Eco-friendly Management of Anthracnose Disease of French bean Caused by Colletotrichum lindemuthianum (Sacc. and Magn.)

The present investigation entitled, “Eco-friendly Management of Anthracnose Disease of French bean Caused by Colletotrichum lindemuthianum (Sacc. and Magn.)” was carried out at Veer Chandra Singh Garhwali, Uttarakhand University of Horticulture and Forestry, Bharsar, Pauri Garhwal during year 2022-2023. French bean is also known as common bean or green bean and is a rich source of proteins, carbohydrates, fibres, vitamins and minerals for humans. Anthracnose is one of the most destructive diseases of French bean caused by Colletotrichum lindemuthianum which can lead up to 100% crop loss. In this experiment the efficacy of different treatments such as essential oils, animal products and plant leaf extract were tested in in vitro and in vivo condition against Colletotrichum lindemuthianum. Out of the seven treatments screened in vitro by poisoned food technique for their inhibitory effect on mycelium growth of Colletotrichum lindemuthianum showed that minimum mycelial growth was recorded in Eucalyptus oil (00 mm) with (100%) inhibitory effect followed by Buttermilk (21.00 mm) with (72.37%) inhibition. In in vivo efficacy of treatments, prophylactic spray of Eucalyptus oil @ 5% gave the minimum per cent disease incidence and per cent disease index (31.00%) and (24.76%) and afterwards came Buttermilk @ 15% with per cent disease incidence and index (33.53%) and (26.33%) respectively. The yield was maximum from the plots treated with Eucalyptus oil @ 5% (1.96 kg/plot) and (242.79 q/ha). All the treatments used were efficient against the disease and gave better control. The treatments used were eco-friendly, easily accessible and non-toxic.