Major diseases of green grams

1
MAJOR DISEASES OF GREEN GRAM AND THEIR MANAGEMENT
BY
AMUGE ESTHER SARAH
2
MAJOR GREEN GRAM DISEASES

• Halo bight
• Cercospora leaf spot
• Mungbean Mosaic
• Powdery mildew

3
HALO BLIGHT
Symptoms
Management

• Rotate with non legumes like sorghum and millet
  (2 to 3 years)
• Plant Tolerant green gram varieties
• Remove diseased plants
• Deep ploughing to burry and destroy diseased
  plants

Leaf covered by dead spots of tan to orange
coloration with a yellow halo
4
CERCOSPORA LEAF SPOT
Symptoms
Management

• Dont plant in field with disease last year
• Remove and burn diseased plants
• Treat seed with Thiram or captan at 2.5g/kg of
  seed before sowing
• Spray Mancozeb and repeat at 10 to 15 days
  interval

Spots with pale brown/grayish center with reddish
brown margin
5
Mung bean yellow mosaic
Symptoms
Management

• Remove diseased plants
• Grow tolerant green gram varieties like NAROGRAM1
  and NAROGRAM2.
• Use yellow stick traps (10 to 12 traps per
  hectare to trap white flies
• If white flies are many, spray at 15 days
  interval with imidacloprid or neem oil

Yellow spots
Yellow leaf discoloration
6
POWDERY MILDEW
Symptoms
Management

• Use tolerant varieties for example NAROGRAM2
• Control weeds before sowing
• Spray Carbendazim (1g/L) or neem oil (20ml/L) at
  10 days interval

Whitish powdery patches on leaf
7
RECOMMENDATIONS ON DISEASE MANAGEMENT

• Focus on use of integrated disease management (
  combined use of a wide range of available disease
  management options)
• Inspect you garden for disease out break
  (starting 30 days after planting) continue weekly
  up to 55 days after planting.

8
STAGES WHEN DIFFERENT DISEASE SHOW MUCH
FROM FLOWERTING TO POD MATURITY
FLOWERING TO PODDING
9
FROM VEGETATIVE ALL THROUGH TO MATURITY
MORE FROM PODDING
10
THANK YOU