Investigation, Identification And Integrated Control Technique Of Tobacco Wild Fire Disease (Pseudomonas Syringae Pv. Tabaci) In Shandong Province

Wildfire disease of tobacco is one of the important bacterial diseases on tobacco. The main product cigarettes areas happened commonly with morbidity serious in the world,such as USA and Germany,even is fatal.Every host product cigarette area frequently happens in the homeland since twenty centuries eighties medium term,part cigarette area presents to phenomenon break out,some province area sarea happened heavy such as Heilongjiang,Liaoning,Yunnan and so on..The tobacco wild fire disease frequently happens in recent years in Shandong host product cigarette area,part cigarette area assumes the outburst phenomenon,what has becoming one of affect factors in tobacco leaf dependable crop high grade.For definituding occurrence,distribution and damage condition,making disease clear,identify clear and definite their physiology biochemistry,Biology characteristic,rule happened,method studying effective control technology research,author carried out the studies of occurrence,distribution and damage,morbidity rule and their integrated control technology producing the cigarette area tobacco wild fire disease in 2004 to 2007 in Shandong host.The result having gained as follows:1.On inquiry clear and definite the range of Shandong Province tobacco wild fire disease happened already have reached 18 county(city),as follows LinYi City,Wei Fang City,RiZhao,ZiBo City,Qingdao and so on 5 main product cigarette area.such as YiShui county,YiNan county,LinMu,Fei county,PingYi county,Meng Yin county,ZhuCheng City,AnQiu,LinQu county,ChangLe county,WeiCheng Qu,Dong Gang District,Ju county,JiaoNan City,YiYuan county,LinZi,BoShan district and JiaoNan City and so on county(city) area.2.The appraisal has made clear that Shandong Province tobacco wild fire germs is Pseudomonas svringae pv.tabaci[Wolf & Foster(1917) Youngs,Dye & Wilkie(1978)].3.The indoor inoculation determining clear tobacco wild fire germs having invaded 7 kinds plant such as tobacco(NC82),heart leaf cigarette,capsicum,tomato,kidney bean,tendrilled vine lump trailing plants and black nightshade.4.Make clear that the Shandong cigarette area wild fire disease has twice the obvious morbidity peak every year on inquiry.In happening for the first time on June,the last ten-day period of a month,second time happen in the last ten-day period of a month in July till the first ten-day period of a month in August.5.The indoor inoculation determining clear disease resistance of 45 tobacco cultivars on P.s.pv.tabaci were identified,the result indicated that each cultivar was different form others.Burley 21 and G80,whose disease index were 12.5,were the two most resistant of all cultivars;Resistant cultivars including Burley 37 and Xiao huangjin 1025 et al took 31.1%of total tested cultivars;Susceptible cultivars,such as K326, Honghuadajinyuan and so on,took 35.6%;Highly suscepible cultivars including Yunyan 85,G28 et al,whose disease index were more than 70%,and they took 28.9%of all tested cultivars.6.The interior medicament admeasurement filtration,combination matches for again,field state tests,choosing fine copper of control technology effect to wild fire disease is medicament combination,noblenessthe copper + the newly plant mildew element in the field.7.Study combination "cultivate integrated control technology of integration of disease-resistant breed with medicament prevention and cure",the integrated control having carried out the field multiple;spot respectively applies to county disease area such as Yi Shui county,Yi Nan county.Two counties guard against an effect averagely in Yi Shui county,Yi Nan county amounting to 80.5%and 78.4%respectively,have an effect to hay controlled result on wild fire disease damage.