Through investigation and study of the leaf blight disease of Lycium in 5 different areas in Mongolia, the pathogen
was identified in-house as Alternaria tenuis Nees, biological characteristics of the pathogens, the bioassay of toxins from A. tenuis Nees,
the pathogenic mechanism of toxin and the toxicity determination of the fungicide were studied. The results showed that A. tenuis Nees could
grow in 5-35℃ and the optimum grown temperature was 25℃. The range of pH value ...