Amaranthus (Amaranthus spp.)
White rust(Albugo bliti)
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Symptoms
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- The initial symptoms are spots on the leaf and stem surface.
- On the under surface of leaves creamy white blisters or raised pustules are noticed.
- The severely infested leaves dry up and defoliate.
- Cool temperature and high relative humidity favor disease development.
Management
- Avoid splash irrigation.
- Grow red and green varieties alternatively in the same field.
- Spray Pseudomonas fluorescens (20 gram/litre with 20 gram cow dung slurry supernatant) after allowing settling the mud.
- Prophylatic spray of Bordeaux mixture 1 %.
Chemical Control
| Sl.No | Generic Name | Trade Name | Color code | Dosage/litre | Recommendation | Remarks | |
|---|---|---|---|---|---|---|---|
| Dosage/acre (200 L) | Dosage/hectare (500 L) | ||||||
| 1 | Copper hydroxide 77 WP | HiDice, Kocide 101 | Blue | 1 g/ litre of water | 200 g | 500 g | - |
| 2 | Copper oxychloride 50 WP | Bensaan, Blitox, Blue copper, Bluetrox, Copter, Cupramar, Cuprina, Dhanucop, Fytolan, Fytox, Fytran, Fytolan, Hilcopper, Killex copper, Maincop, Dhanucop, Star cop, Tagcop, Trucop | Blue | 2 g/ litre of water | 400 g | 800 g | - |
Extremely Toxic
Highly Toxic
Moderately Toxic
