Benzimidazole fungicides in control of post-harvest diseases of Nagpur mandarin.
Naqvi, S. A. M. H.;
Plant Disease Research Year: 1993 Vol: 8 Issue: 1 Pages: 19-24 Ref: 12 ref.
1993
บทคัดย่อ
Post-harvest dips in 1000 p.p.m. benzimidazole fungicides for 5 min provided effective control under storage conditions favourable for disease development (25-30 deg C, RH>90%) for up to 21 d. Benomyl was the most effective (70.26% decay control, followed by Bavistin (carbendazim 65.85%) and Topsin M (thiophanate-methyl, 60.78%). Residues of carbendazim and benomyl on the fruit surface were 0.888 and 0.848 micro g/g, respectively, well below the max. tolerance. Mancozeb and ziram were ineffective even at 0.2%. Treatment with imazalil prevented sporulation of Penicillium spp. and Aspergillus niger but was less effective against Botryodiplodia theobromae and Geotrichum candidum). The major decays in benzimidazole treated fruit were due to G. candidum and Alternaria citri, causing 50-60% and 26-27%, respectively, of the total decay.