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苹果黑星病Venturia inaequalis(Cke)Wint又称疮痴病、主要为害叶片和果实,常引起早期落叶,直接造成减产,降低果品等级;并影响花芽分化和来年结果。此病广泛发生于世界各苹果产区,以冷凉多湿的苹果产区尤为严重。在国内分布尚不普遍,辽宁省仅局部发生,列为辽宁省的植物检疫对象。为了弄清苹果黑星病在辽宁省的发生与分布情况,防止此病的传播蔓延,我们于1979—1980年在省内29个县(区)的75个苹果园进行了初步调查。
Venturia inaequalis (Cke) Wint, also known as sore throat, mainly affects the leaves and fruits and often causes early deciduous leaves, which directly causes the decrease of fruit grades and the fruit grade. It also affects the flower bud differentiation and the coming year’s results. The disease occurs in a wide range of apple producing areas in the world, especially in the cold and wet apple producing areas. Distribution in China is not yet common, Liaoning Province, only partial occurrence, as the object of plant quarantine in Liaoning Province. In order to understand the occurrence and distribution of apple scab in Liaoning Province and prevent the spread of the disease, we conducted a preliminary investigation in 75 apple orchards in 29 counties (districts) in the province from 1979 to 1980.