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

Survey on the Diseases of Jackfruit and Some Aspects of Control Measures for Gummosis Disease in Bangladesh

M. A. Rahman
Plant Pathology Section, Horticulture Research Centre, BARI, Gazipur - 1701.

M. Afroz
Plant Pathology Section, Horticulture Research Centre, BARI, Gazipur - 1701.

Abstract/ Executive Summary:

A survey program was conducted and incidence of gummosis disease was recorded during the period from 2009 - 2010 — 2011 (two years) at five major jackfruit growing areas namely Khagrachari, Barahmanbaria, Narasingdi, Tangail and Gazipur. About 45 - 87% of jack trees were found to be infected by gummosis caused by Phomopsis atrocarpi irrespective of age of the trees. Among the diseased plants, some of them are curable but the other is not. For management of the devastating disease , primarily it needs to chisel the diseased tissues properly from the infected areas followed by treatment with Bordeaux paste or coal tar to cure the plants. The treatments need to be applied at 0 days interval before or after the rainy season because in wet condition, less absorption of the plant tissues may reduce the effective ness of the treatments. Remarkable success was observed in every location in each plant by controlling 80 - 90%diseased area by this process. The yield within one and half year increased, as a result farmers benefit was higher more than two folds. This is the first report from Bangladesh on the effectiveness of Bordeaux paste or Cola tar for the control of gummosis of jack trees.

Keywords: Jack fruit, Artocarpus heterophyllus, Gummosis, Phomopsis artocarpi, Bordeaux paste

Location: Khagrachari, Barahmanbaria, Narasingdi, Tangail and Gazipur

Start Date: 00-00-2009

End Date: 00-00-2011

Program Area: Pest Management

Commodity: Diseases, Jackfruit

Objectives:

1. To record the available diseases of jack fruit, the incidence and severity of damage due to the occurrence of gummosis disease.

2. To develop its effective management tactics to increase yield and save the crop.

Methodology:

The disease recording and survey was conducted during the period from 2009 - 2011 at five major jackfruit growing areas namely Khagrachari, Barahmanbaria, Narasingdi, Tangail and Gazipur. Primary data collection and orchard selection of the farmers were conducted from each district; and at least 1-3 locations of an upazila were selected for experimentation on disease management activity. Sub-Assistant Agriculture Officer (SAAO) of Department of Agriculture Extension cordially helped for farmers’ selection process. Healthy and diseased plant from different locations of the area were counted and recorded. Different diseased symptoms from stem, root, leaf, twigs were collected to identify the causal pathogen in the laboratory. Cultural and morphological characteristics were also recorded for each disease. Co ach’s postulates were done to confirm the pathogenicity after obtaining the pure culture of the pathogen that cause gummosis in selected media following standard method. The severity of the disease was classified according as follows: Low=1 - 2 infection courts/plant; Medium= 3 - 5 infection courts/plant; High= Above 5 infection courts/plant. The gummosis diseased plants were categorized as curable and non - curable depending on the severity, area and deepness of infection covered by the disease and approximate plant age was also recorded . The plants having big and deep infected area on the stem which may not possibly chisel ed that may cause harmful effect to plants. The gummosis disease management experiment was set up during 2010 - 2011 seasons at five upazilas with treatments viz., i) Bordeaux paste, ii) Coal tar, iii) Bavistin (0.3%) and iv) control (only scoop ing of infected tissues). Bordeaux paste was prepared according to the method. The experiment is laid out in Randomized Complete Block (RCB) design with three replications. In each location, 4 orchards were selected hence 12 plants belonged to one treatment in the present study. Individual plant was considered as replication and the treatments were applied twice in a year before and after the rainy season (March and September). Any kinds of infection courts from the similar aged plants were selected and infected tissues were chiseled from all plants taken under different treatments . Final data on infection court was measured after one month of second treatments. Data on percent disease reduction and yield increase by number and weight were derived. The numbers of fruits and weight producing by each plant in the previous year and fruits produced after treatments in the following year were compared. Benefit cost ratio was calculated on the basis of farm price of the produce.

Source of Information: Eco-friendly Agril. J. 9(02):10-14, 2016 (February)

Article Link (Online Journal): http://efaj-international.com/wp-content/uploads/2016/02/2-1-EFAJ-33022016.pdf

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The yield was 26.3% - 38.8%higher in Bordeaux paste treated plants compared to control (scoped plants) and the results varied with locations. The increase of yield was found higher in Bordeaux paste treated plants compared to Coal tar/Bavistin treatments and control. In the present study, the effect of gummosis control for tree plants like jack fruit was calculated after one and half years of disease control and cumulative effective on yield supposed to be higher in course of time. The benefit cost ratio (BCR) was found 2.9 in Bordeaux paste treatment which found higher compared to other treatments. The farmers got benefit from sailing jackfruit as the yield increased.

Knowledge Management: Journal