Agricultural Research Management Information System

Home
Research Summary
Search
About Us
- ARMIS
- Brochure
Contact Us
Report
User Request
Data Input
Help
- Operation Manual
  - PDF
  - Video
- Program Area & Commodity
We have reached 37600 number of research entries at this moment.

- Logout

Research Detail

Home
Research
Detail

Efficacy of New Fungicides in Controlling Anthracnose of Mango

M.M. Hossain
Plant Pathology Division, BARI

M.S. Islam
Plant Pathology Division, BARI

Abstract/ Executive Summary:

A field trial was conducted at the Regional Horticulture Research Station, Bangladesh Agricultural Research Institute, Chapai Nawabganj in Bangladesh during February to July 2014, to test the efficacy of 27 new fungicides against post-harvest anthracnose of mango fruits. None of the fungicides under investigation was able to control the disease completely. Out of 27 fungicides Palki 75 WG (Tebuconazole + Trifloxobin), Fuji SC (Dificonazole + Azoxystrobin), Nativo 75 WG (Tebuconazole + Trifloxobin), Ecozole 10 EC (Hexaconazole) and Rodazim 50 WP (Carbendazim + Iprodazim) were the best fungicides to control postharvest anthracnose. Among the fungicides five fungicides i.e. Zole plus (Dificonazole + Propiconazole), G- force 5 EC (Hexaconazole), Durjoy 300 EC (Dificonazole + Propiconazole), Sinmaze 80 WP (Mancozeb) and Sunzoxy (Azoxystrobin + Tebuconazole) were not able to control more than 80 % of the disease. But rest of the fungicides was able to control more than 80 % of the disease.

Keywords: Anthracnose, Mango, Fungicide

Location: Chapai Nawabganj

Start Date:

End Date:

Program Area: Pest Management

Commodity: Mango, Fungicide

Objectives:

An attempt was made to investigate the efficacy of some new fungicides against the post-harvest disease particularly anthracnose of mango

Methodology:

A field trial was conducted at the Regional Horticulture Research Station, Bangladesh Agricultural Research Institute, Chapai Nawabganj, Bangladesh to evaluate the performance of new fungicides by pre-harvest spray against the post-harvest anthracnose disease of mango. The investigation was performed during February to July 2014. The spray was commenced on BARI Aam-1 of 20 years old established in a mango orchard when the panicle size was 10-15 cm long. In order to prevent flower damage by insect pests, Ripcord 10 EC (Cypermethrin) @ 1 ml/litre was mixed with all the fungicides at first spray. The spray was continued up to the harvest of the fruit at 15 days interval. 27 new fungicides from different groups were included to test the efficacy against post-harvest disease of mango. Details of the fungicides including their doses are shown in table 1. Pencozeb 80 WP (Mancozeb) was included as the standard check fungicide. Fungicides were evaluated as their ability to prevent post-harvest anthracnose development which causes severe rot in mango fruits. At every spray schedule, control plants were sprayed with water. Fungicidal spray was stopped at 15 days before harvest of fruits. Randomly selected 21 fruits were harvested at full maturity from each treatment. Harvested treated fruits along with the untreated control were allowed to ripe in natural condition at room temperature (27- 34⁰ C). The development of anthracnose on the harvested fruit was recorded 10 days after harvest following a standard severity scale (0-5) developed by Bondad et al. (1980). Percent disease index (PDI) was measured from percent fruit area covered by the disease. To evaluate the effectiveness of the chemicals, the severity of diseases was measured by calculating the percent disease index (PDI) according to the formula of Singh (1984).

Source of Information: Annual Research Report, Plant Pathology Division, BARI--2014-15

Article Link (Online Journal):

Funding Source:

1.

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Pre-harvest fungicidal spray had significant effect on anthracnose development in harvested mango fruits. All the fungicides included in this investigation reduced both the incidence and severity of anthracnose at different levels compared to control but none of them was able to protect completely from the disease. The lowest (9.52 %) disease incidence was recorded in mango fruits harvested from the plants sprayed with Palki 75 WG, Nativo 75 WG and Suzafa 10 EC followed by Agrozim 500 WP (14.28 %), Fuji SC (14.28 %), Norbin (14.28 %), Ecozole 10 EC (14.28 %). Other fungicides showed little effect in controlling the incidence of the disease. In case of severity, the lowest (1.9%) severity as well as the highest disease control (96.93%) was recorded in fruits sprayed with Palki 75 WG (Tebuconazole + Trifloxobin ) Followed by Agrozim 500 WP (Carbendazim), Nativo 75 WG (Tebuconazole + Trifloxobin), Ecozole 10 EC (Hexaconazole) and Rodazim 50 WP (Carbendazim + Iprodazim) where as the highest severity (26.66%) as well as lowest disease control (56.93 %) was recorded in fruits sprayed with Sinmaze 80 WP (Mancozeb) followed by G- force 5 EC (24.85 % & 59.85 %), Sunzoxy (24.12 & 61.03%), Zole plus (17.13 % & 72.33 % ) and Durjoy 300 EC ( 14.28 % & 76.93 %). Rest of the fungicides were effective to control the severity of the disease compared to control. The highest incidence as well as the severity of the disease was always noted in fruits harvested from unsprayed control plants. There were six fungicides under Hexaconazole group. One of them was not effective against the disease. Similarly only one fungicide was included under Caebendazim groupwhich was effective against the disease. There were two fungicides under Mencozeb group. One of them was not effective against the disease. Only one fungicide was included under Carbendazim + Iproddazim, Tricyclazole, Tebuconazole, Mancozeb + Carbendazim, Trifloxobin + Tebuconazole, Dificonazole + Azoxystrobin, Azoxystrobin + Cyproconazole, Zineb + Hexaconazole, Propiconazole + Dificonazole and Hexaconazole + Tricyclazole group which was effective against the disease. Only one fungicide was included under Azoxystrobin + Tebuconazole which was not effective against anthracnose. There were three fungicides under Dificonazole + Propiconazole group. Among them only one fungicide was effective against anthracnose. There were three fungicides under Tebuconazole + Trifloxobin. All of them were effective against anthracnose. Fungicides under same group showed differential efficacy to control the post-harvest anthracnose of mango fruits. The probable cause might be the amounts of ingredient used in each fungicide during formulation were different as each of them was obtained from different sources. It may be concluded from this study that Indozole 50 EC, Vimzole 300 EC, Agrozim 500 WP, Propel 75 WP, Palki 75 WG, Fuji SC , Rainozole 5 EC, Dover 28 SC, Valimex 250 EW, Malfil, Sprint, Indofill Baan, Avtar 72 WP, Norbin, Nativo 75 WG, Prodifen 50 EC, Suzafa 10 EC, Akota, Hexavalhy, Ecozole 10 EC, Rodazim 50 WP, Two- in one 250 SC may be considered for recommendation for the control of mango anthracnose as the fungicides were able to control more than 80 % of the disease which was similar to standard check Pencozeb.

Knowledge Management: Report/Proceedings