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12
Jul

Sheath Rot

Sheath Rot

Symptoms of Sheath Rot

1. Symptoms usually develop as lesions on sheaths of lower leaves near the water line when plants are in the late tillering or early internode elongation stage of growth (approximately 10 – 15 days after flooding).

2. These lesions usually develop just below the leaf collar as oval-to-elliptical

12
Jul

Red stripe

Red stripe

Local name: Kankara tegulu

Causal organism: Microbacterium sp.

Symptoms:

1. The symptoms of red stripe appeared on leaf blades or upper parts of leaf sheaths at the heading stage in the paddy fields.

2. A typical lesion consisted of an orange to reddish-brown spot wi

12
Jul

Control measures for Stem Rot

Control of stem rot

The follwoing measures can be adopted for controlling Stem rot in Rice:

  • Summer ploughing
  • Seed treatment
  • Optimum spacing
  • Avoiding stagnation of irrigation water.
  • Timely control of insect pests like stem borer and brown plant hopper
  • Spraying with validamycin @ 2.0ml or hexaconazole @ 2.0ml or propiconazole @ 1.0ml or benomyl 1.0g or carbendazim 1.0g per litre of water.
  • Thorough coverage of the
12
Jul

Stem rot

Stem rot

Local name : Kaandam kullu tegulu

Causal organism: Sclerotium oryzae

Symptoms:

The symptoms of Stem rot are:

1. The first symptom appears as small, black irregular lesions on the outer leaf sheath near the waterline.

2. The fungus penetrates the inner leaf sheath resu

12
Jul

Bacterial Leaf Blight

Bacterial Leaf Blight

Local Name: Aaku yendu thegulu

Causal organism: Xanthomonas campestris pv. oryzae,

Symptoms of Bacterial Leaf Blight

1. Bacterial leaf blight is a typical vascular disease and has three distinct phases of symptoms. viz., leaf blight phase, kresek phase and pale yellow lea

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