Monday, 21 January 2013

Disease Management in Guar seed ( guar gum ) Crop

Guar is tolerant to many disease and pests. The common diseases of guar are wilt, bacterial blight, powdery mildew, and anthracnose. 

Wilt

This disease is caused by Fusarium monolifonne. The pathogen is soil- borne and, therefore, its damage is of localized nature. It causes infection to the base of plants including roots and seedlings. The roots show dis-colouration and plant wilts. Poor emergence of seedlings is the first symptom of the disease. The seedlings rot before or soon after emergence.

Control

1. Mixed croping of guar with sorghum reduces the damage up to 55 per cent.
2. Addition of organic manures also reduces the disease incidence.
3. Seed treatment with Agrosan GN or Thiram or Capta

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