香椿是一种速生优质用材树种,深为广大群众所喜爱。但是,近年来各地香椿陆续发生香椿枯萎病,引起全株死亡,成为发展速生用材林的老大难问题之一。我所广大革命职工,遵照毛主席“绿化祖国”的伟大教导,于1970年10月对我所6年生的香椿病株进行了防治试 Toon is a fast-growing high-quality timber species, deeply loved by the masses. However, in recent years, Toona sinensis everywhere has successively withered the blight of Toona sinensis and caused death of whole plant, which has become one of the most difficult problems in the development of fast-growing timber. Our vast number of revolutionary workers, in accordance with the great teaching of Chairman Mao’s “greening the motherland,” conducted a pilot prevention and cure test on our 6-year-old Toona sinensis strain in October 1970