摘要
对吉林省和龙市红景天基地苗圃发生的立枯病症状及病原菌形态进行了观察 ,并进行了病原菌分离及致病性测定。结果表明 :红景天立枯病病原为立枯丝核菌 (RhizoctoniasolaniKuhn)。红景天苗栽培密度和田间除草状况是影响红景天立枯病发生程度的最主要因素。多菌灵、菌核净、多菌灵 +退菌特混剂以及 40 2抗菌剂等药剂对红景天立枯病的防效较高 ,是防治红景天立枯病的首选药剂。
In view of the prevalence of damping-off in Rhodiola sachalinensis Base Nursery in Helong city of Jilin province, its symptoms and the shapes of its pathogens were observed. The separation of its pathogens and the determination of its pathogenicity were also conducted. The results showed that the pathogenic microorganism was Rhizoctonia solani Kuhn. Planting density and the situation of weed clearing in field played the major role in the prevalence of Rhodiola sachalinensis damping-off. Carbendazim, dumethachlon, mixture of carbendazim & tuzet, and antibacterial 402 are the best medicaments to prevent and cure it.
出处
《吉林农业大学学报》
CAS
CSCD
北大核心
2002年第2期112-114,共3页
Journal of Jilin Agricultural University
基金
延边州科委重点资助项目 ( 2 0 0 0 0 5 )
关键词
红景天
立枯病
病原鉴定
药剂防治
流行因素
吉林
Rhodiola sachalinensis damping-off
pathogen
factors of prevalence
medicamental prevention and cure
Helong city of Jilin province
