Integrated Disease Management of Basal Stem Rot of Arecanut caused by Ganoderma spp. under Field conditions

Author: Bachu Raghavendra, B. Gangadhara Naik, M.K. Naik, H. P. Maheswarappa, R. Ganesha Naik and K. M. Satish

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Abstract

In the current experiment, an integrated disease management trial was conducted in the farmer’s field infested with basal stem rot of arecanut from November 2019 to August 2021 at Arabilachi village, Bhadravathi Taluk Karnataka, by imposing eight treatments, T1 to T8. Among the treatments imposed, T4 (Soil application of 10 liters of Hexaconazole 5% EC @ 2 ml/lit water/palm at half-yearly interval followed by soil application of Trichoderma virens enriched with 2 kg neem cake/ palm 15 days after chemical application) was found effective, where a slight increase in disease index (4.87 %) over the initial and maximum green nut yield (9.70 kg/palm in 2020 and 11.12 kg/palm in 2021) was recorded, which is followed by T6 (Soil application of T. virens and P. fluorescens @100g each along with neem cake@ 2kg/palm yearly + Root feeding of 3 ml of Hexaconazole (5% EC) in 100 ml water at half-year interval) where 7.96 kg/palm in 2020 and 9.55 kg/palm in 2021 was observed. In contrast, the leas

Keywords

Basal stem rot, Hexaconazole, Trichoderma virens, Disease index, and Green nut yield