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Integrated Crop Management to Control Anthracnose (colletotrichum Gloeosporioides) of Mango

M. N. A. Chowdhury
Spices Research Center, Bangladesh Agricultural Research Institute, Shibganj, Bogra, Bangladesh

M. A. Rahim
Department of Horticulture, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

Abstract/ Executive Summary:

An experiment was conducted to develop an Integrated Crop Management (ICM) practice for controlling anthracnose (Colletotrichum gloeosporioides) of mango with emphasis on non-chemical means and achieving higher yield. The treatments were T₁= Pruning (P) + Weeding (W) + Spading (S) + Fertilizer application + Garlic Extract (3 times) + Irrigation (14 days interval); T₂ = P+W+S + Fertilizer application +GE (2 times) + Dithane M-45 (one time) + Irrigation (14 days interval); T₃ = P+W+S + Fertilizer application + Bagging (60 days before harvest) + Irrigation (14 days interval); T₄ = P+W+S + Fertilizer application + Dithane M-45 (3 times) + Irrigation (14 days interval) and T₅ = Control (Untreated). It was found that T₄ treated plant resulted the highest (14%) fruit retention per plant followed by T₁ (13.75%). The lowest (8.50%) was obtained from T₅ (control) at 60 DAFS. Treatments T₄ and T₁produced the highest percentage (94 and 92, respectively) of healthy fruits and the lowest (86%) was obtained from T₅ (control). The highest yield was obtained from T₄and T₁ treatment (18.88 and 17.47 t/ha, respectively) and the lowest (4.48 t/ha) was found in T₅. The highest (26.50) soluble solid was obtained form treatment T₄followed by T₁ (25.75) and the lowest (24.00) was recorded from T₅. The highest disease incidence and severity was found in T₅ (66.67% and 3.00%, respectively).

Keywords: Mango, Integrated management, Anthracnose, Yield

Location: BAU, Mymensingh

Start Date: 00-07-2002

End Date: 00-07-2003

Program Area: Pest Management

Commodity: Mango

Objectives:

To develop a package of technologies for controlling mango anthracnose.
To increase the yield and quality of mango per unit area of land.
To reduce it’s cost of production.

Methodology:

The investigation was carried out from July 2002 - July 2003 at Germplasm Centre (GPC), Fruit Tree Improvement Project (FTIP), Department of Horticulture, BAU, Mymensingh. The single-factor experiment was conducted in randomized complete block design (RCBD) with 4 replications. The treatments were T₁ = Pruning (P) + Weeding (W) + Spading (S) + Fertilizer application (CD-10 Kg, urea-250g, TSP-250g, MP-350g, Gypsum- 100g and Zinc sulphate-10g/plant) + Garlic Extract (3 times) + Irrigation (14 days interval); T₂ = P+W+S + Fertilizer application (CD-10 Kg, urea-250g, TSP-250g, MP-350g, Gypsum- 100g and Zinc sulphate-10g/plant) +GE (2 times) + Dithane M-45 (one time) + Irrigation (14 days interval); T₃ = P+W+S + Fertilizer application (CD-10 Kg, urea-250g, TSP-250g, MP-350g, Gypsum- 100g and Zinc sulphate-10g/plant) + Bagging (60 days before harvest) + Irrigation (14 days interval); T₄ = P+W+S + Fertilizer application (CD-10 Kg, urea-250g, TSP-250g, MP-350g, Gypsum- 100g and Zinc sulphate-10g/plant) + Dithane M-45 (3 times) + Irrigation (14 days interval) and T₅ = Control (Untreated). The variety was Amrapali and spacing was 2.5m x 2.5m. The name of the plant extract is Garlic (Alliun sativum). Ten gram of sample was taken in an electric blender and 100 ml distilled water was added. The concentration was 1:10. The content was macerated and a suspension prepared. The suspension of plant extracts was sprayed individually by hand sprayer. Pruning, weeding and spading were done after fruit harvest, before flowering and after fruit sets. Irrigation was applied following basin method @ 50 litre of water per plant according to treatment. After harvest ten fresh fruits were selected randomly from each treatment for post harvest study. Disease incidence and severity was calculated at 6, 8 and 10 days after harvest. Horsfall and Barratt (1945) grading scale was used for calculating severity. The recorded parameters were fruit retention per plant (%); total number of healthy fruits per plant (%); total number of diseased fruits per plant (%); disease incidence (%); % surface area infected per fruit; fruit weight (g) Fruit size (cm); Yield/plant; yield (t/ha) and total soluble solids (TSS). The benefit-cost ratio (BCR) analysis was done. The collected data were tabulated and analyzed by a statistical program MSTAT-C.

Source of Information: J Agric Rural Dev 7(1&2), 115-120, June 2009 ISSN 1810-1860

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

It was found that T₄ treated plant resulted the highest (14%) fruit retention per plant followed by T₁ (13.75%). The lowest (8.50%) was obtained from T₅ (control) at 60 DAFS. Treatments T₄ and T₁ produced the highest percentage (94 and 92, respectively) of healthy fruits and the lowest (86%) was obtained from T₅ (control). The highest yield was obtained from T₄and T₁ treatment (18.88 and 17.47 t/ha, respectively) and the lowest (4.48 t/ha) was found in T₅. The highest (26.50) soluble solid was obtained form treatment T₄ followed by T₁ (25.75) and the lowest (24.00) was recorded from T₅. The highest disease incidence and severity was found in T₅ (66.67% and 3.00%, respectively).

Knowledge Management: Journal