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Updated: May 5, 2025
The views, I may say, of Mr. Graham Anderson as regards leaf disease are particularly valuable, as he has paid much attention to the subject. Leaf disease is the common name given to the attack of Hemeleïa Vastatrix, a fungoid plant which distributes its spores in the form of a yellow powder.
Then with our dry east winds many leaves become yellow and fall off, and some become so because they have been injured by the pickers, others from rot, and others from old age, and all these leaf losses are commonly put down to leaf disease, so that, taking all these points into consideration, I find myself quite unable to determine, even approximately, the amount of loss arising from Hemeleïa Vastatrix.
And as to the effect of shade upon Hemeleïa Vastatrix, I made particular inquiries when visiting estates in 1891 on the slopes of the Nilgiris, and conversing with planters on the subject. One manager went so far as to say that there was no leaf disease under the shade trees. Mr. Reilly, of Hillgrove Estate, said there was much less leaf disease under the shade trees.
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