Disease Problems of Eucalypts in India

Abstract

Eucalyptus spp. Raised in large scale plantations by Forest Departments, in agriculture farms by farmers and on all available vacant lands along roadside, railway tracks, canal banks etc, under social forestry programmes in most of the Indian States suffer from a number of diseases Brief accounts of pathogenic diseases and physiological disorders, reported so far from India. Are given. Cylindrocladium seedling blight caused by different species of Cylindrocladium and pink disease caused by Corticium salmonicolor are the most serious pathogenic diseases in high rainfall ares. Almost all the Eucalypts planted in India have been attacked. Eucalyptus deglupta and E. torelliana being mildly suspectible. Yellowing and die back in E. tereticornis is serious in North India. Unsuitable sites and deficiency of available micro nutrients are associated with this disorder. Little leaf and chlorosis is also considered a mycoplasma disease.