温室非洲菊组培苗灰霉病发生规律与防治技术

Incidence and Control of Gerbera in vitro Plantlet of Botrytis cinerea in Greenhouse

通过研究温室非洲菊组培苗灰霉病的症状特点和温湿度、光照、通风状况、栽植密度、施肥、虫害对该病的影响,提出相应的防治措施。结果表明:灰霉病可侵害移栽后的非洲菊组培苗的叶片、根颈和花,引起叶片、花出现坏死病斑或枯死,根颈腐烂等症状。温度低、湿度高、光照强度小于2 000 lx、栽植密度过大、通气不良、室内不清洁、偏施氮肥、虫害较多均有利于发病。防治该病的方法是以农业防治为基础,如室内清洁卫生,穴盘消毒,合理浇水,定时通风,合理施肥,控制光照,治虫防病等;化学防治为辅;提倡使用生物防治手段。该研究为温室非洲菊组培苗移栽后灰霉病的防治提供了依据。

The corresponding control measures was put forward according to study on gerbera in vitro plantlet of B. cinerea in greenhouse of symptoms, and the impact of temperature and humidity, light, ventilation conditions, planting density, fertilization, pest to the disease. The results showed that B. cinerea could be against the transplanted tissue culture of gerbera leaves, root neCK, and flowers, causing leaves, flowers, which causing necrotic lesion, or root rot symptorrus. low temperature, high humidity, light intensity less than 2 000 lx, planting density too large, poor ventilation, indoor dirty, side of nitrogenous fertilizers, insect pests were more conducive to disease. Prevention and treatment of the disease was based on agriculture, such as indoor cleaning, plug disinfection, reasonable watering, regular ventilation, reasonable fertilization, control of lighting, pest control and so on,chemical control supplement;promoting the use of biological control methods. The research provided a basis for prevention and treatment of Botrytis cinerea gerbera in greenhouse after transplanted tissue culture.