Cucumber (Cucumis sativus)
Fruit rot or cottony leak (Phythium aphanidermatum)
Symptoms
- Fruits in intimate contact with soil is affected
- The fungus attacks through wounds on the fruits.
- Luxuriant cottony white growth of the fungus can be seen on the infected fruits.
- Skin of the fruit shows soft, dark green, water soaked lesions
- Interior tissue become watery and soft and decaying matter emits a bad odour
Management
- Apply mulch on the soil to avoid direct contact of fruits with soil.
- Remove and destroy all rotted fruits.
- Prophylatic soil application of Pseudomonas fluorescens or Trichoderma spp. (20 g/litre of water) will reduce the disease incidence.
Chemical Control
| Sl.No | Generic Name | Trade Name | Color code | Dosage/litre | Knapsack Sprayer (Capacity 10L) | Recommendation | Remarks | |
|---|---|---|---|---|---|---|---|---|
| Dosage/acre (200 L) | Dosage/hectare (500 L) | |||||||
| 1 | Potassium phosphonate 40 SC | Akomin | Green | 4 ml | 40 ml | 800 ml | 2000 ml | |
| 2 | Mancozeb 75 WP | Devidayal M-45, Dhanuka M 45, Dhanuka M-45, Dithane, Dithane M-45, Hilthane, Hindustan M 45, Indofil M 45, Izeb M-45 Manzate, Luzen-45, Macoban, Macoban M-45, Mancosaan, Mancosaan M-45, Maneb Manzane, M-Guard, Savour M 45, Tata M-45 Eurofil-NT, Uthane M-45, Veera, Zinthane | Green | 3 g | 30 g | 600 g | 1500 g | |
Extremely Toxic
Highly Toxic
Moderately Toxic
