Effect of soil application of seven chemicals on disease incidence and yield of yellow leaf disease affected areca palm (Areca catechu L.)
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2007-02-08
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The yellow leaf disease affected areca palms in early stages of the disease were treated with seven chemicals, viz. quintozene (Brassicol 75 WP ), carboxin (Vitavax), carbendazim (Bavistin WP), copper oxychlorides (Cupramar and Blue Copper-50), carbofuran (Furadan 3G) and metham sodium. The chemicals were applied to the soil as drench at quarterly intervals for three years. The yield data of die palms were recorded before and after treatment Pre and post-treatment disease incidence were recorded every year soon after the monsoon. The results showed that the application to the soil of the above seven chemicals had no effect on the incidence of yellow leaf disease although there was an increase in yield in the Cupramar, Blue Copper-50 and Furadan 3G treated plots. The increase in yield in these plots may point to the efficacy of chemicals in increasing yields, if not in checking the disease. These preliminary observations revel that efficacy of chemicals in increasing yields in early stages of the disease calls for a detailed investigation.
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In: Proceedings, PLACROSYM II, UPASI. Coonoor. 26-29 Jun 1979. Edited byC. S. Venkata Ram and others p-361-366