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Disease/Pest

area wise diseases

Crop Name:

Groundnut

Disease/Pest Name:

Tikka Leaf Spot

Reported Area:

Pedamatlapudi

Reported Mandal:

Nagaram

Symptoms:

The first visible symptoms appear on the leaflets lower leaves as dark spots which at later stage, are surronded by yellow rings.
The spots are circular. They appear in a large number on the leaves.
Mature spots are dark-brown to almost black, particularly on the upper surface the leaflets.
Whereas, on the lower surface they are lighter in colour. The spots are few on the leaf petioles and stem.
Sometimes spots coalesce resulting in the defoliation and the shedding leaves is a characteristic feature of the disease.

Causal_organism:

Cercospora arachidicola and Cercospora personata

Curative Measures:

Foliar spray with Bordeaux Mixture, Dithane M-45, Benlate, Bavistin gives good results.

Preventive Methods:

Plant disease debris should be burnt.
Seed treatment with a suitable fungicide like Benlate and Vitavax 2gm/kg seed.

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