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1975年7月,在印度鲁得菲那地区初次注意到番石榴果腐病.接着又在旁遮普其它几个地方的番石榴品种中(即:Allahabad Safeda、Apple Guara、Ked Fleshed、PinkFleshed四个品种)观察到这种病害.不同品种的发病率在5—20%之间.这种病害于7月季风期开始时发生,以后逐渐严重.在番石榴成熟与未成熟的果实表面出现了由寄生果腐病菌的菌丝体,孢囊梗和孢子囊形成的带白色的生长物.后来从旁遮普各地收集的果实
The guava fruit rot was first noticed in the Rudefina area of India in July 1975. It was followed by guava varieties in several other parts of Punjab (ie Allahabad Safeda, Apple Guara, Ked Fleshed, PinkFleshed ) The incidence of this disease was observed. The incidence of different species was between 5 and 20%, and this disease occurred at the beginning of the July monsoon period and gradually worsened thereafter. On the surface of ripe and immature fruits of guava, The mycelium, cyst, and sporangium of the fruit curl germs are white-grown and are subsequently collected from all parts of Punjab