期刊论文

中文

中国农学通报

1000-6850

2014

30

19

284-288

国家支撑计划课题“南方丘陵山地农区农业面源污染防控技术集成与示范”（2012BAD15B04-1）；

本校为第一机构

2012年8月湖南新田县蔬菜基地发生茄子果实腐烂病,损失严重。从感病茄果上分离到一种真菌,镜检表明为茄褐纹拟茎点霉,此菌rDNA-ITS序列亦与茄褐纹拟茎点霉高度同源。因当地反映百菌清、多菌灵、代森锰锌等药剂均无明显效果,故尝试了室内实验以筛选出有效防治该病的药剂。采用菌丝生长速率法,用11种杀菌剂做了室内毒力测定。咪鲜胺对茄褐纹病菌的抑制效果最好,EC50值为0.021 mg/L;其次是甲基硫菌灵和苯醚甲环唑,EC50值是0.252和0.434 mg/L;百菌清与醚菌酯的抑制效果最差,EC50值分别为44.400和54.470 mg/L。建议在病区选用咪鲜胺防治茄褐纹病。

Eggplant fruit rot disease in Xintian County vegetable base caused severe loss in August 2012.Fungus isolated from diseased eggplant proved to be Phomopsis vexans under microscopic examination.Analyses of rDNA-ITS sequences of the isolates support the result of microscopy. In vitro fungicide screeningwas carried out because chlorothalonil, carbendazim, mancozeb can＇t control fruit rot in eggplant field.Toxicities of 11 selected fungicides on P. vexans were evaluated using mycelium growth rate method. Thetoxicity of prochloraz was the strongest...