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Integrated Management of Cercospora Leaf Spot of Indian Spinach in the Southern Region (2015 - 2016)

M. Z. RAHMAN
RARS, Rahmatpur, Barisal

Abstract/ Executive Summary:

The experiment was conducted at RARS, Rahmatpur, Barisal during 2014-2015. Management of Cercospora leaf spot of Indian spinach was conducted by Hot water treatment (100-104^oF/10 min) of seeds, Seed treatment with Provax200 (Carboxin + Thiram) @ 0.2 % and spraying with Score 250 EC (Difenoconazole) (0.1%), Seed treatment with Trichoderma strain, Spraying with PRH (a Japanese plant hormone), Seed treatment with Provax200 (Carboxin + Thiram) @ 0.2 % and removal of diseased leaf, Seed treatment and spraying with Bavistin DF (Carbendazim) @ 0.1%, hot water treatment and spraying with Filia 525 SE (Tricyclazole + Propiconazole) @ 0.1 %, and Spraying with Cuprafix (Cu + Mancozeb) @ 0.2% under natural infection condition. From this experiment, it was found that seed treatment with Provax200 (Carboxin + Thiram) @ 0.2% and two sprays of Score 250 EC (Difenoconazole) @ 0.1% effectively control the cercospora leaf spot on Indian spinach.

Keywords: Indian spibach, Cercospora leaf spot, Management

Location: The experiment was conducted at RARS, Rahmatpur, Barisal

Start Date: 00-00-2014

End Date: 00-00-2015

Program Area: Pest Management

Commodity: Indian spinach, Diseases

Objectives:

The present investigation was undertaken to manage the disease of Cercospora leaf spot of Indian spinach .

Methodology:

The experiment was conducted at Regional Agricultural Research Station, Rahmatpur, Barisal, 2014-2015. The design was RCB having 3 replications. The variety was used BARI Puisak-2. The sizes of the plots were 4.0 m x 2.5 m. The experiment was conducted under natural infection conditions. Recommended doses of fertilizers (Cow dung 40 Kg, Urea 700 g, TSP 500 g, MoP 500 g, and Zinc sulphate 50 g, per decimal) were used. The 9 treatments including control were viz.Hot water treatment (100-104^oF/10 min) of seeds, Seed treatment with Provax200 (Carboxin + Thiram) @ 0.2 % and spraying with Score 250EC (Difenoconazole) (0.1%), Seed treatment with Trichoderma strain, Spraying with PRH (a Japanese plant hormone),Seed treatment with Provax200 (Carboxin + Thiram) @ 0.2 % and removal of diseased leaf, Seed treatment and spraying with Bavistin DF (Carbendazim) @ 0.1%, Hot water treatment and spraying with Filia 525 SE (Tricyclazole + Propiconazole) @ 0.1 %, and Spraying with Cuprafix (Cu + Mancozeb) @ 0.2%. Two sprays were given at an interval of 10 days after the first disease appear. Disease data were recorded before every spray using a 0-5 rating scale given by Huq et al (1994). Percent disease index (PDI) was computed from the final data, percent disease data (PDI) was computed on the basis of the formula according to Krishna Prasad et al., 1979 described as below:

Σ (Class rating X class frequency)

PDI = ------------------------------------------------------------------------------ X100

Total number of leaves counted X maximum rating value

Source of Information: Annual Research Report 2015-16, Plant Pathology Division, BARI, Gazipur

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

From the findings of the present study, it was found that seed treatment with Provax200 @ 0.2% and two sprays of Score 250 EC @ 0.1% can effectively control the cercospora leaf spot on Indian spinach.

Knowledge Management: Report/Proceedings