Management of 'Katte' Disease of Small Cardamom
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Date
1982
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Abstract
Influence of periodical roguing of 'Katte' affected clumps on disease spread was studied for three years in four different plantations With various levels of initial inoculum. Roguing of affected clumps at monthly interval has resulted in reduction of the disease to a manageable level of less than one percent incidence, within three years irrespective of initial level of ino culum in the plantation. However, higher the initial inoculum more is the number of clumps to be rogued and replanted with healthy plants during the first year. Comparison of data on expenditure incurred on roguing of affected clumps one one hand, and production during different years on the other, revealed that roguing was economical. Roguing of diseased clumps at shorter intervals (weekly) only for 3 months, which is an average disease incubation period in host, appeared to be more advantageous in reducing the chance of secondary spread before its elimination. Large-scale implementation of 'Katte' eradication programme in growers' plantations revealed that it was possible to extend such programmes whereby the growers pay for technical assistance in tracing and roguing of affected clumps.
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Placrosym V, 1982, p.563-571