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自1972年发现类立克次氏体病原以来,国内外先后报导了约三十种类立克次氏体引起的植物病害,研究正在深入。有关该病害的防治也取得不少进展。(一)国外发生的类立克次氏体病害许多植物类立克次氏体病害都造成重大的经济损失,其中葡萄树皮尔氏病(Grape-vine Pierce’s disease)尤为突出。葡萄树皮尔氏病在美国南方普遍存在,使许多地区不能种植葡萄。被感染的葡萄树有的可以生活几年,重者几个月内即死亡。不同品种、植株的老嫩,温度的高低,其感病程度不同。葡萄树首先表现为突然干燥,叶片边缘或大部焦灼,焦灼区域逐渐扩大到
Since the discovery of Rickettsial-like pathogens in 1972, about thirty plant diseases caused by Rickettsia have been reported at home and abroad. The research is under way. Much progress has also been made in the prevention and treatment of this disease. (I) Rhizopus-like diseases occurring abroad Many plant-type rickettsial diseases cause significant economic losses, with Grape-vine Pierce’s disease particularly prominent. Grapevine Peel’s disease is prevalent in the southern United States, preventing grapes from being planted in many areas. Some of the infected vines can live for a few years and die within a few months. Different varieties, old plants tender, the level of temperature, the degree of their different. The vines first showed a sudden dryness, with the edge of the leaves or most of the scorching, and the scorching area gradually widened to