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Mar Disease in Pigeon Pea – Causes, Symptoms, and Effective Prevention

Introduction:

"Mar" disease in pigeon pea is a highly serious and destructive condition. Once it occurs, treatments give limited results. That’s why preventive measures and proper planning are essential to manage this disease effectively.

Main Causes:

1. Excess rainfall and waterlogged soil – Lack of oxygen to roots increases infection.

2. Plant lodging after flowering – Directly affects plant growth.

3. Phytophthora blight – Spots appear on the stem, and the plant completely dries.

Disease Characteristics:

• Spreads rapidly during rainy weather with high humidity.

• Initially, small spots appear on the stem, followed by complete drying of the plant.

• Once a plant dies, it cannot be revived.

Why Prevention is Better Than Cure:

After the disease sets in, chemical or biological treatments have limited effectiveness. Hence, taking preventive action before infection is the best approach.

Effective Prevention Measures:

If your field had mar disease in pigeon pea last year, the risk remains this year too. In that case:

Advantages of Tricoboost DX:

Tricoboost DX is a Trichoderma-based product that is effective against:

• Phytophthora blight

• Wilt

• Mar disease

Compared to traditional wettable powder Trichoderma, Tricoboost DX is more effective because:

• Higher impact with lower dose

• Fully water-soluble

• Fast-acting formula

• Higher microbial count

Best Time for Application:

• Apply Tricoboost DX before the end of July in pigeon pea crop.

• Use it before any disease symptoms appear.

Conclusion:

Mar disease in pigeon pea is highly damaging and reduces yield significantly. Since controlling it after infection is difficult, prevention is the best solution. Timely application of Tricoboost DX can save the crop and ensure better yield.