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2013—2015年果实成熟采收期,先后从江西赣州18个县(市、区)115个乡镇随机采集883份脐橙果实样品进行病原菌的分离和鉴定。结果表明,发现有柑桔青霉病菌Penicillium italicum、柑桔绿霉病菌P.digitatum、柑桔扩展青霉病菌P.expansum、柑桔炭疽病菌Colletotrichum gloeosporioides、柑桔干腐病菌Fusarium moniliforme、柑桔疫霉病菌Phytophthora citrophthora、柑桔黑腐病菌Alternaria citri、柑桔黑斑病菌Phoma citricarpa等8种病原真菌,以及柑桔溃疡病菌Xanthomonas axonopodis pv.citri、柑桔黄龙病菌亚洲种Candidatus Liberibacter asiaticus等2种病原细菌。其中,柑桔青霉病菌+柑桔绿霉病菌的检出率分别为40.7%,柑桔炭疽病菌的检出率为23.2%,柑桔溃疡病菌的检出率分别为7.0%,其余病原菌的检出率在0.1%~1.6%之间。赣南脐橙贮藏期,柑桔青霉病与绿霉病是重点防治对象,且要加强柑桔炭疽病的防治。
From 2013 to 2015, 883 navel orange fruit samples were randomly collected from 115 villages and towns in 18 counties (cities and districts) in Ganzhou of Jiangxi Province for the isolation and identification of pathogens. The results showed that there were Penicillium italicum, P.digitatum, P.expansum, Colletotrichum gloeosporioides, Fusarium moniliforme, 8 pathogenic fungi such as Phytophthora citrophthora, Alternaria citri and Phoma citricarpa, Candidaatus Liberibacter asiaticus and other pathogenic fungi of Citrus canker, Xanthomonas axonopodis pv.citri and Candidatus Liberibacter asiaticus bacterial. Among them, the detection rates of Penicillium citrinum and Penicillium citrinum were 40.7%, 35.2% and 35.2%, respectively. The detection rates of citrus canker were 7.0% and 7.0%, respectively The detection rate is between 0.1% ~ 1.6%. Gannan navel orange storage period, citrus blue mold and green mold are the key prevention and control targets, and to strengthen citrus anthracnose prevention and treatment.