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Mango fruit suffers from many post harvest diseases among them anthracnose [Colletotrichum gloeosporioides (Penz) Penz and Sacc.] In stem end rot [Botryodiplodia theobromae (Pat.) Griffon and Maubl.], Alternaria rot (Alternaria alternata Keissal) and black mould (Aspergillus niger V. Tieghem) are the important diseases which contribute to the post harvest losses of mango. The market survey conducted during 2015 in Dharwad, Gadag and Uttara Kannada districts revealed that, among the post harvest diseases of mango anthracnose showed maximum PDI (14.25) followed by stem end rot (8.85) and Alternaria rot showed least PDI (5.10). Among the districts surveyed maximum PDI (10.98) was recorded in Dharwad followed by Hubballi (9.01) and least PDI (6.53) was recorded in Ankola. Among varieties, Alphanso showed maximum PDI (10.66) followed by Pairi (7.83) and least PDI was observed in Ishadi (6.40) and Neelam (6.22). The PDI ranged from 6.22 to 10.66.

Keywords

Post Harvest Diseases, Mango, Market Survey.

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References

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Studies on Evaluation of Fungicides Against Curvularia lunata in Maize

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Authors

Kotramma C. Adaangadi ¹, S. I. Harlapur ², Savita Chakrasali ², Basamma R. Hadimani ²

Affiliations
1 Regional Research Station (S.D.A.U.), Bhachau (Gujarat), IN
2 Department of Plant Pathology, College of Agriculture, University of Agricultural Sciences, Dharwad (Karnataka), IN

Source

International Journal of Agricultural Sciences, Vol 14, No 1 (2018), Pagination: 225-228

Abstract

Maize is an important cereal crop of India. Maize not only an important human nutrient but also a basic element of animal feed and raw material for manufacture of many industrial products. Recently the crop is severely affecting with Curvularia leaf spot of maize caused by Curvularia lunata (Wakker) Boedijn and it is endemic in the maize growing areas of northern Karnataka. Fungicides were evaluated by poison food technique. Among the five contact fungicides tested at three concentrations, mancozeb 75% WP showed cent per cent inhibition. Among all the systemic fungicides tested triazoles were found to be a most effective in inhibiting the mycelial growth of the fungus at all the concentrations. The combiproduct fungicides viz., carboxin 37.5%+thiram 37.5% WS, captan 70%+hexaconazole 5% WP, iprovalicarb 5.5%+propineb 61.25% WP and pyraclostrobin 13.3%+epoxiconazole 5% WP gave 100 per cent inhibition at all the concentrations tested.

Keywords

In Vitro, Fungicides, Curvularia lunata, Maize, Evaluation.

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References

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Anonymous (2014). http://agricoop.nic.in/agristatistics.htm.

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