บทคัดย่องานวิจัย

Efficacy of postharvest fungicidal treatments against brown rot of apple.

Sharma, R. L.;

Journal of Mycology and Plant Pathology Year: 2000 Vol: 30 Issue: 1 Pages: 94-95 Ref: 6 ref.

2000

บทคัดย่อ

Efficacy of postharvest fungicidal treatments against brown rot of apple.

Four systemic (benomyl, carbendazim, thiabendazole and thiophanate-methyl) and three non-systemic (dicloran, diphenylamine and sodium orthophenylphenate) fungicides were tested for their comparative efficacy against postharvest brown rot of apple (cv. Golden Delicious) caused by Monilinia laxa and M. fructigena. The systemic fungicides at 250 and 500 mu g/ml and non-systemics at 1000 and 2000 mu g/ml were used for pre (12 h before inoculation) and post-inoculation (12 h after inoculation) treatments. The treated fruits were inspected for decay after two weeks storage at 24 plus or minus 1 deg C. Treatments with systemic fungicides had a significant effect in controlling brown rot. Carbendazim was significantly superior to the rest of the fungicides followed by thiabendazole, benomyl and thiophanate-methyl. The efficacy was better at 500 mu g/ml concentration. Carbendazim at 500 mu g/ml completely controlled both the Monilinia spp. when used as a protective treatment and effectively checked M. la

xa (92.1%) and M. fructigena (90.9%) in the post-inoculation treatment. In general, the test fungicides proved more efficacious as pre-inoculation than post-inoculation treatments.