Symptoms

• The disease starts as raised chlorotic to brown spots on the leaf and stem surface.
• As the plant matures, the spore masses become brown to black.
• The symptoms are seen mostly on the underside of the leaves.
• Plants with severe rust infection appear stunted, chlorotic, or otherwise discolored.
• Cool temperature and high relative humidity favors the disease development.

Management

• Remove and destroy the alternate hosts - Oxalis spp.

Chemical Control

Sl.No	Generic Name	Trade Name	Color code	Dosage/litre	Knapsack Sprayer (Capacity 10L)	Dosage/acre (200 L)	Dosage/hectare (500 L)
1	Mancozeb 75 WP	Devidayal M-45, Dhanuka M-45 Dithane , Dithane M-45 , Hilthane Hindustan M-45 , Indofil M-45,Izeb M-45 , Manzate , Luzen 45 ,Macoban M-45, Mancosaan , Mancosaan M-45 Manzeb 75 WP , Maneb Manzane M-Guard , Savour M-45 , Tata M-45 Eurofil -NT , Uthane M-45 ,Veera Zinthane	Green	3 g/ litre of water	30 g	0.6 kg	1.5 kg
2	Wettable sulphur 80 WP	Cosavet , Dhanusul, Koshavet 80 WDG, Mainsul , MicrosulWDG, Nanthiin DF Sulfexgol,Sulfil , Sulfoguard,Villo	Green	2 g/1 litre of water	20 g	0.4 kg	1 kg

Extremely Toxic

Highly Toxic

Moderately Toxic

Slightly Toxic