在番茄田里若发现植株萎蔫的现象,是比较危险的,特别是在开花坐果期。番茄植株在外表上表现为植株萎蔫,有可能是青枯病或枯萎病,这两种病害均为土传病害,一旦发生,不及时防治有可能造成毁园,且目前没有很好的防治药剂,故菜农谈“枯”色变。但番茄植株外表上表现为叶片萎蔫,也有可能是黄萎病,或疫霉根腐病,或生理性萎蔫。需要仔细鉴别,肉眼难以判别的话,有条件的可借助显微镜对病原进行镜检。一、番茄青枯病识别要点:发病初期,病株白天萎蔫,傍晚复原,反复多日后,田间病株增多,萎蔫逐渐加剧;如气温较低,连阴雨或土壤 If you find the phenomenon of plant wilting in the tomato field is more dangerous, especially in the flowering and fruit setting. Tomato plants appear on the surface of the plant wilting, there may be bacterial wilt or blight, both diseases are soil-borne diseases, in the event of failure to prevent and control may cause destruction of the park, and there is no good control agent Therefore, vegetable farmers talk “dry ” color change. However, the appearance of tomato plants showed leaf wilting, may also be Verticillium wilt, or Phytophthora root rot, or physiological wilting. Need to be carefully identified, the naked eye is difficult to distinguish, the conditional microscope microscopic examination of the pathogen. First, identification of tomato bacterial wilt Key points: early onset, diseased plants wilting during the day and evening, after repeated days, the number of field strains increased, wilting gradually increased; such as the temperature is low, even the rainy or soil