- The control effect of Wengmeiqing(validamycin) and its mixture on rice sheath blight disease was tested in field.
- Tomato late blight disease is a worldwide fatal disease for vegetable production,often break out, and cause great crop loss.
- The flowers and trees rust, downy mildew, black spot disease, leaf blight, branch blight disease, powdery mildew etc. were significantly controlled by this fungicide.
- Tests in both lab and fields indicated that metalaxyl resistant isolates appeared and the effectiveness of metalaxyl on late blight disease were weakened.
- Accumulated temperature were many before the winter and the sowing seeds-jointing stage,while the temperature was low around the jointing,which led the banded sclerotial blight disease index to high.
- The late blight disease of potato in Vietnam