root rot disease – Gramophone

Cotton Root rot Disease Management

This disease occurs in both native and American varieties of cotton.
Usually, it occurs after the first monsoon rains the plant enters a state of 30-40 days.
Symptoms of root rot disease appear circular or field crops start drying up in circular patches.
The affected plant roots are Melt When you uproot the plants it’s easily uprooted.
Trichoderma viride should be used as soil treatment at the rate of 500 gram/acre.
Carbendazim 12% + Mancozeb 63% WP @ 500 gram / acre or thiophanate methyl 70% WP @ 500 gram / acre or Trichoderma viride @ 250 gram / acre

The withering of cotton plants is the first symptom of this disease.
Due to this, in severe cases all the leaves may fall or the plant may fall.
In this disease, the root bark bursts after yellowing due to which water and nutrients do not reach the plant properly.
The entire root system rotting and the plant can be uprooted easily.
Initially, only a few plants are affected in the field. Then, with time, the disease spreads around the entire field, forming a circle around these plants.
To prevent disease, seeds should be treated @ 5 grams of Trichoderma viride or 10 grams of Pseudomonas fluorescens per kg. or
Treat seeds @ 2.5 gm Carbendazim 12% + Mancozeb 63% WP per kg.
To protect, spread 2 acres of Trichoderma viride in 4 tons FYM and spread it in an acre field.
For disease control, mix 500 gm of Carbendazim 12% + Mancozeb 63% WP or 500 gm Thiophanate Methyl 75% WP or 600 gm Metalaxyl 4% + Mancozeb 64% WP in 200 liters of water and drenching near the stem of the plant.