【摘要】 1983—1988年间从贵州省5个县市的15个菇房中采集到大量的平菇枯萎标本,选取有代表性的枯萎标样共计150个,从中分离到3种镰刀菌:半裸镰刀菌(Fusarium semitectum)禾谷镰刀菌(F.graminearum)和串珠镰刀菌(F.moniliform)。茹房调查和人工接种表明,半裸镰刀菌是引起平菇枯萎病的主要优势病原,其出现频率为88%禾谷镰刀菌和串珠镰刀菌无论在出现频率(分别为6.7%和5。3%)还是致病性方面均低于前者。半菇枯萎病是迄今尚未见报道的平菇新病害。本文报道了该病的症状,病原特性,部分生物学特性和对该病的防治结果,试验表明,40%福美双1000倍液能有效地控制该病,对平茹无害。更多还原

【Abstract】 During 1983-1988,many wilt samples of Pleurotus ostreatus were collectedfrom five counties and cities in Guizhou province,three species of Fusariumwere isolated from 150 wilted samples:i.e.Fusarium semitectum,F.monili-form and F.graminearum. Field observations and artifical inoculations showed that Pleurotus wiltwas caused principally by Fusarium semitectum and its frequency of occurr-ence was 88%.F.graminearum and F.moniliform showed less pathogenic andlower freqency of occurrence(6.7% and 5.3% respectively) than F.semite-ctum.This is a new disease of Pleurotus and has never been reported before.In this paper,the symptoms,morphology and some biological characters ofthe pathogens and its control were reported.40%Thiram X 1000 can controleffectively this disease and no damage to both vegetive hyphae and sporoc-arps of Pleurotus osteratus.更多还原