Horticulture department swings into action in Thanjavur to contain coconut wilt disease

After coconut farmers in Pattukkottai noticed sap oozing from the base of trees and other symptoms, the Horticulture department in Thanjavur and scientists from the Coconut Research Board in Veppankulam Station conducted a field survey. They identified the issue as ‘Thanjavur wilt’ disease, common in this region during summer

After coconut farmers in Pattukkottai noticed sap oozing from the base of trees and other symptoms, the Horticulture department in Thanjavur and scientists from the Coconut Research Board in Veppankulam Station conducted a field survey. They identified the issue as ‘Thanjavur wilt’ disease, common in this region during summer.

Following this, the department instructed block-level officers to inspect all areas for affected trees. The research station issued a detailed advisory. The disease appears mostly in sandy coastal groves with poor maintenance. Initial signs include sap oozing up to 3 feet from the base, trunk discoloration and rot, yellowing and drying fronds, decayed roots, and premature nut fall. In advanced cases, beetle infestations and fungal growth at the base may occur.

The disease is caused by ganoderma lucidum, a fungus that spreads via soil and water and survives long-term in the soil. Management includes removing infected trees, avoiding shared irrigation, and using drip systems. Farmers are advised to apply bordeaux mixture around the tree base and administer hexaconazole root treatment quarterly.

On Friday, an awareness camp was held at Ponnvarayankottai village by the Horticulture department. Demonstrations on disease symptoms and control methods were conducted. Officials, scientists, and farmers participated, including Deputy Director A. Venkataraman and experts from Veppankulam station.

The department has directed block-level demonstrations involving scientists and farmers to promote early detection and disease management.