钢梁县复兴公社龙洞大队第二生产队,在1968年10月,从南川县引进了苹果幼苗2262株,主要品种是金帅,授粉品种系元帅、红玉、国光等。这两千多株果苗定植在85亩的山坡地上,今年大部份都已试花结果。我们在果树管理过程中,发现了一种苹果白绢病,并于1973年3月中旬对全园果树作了扒土晾兜的全面普查,病树率达22％,其中根颈烂透一半而深达木质部的占7.8％。 In October 1968, 2262 apple seedlings were introduced from Nanchuan County. The main varieties are Jinshuai, the majors of the pollination varieties, mahogany, Guoguang and so on. These two thousand seedlings planted in 85 acres of hillsides, most of this year have been tested flowers results. In the process of fruit tree management, we found an apple sclerotium, and in mid-March 1973 on the whole garden of fruit trees made a comprehensive survey of grilled soil pocket, tree disease rate of 22%, of which the root neck through half While deep wood accounted for 7.8%.