Hubei in the late 1940s. In the past, Pinus elliottii and Pinus taedana were mainly imported from abroad. In recent years, Xiangyang, Jingzhou, Wuchang Jiufeng and other places Pinus elliottii and Pinus taeda have started to grow strong, and some have entered a large number of strong stage, the province’s supply of provenances tend to improve. However, with the growing quantity of Pinus elliottii and Pinus taeda forest, the occurrence of coniferous pests became more and more serious,