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桃菌核病(Sclerotinia sclerotiorum)国内各地未见报道。1979年5月,作者在浦城县首次发现桃幼果被桃菌核病为害。现将试验结果报道如下。一、菌核发生时期及形态病菌的菌核阶段,发生于幼果被害的僵果表面。菌核发生始期于4月上、中旬;盛期于4月下旬至5月;末期于6月上、中旬。菌核形态:3月下旬至5月,被害桃幼果腐烂后为浅褐色或苍白色僵果。久雨果园空气潮湿时,挂树上的僵果表面布满白色菌丝层,逐渐增厚;菌丝交结成白色或灰白色菌丝团,终成圆形、不规则形或块状,坚硬,状
Sclerotinia sclerotiorum has not been reported in China. May 1979, the author found in Pucheng County peach young fruit peach scab for the first time damage. The test results are reported below. First, the stage of sclerotia and morphological bacteria sclerotioric stage occurred in the young fruit killed the surface of the fruit. The onset of sclerotia in April, mid; peak in late April to May; the end of June on the middle. Sclerotinia morphology: From late March to May, peach young peach rot or light brown or pale fruit. Long rain Orchard air is damp, hanging trees on the surface of the stiff fruit covered with white mycelium, gradually thickening; mycelium cross into white or gray mycelium, and finally into a round, irregular or massive, hard ,shape