Raghuveer SinghIndian Council of Agricultural Research (ICAR), New Delhi, IndiaEmail: singhraghuver@gmail.com
Host: Areca catechu L. (Betel nut or Areca nut palm)Disease name: Fruit rot, koleroga, or mahali Pathogen name: Phytophthora arecae (L. C. Coleman) Pethybr.
The first symptoms are water-soaked lesions on the nut surface near the calyx. The patches enlarge, and nuts darken and are shed in large numbers. A fallen nut is soon covered by a whitish mycelial mass.
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