1. Soft rot – Pestalotiopsis mangiferae
2. Fruit rots – P. palmivora, Petalotiopsis versicolor, P. sapotae
1. Soft Rot: Pestalotiopsis mangiferae
Symptoms:
- The disease appears as water-soaked spots covering the entire fruit within 3 to 4 days.
- Rotted fruits become soft and dark brown and later numerous acervuli are seen in rotted zones.
- The fungal colonies are yellowish white.
- Mycelium is branched & septate.
- Acervuli are black, globose to sub-globose
- Conidiophores are short and simple
- Conidia are fusiform, 4-septata.
- Middle three cells are dark brown.
- End cells are hyaline and pointed.
- Apical cell is with 1 to 3 hyaline setulae.
2. Fruit Rots
Phytophthora palmivora, Pestalotiopsis versicolor, P. glandicola, P. sapotae and Botrydiplodia theobromae are the causal agents of fruit rots in sapota.
- Diseased fruits exhibited water-soaked lesions which become brown within 2 to 3 days.
- Subsequently the whole fruit is covered with tufts of mycelium.
Management
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