Chemical control of Lasiodiplodia theobromae, the causal agent of mango decline in Sindh.
Khanzada M. A., Lodhi A. M., Saleem Shahzad
Author Affiliation: Pest & Disease Research Lab., Department of Botany, University of Karachi, Karachi-75270, Pakistan.
Pakistan Journal of Botany 37 : 1023-1030
Abstract : Mycelial growth of Lasiodiplodia theobromae was significantly inhibited by carbendazim and thiophanate-methyl when used at 1 ppm a.i. or more. Alliete (fosetyl-aluminium [fosetyl]) was effective at relatively high concentrations i.e., at 1000 and 10?000 ppm a.i., whereas, Copxykil (copper oxychloride), Cuprocaffaro (copper oxychloride) and Thiovit (sulfur) failed to inhibit the mycelial growth of L. theobromae. In field experiment, carbendazim was more effective than thiophanate-methyl and Alliete in reducing the fungal infection in mango plants, suppressing the gum exudation, dieback and wilting resulting in significant enhancement in vegetative growth of plants.