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06
Aug

Grain discoloration

Symptoms

1. This occur at the time of panicle initation stage.

2. At this time normal grain color changes to brownish white color.

Management

1. Seed treatment with Bavistin (0.2%) or vitavax (0.2%) for 6 hrs.

2. Spary bavistin 0.1 %

06
Aug

Khaira disease

Symptom

1. Usually in nursery; chlorotic/ yellow patches at leaf base on both sides of the midrib; restricted root growth and usually main roots turn brown.

Management

1. Use 25kg Znso4/ha before transplanting or sowing at time of land preparation.

2. If crop is infected then use 5 kg Znso4 + 25 kg lime in 600-700 litre water per hectare.

06
Aug

False smut

Causal organism:- ustilago noidea virus

Symptom

1. False smut start as light green ball of spores covered by a thin silver colored skin. The balls erupt exposing the orange spores.

2. As time passes spores turn dark green to black. Damage from smuts occur due to contamination of other grains by spores during harvest, miiling causing quality problems and discoloration during paraboiling and cooking.

Management

06
Aug

Sheath blight

Causal organism: Thanatephorus cucumeris

Symptoms

1. initial infection occur on the stem near the water lime and appear as water soaked oval lesion which often dries and turns tan.

2. All the plant parts are susceptible to infection except roots. Sheath tends to develop in circular areas in the field and cause what are called bird nests.

3. I

06
Aug

Army worm

 

Local name:

Nature Of Damage of Armyworm:

1. Damage is caused by larvae feeding on leaves from edges, leaving only the midrib and stems.

2. In severe infestation, entire seed beds and fields are destroyed and appears r as if it has been grazed by animals.

Control of Armyworm:

1. Armyworms are held in check

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