- The disease is found mainly on the older leaves and stems of plants.
- Increased humidity favours the disease and infection is enhanced during periods of heavy dew.
- The disease symptoms appear as small, round, whitish spots on leaves and sometimes on stems.
- The spots enlarge and coalesce rapidly and a white mass resembling talcum powder becomes evident on the upper surface of the older leaves or other plant parts.
- Young leaves are almost immune.
- Heavily infected leaves become yellow then become dry and brown.
- Extensive premature defoliation of the older leaves takes place.
Spray wettable sulphur 80% WP 50gm/15lit of water at fortnight interval.
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