Downey Mildew:

Causal Organism:  Peronospora viciae (formerly P. pisi),

• It is caused by a soil borne fungal pathogen.
• The pathogen does not transmitted by seed internally or externally.

Symptoms:

• A grayish white moldy growth appears on the lower leaf surface, and a yellowish area appears on the opposite side of the leaf.
• Infected leaves can turn yellow and die if weather is cool and damp.
• Stems may be distorted and stunted.
• Brown blotches appear on pods, and mold may grow inside pods.

 Control:

• Grow resistant or tolerant cultivars.
• Follow 2-3 years of crop rotation.
• Burn or bale infested pea straw after harvest

Spray of Mancozeb @ 0.25% at seven days interval gives good control.