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Integrated disease management of stem end rot of mango in the Southern Philippines

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Akem, C., Opina, O., Dalisay, T., Esguerra, E., Ugay, V., Palacio, M., Juruena, M., Fueconcillo, G. and Sagolili, J. (2013) Integrated disease management of stem end rot of mango in the Southern Philippines. ACIAR Proceedings Series (139). pp. 104-110. ISSN 0816-4266

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Article Link: http://www.aciar.gov.au

Abstract

This research aimed to develop and evaluate pre- and postharvest management strategies to reduce stem end rot (SER) incidence and extend saleable life of 'Carabao' mango fruits in Southern Philippines. Preharvest management focused on the development and improvement of fungicide spray program, while postharvest management aimed to develop alternative interventions aside from hot water treatment (HWT). Field evaluation of systemic fungicides, namely azoxystrobin ( Amistar 25SC), tebuconazole ( Folicur 25WP), carbendazim ( Goldazim 500SC), difenoconazole ( Score 250SC) and azoxystrobin+difenoconazole ( Amistar Top), reduced blossom blight severity and improved fruit setting and retention, resulting in higher fruit yield but failed to sufficiently suppress SER incidence. Based on these findings, an improved fungicide spray program was developed taking into account the infection process of SER pathogens and fungicide resistance. Timely application of protectant (mancozeb) and systemic fungicides (azoxystrobin, carbendazim and difenoconazole) during the most critical stages of mango flower and fruit development ensured higher harvestable fruit yield and minimally lowered SER incidence. Control of SER was also achieved by employing postharvest treatment such as HWT (52-55°C for 10 min), which significantly prolonged the saleable life of mango fruits. However, extended hot water treatment (EHWT; 46°C pulp temperature for 15 min), rapid heat treatment (RHT; 59°C for 30-60 sec), fungicide dip and promising biological control agents failed to satisfactorily reduce SER and prolong saleable life. In contrast, the integration of the improved spray program as preharvest management practice, and postharvest treatments such as HWT and fungicide dips (azoxystrobin, 150-175 ppm; carbendazim, 312.5 ppm; and tebuconazole, 125-156 ppm), significantly reduced disease and extended marketable life for utmost 8 days.

Item Type:Article
Business groups:Crop and Food Science
Additional Information:Crop and Food Science Oakeshott, J. Hall, D. Smallholder HOPES - horticulture, people and soil. Proceedings of the ACIAR-PCAARRD Southern Philippines Fruits and Vegetables Program meeting, Cebu, Philippines, 3 July 2012. Australian Centre for International Agricultural Research (ACIAR) Canberra, Australia
Keywords:FF003Horticultural Crops (NEW March 2000) FF100Plant Production FF610Viral, Bacterial and Fungal Diseases of Plants (NEW March 2000) HH100Biological Control HH300Integrated Pest Management HH405Pesticides and Drugs: Control (NEW March 2000) HH410Pesticide and Drug Resistance HH700Other Control Measures QQ050Crop Produce QQ110Food Storage and Preservation QQ111Storage Problems and Pests of Food QQ500Food Composition and Quality 131860-33-8 17804-35-2 10605-21-7 119446-68-3 8018-01-7 107534-96-3 148-79-8 azoxystrobin benomyl biological control agents carbendazim chemical control cold storage crop yield difenoconazole disease incidence fruit set fruits fungicide tolerance fungicides heat treatment hot water treatment integrated control mancozeb mangoes natural enemies plant disease control plant diseases storage life tebuconazole thiabendazole Philippines Mangifera indica Mangifera Anacardiaceae Sapindales dicotyledons angiosperms Spermatophyta plants eukaryotes APEC countries ASEAN Countries Developing Countries South East Asia Asia
Subjects:Plant pests and diseases > Pest control and treatment of diseases. Plant protection
Plant culture > Fruit and fruit culture
Live Archive:23 Jun 2014 04:54
Last Modified:03 Sep 2021 16:49

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