Pests, Diseases and their Control

White grubs feed on roots in the nursery. Vascular wilt disease (Burkholderia solanacearum) is noticed in nursery and young plantations. As preventive measures against this disease, maintain proper drainage and avoid root injury. Leaf spot disease (Phomopsis sp. and Colletotrichum gloeosporioides) in nursery and young plantations can be controlled by carbendazim 0.05 per cent application. Against pink disease (Corticium salmonicolor) in young plants, apply Bordeaux paste.

Defoliators (Hyblaea purea) and skeletonisers (Eutectona machaeralis) can be controlled by quinalphos 25 EC 0.05 per cent spray. However, only in small plantations / woodlots chemical control through insecticide spray is advocated. For controlling stem borer (Sahyadrassus malabaricus) apply 0.2 per cent quinalphos at the site of infection after removing the frass. Avoid injury to root and collar to prevent bud rot and heart rot occurrence. Cut and remove the parasitic plants (Dendrophthoe falcata var. pubescens) before fruiting.