Pre-harvest fungicidal application for control of Colletotrichum gloeosporioides in Alphonso mango fruits.
Dalvi M. B., Patil P. D., Raut S. P.
Author Affiliation: Regional Fruit Research Station, Vengurle, Sindhudurg 416 516, India.
Annals of Plant Protection Sciences 18 : 261-262
Abstract : The efficacy of some fungicides in reducing postharvest losses in mango cv. Alphonso due to anthracnose disease, caused by Colletotrichum gloeosporioides [Glomerella cingulata], was investigated in Sindhudurg, India, during 2 cropping seasons. Profusely flowered Alphonso trees were sprayed with mancozeb at 0.20% (T1), tricyclazole at 0.1% (T2), carbendazim at 0.1% (T3), triophanate-methyl at 0.1% (T4), hexaconazole at 0.05% (T5), carbendazim+mancozeb at 0.2% (T6), difenoconazole at 0.05% (T7), metalaxyl+mancozeb at 0.2% (T8) and propineb at 0.1% (T9), along with an insecticidal spray (control; T10). Three sprays, 1st at 15 days old panicle, 2nd at peanut stage and 3rd at marble stage, were given. The 1st and 2nd sprays were undertaken along with the insecticiday spray, whereas the 3rd spray was only with the fungicides. T2 (5.23%), T4 (5.97%), T3 (8.72%) and T6 (8.72%) were significantly superior in reducing the pre-harvest infection. They were followed by T9 (10.79%) and T7 (15.33%). However, T9 was found equally effective with T3 (8.72%), T4 (5.97%) and T6 (8.72%). T1 (17.74%) and T8 (17.84%) were found ineffective in controlling field infection of anthracnose and were on par with the control (18.19%).