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Tamil Nadu - Coimbatore Printer Friendly Page   Send this Article to a Friend

TNAU recommends pest and disease control measures

Staff Reporter

COIMBATORE: The Tamil Nadu Agricultural University (TNAU) has suggested plant protection measures to be undertaken by farmers this season. Farmers of Virudhunagar and Sivaganga are asked to watch for incidence of rice blast which can be controlled by foliar spray of tricyclazole or edifenphos.

Smut

Rice false smut incidence has also been noticed in Thanjavur, Sivaganga and Villupuram.

Farmers can use sprays of hexaconazole or chlorothalonil based on intensity.

Necessary precautions may be taken not to use seeds from affected crops for subsequent planting.

For rice bacterial leaf blight, farmers can spray streptomycin sulphate and tetracycline combination with copper oxychloride or copper hydroxychloride.

Sugarcane

In sugarcane, internode borer incidence has been found to occur in Salem, Namakkal, Thanjavur, Theni, Thiruvannamalai, Villupuram and Virudhunagar.

Trichogramma egg parasitoid can be released to combat this.

Bollworms found in cotton at Virudhunagar, Theni and Krishnagiri can be controlled by application of quinalphos or carbaryl.

Groundnut farmers

Groundnut farmers are asked to watch for incidence of leaf miner by setting up light traps.

If normal rain is not received, there is a possibility for the outbreak in Virudhunagar, Thiruvelveli and Pudukottai.

Farmers can spray quinalphos or methyl demeton or dimethoate.

Coconut leaf blight in Pollachi and Dindigul crossing the Economic Threshold Level can be controlled by spraying Bordeaux mixture or tridermoph.

Tapioca, papaya and mulberry farmers are asked to watch for incidence of papaya mealy bug for obtaining parasitoids free of cost from TNAU research stations / KVKs / colleges.

Details

For details, contact Head, Department of Agricultural Entomology, TNAU, on 0422-6611214; or Head, Department of Plant Pathology, TNAU, on 0422-6611226.

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