In vitro cross pathogenicity and management of Colletotrichum gloeosporioides causing anthracnose of mango.
Abhishek Sharma, Verma K. S.
Author Affiliation: Department of Plant Pathology, Punjab Agricultural University, Ludhiana 141 004, India.
Annals of Plant Protection Sciences 15 : 186-188
Abstract : The potential for cross infection in isolates of C. gloeosporioides [Glomerella cingulata] from mango, citrus and guava was evaluated by inoculation on alternative hosts. The efficacy of fungicides in controlling the disease was also evaluated: Bavistin [carbendazim], Topsin-M [thiophanate-methyl], Dithane-M45 [mancozeb], Captaf [captan] and Kavach at 100, 200, 500 and 1000 µg/ml; and Bordeaux mixture at 800 and 1000 µg/ml. The isolates from all the plants were pathogenic to mango and guava. Citrus did not show symptoms when inoculated with isolates from other hosts. Among systemic fungicides, Bavistin and Topsin-M at 100 µg/ml were the most effective. Among non-systemic fungicides, Kavach and Dithane M-45 at 1000 µg/ml showed the best inhibition, followed by Captaf and Bordeaux mixture.