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Management of Fusarium Wilt of Tomato by Using Botanicals and Biocontrol Agents

K. M. Khalequzzaman
Senior Scientific Officer
RARS, Ishurdi, Pabna

M. R. Humauan
Scientific Officer
RARS, Ishurdi, Pabna

B. Akhter
Scientific Officer
RARS, Ishurdi, Pabna

Abstract/ Executive Summary:

The experiment was conducted at Regional Agricultural Research Station, Ishurdi, Pabna during 2010-11 to find out the effective botanicals and bio-control agents to control wilt of tomato. Botanicals, biocontrol agents, Provax and one control were used as treatments. The radial mycelial growth ranged from 0.00-38.33 mm, where the lowest was recorded in Provax, Trichoderma viride compost and Trichoderma harzianum broth and the highest was recorded in untreated control. Wilt incidence varied from 7.65-37.50%, while the lowest incidence was observed in soil amendment with Provax and the highest incidence was observed in untreated control. The highest no. of branches/plant (9.33), no. of fruit branches/plant (12.00), no. of fruits/plant (19.26), wt. of fruits/plant (365.94 g) and yield (30.55 t/ha) were recorded in soil drenching with Provax (2 g/liltre water) and the lowest of these parameters were recorded in untreated control.

Keywords: Tomato, Fusarium wilt, Botanicals, Bio-control agents

Location: RARS, Ishurdi

Start Date: 00-00-2010

End Date: 00-00-2011

Program Area: Pest Management

Commodity: Tomato

Objectives:

To find out the effective control of botanicals and bio-control agents to control wilt of tomato.

Methodology:

Laboratory experiment: The experiment was conducted at Plant Pathology Laboratory, RARS, Ishurdi, Pabna during 2010-11. leaf and plant extract of Neem, Garlic, Biskatali, Alamonda, Bel and Betel leaf were prepared in the laboratory. Neem oil was collected from Chapainababgonj, Trichoderma viride and Trichoderma harzianum were collected from NDS, Natore. Data on mycelial growth at 10 DAI was recorded and analyzed statistically following completely randomized design with five replications. The botanicals and boicontrol agents were also used in the field. Field experiment: The field experiment was conducted at RARS, Ishurdi, Pabna during 2010-11. BARI Tomato 3 was used in this experiment. The experiment was carried out following Randomized Complete Block Design with three replications. Size of the plots was 3.0 m X 2.0 m and plant spacing was 60 cm x 40 cm. Fusarial inoculum was mixed with soil before 2 weeks of plantation of Tomato for establishment of fungi. Tomato was planted on December 6, 2010. Thirteen different soil amendment were used viz. Neem leaf extract (1:5), Neem oil (0.5%), Garlic extract (1:5), Biskatali plant extract (1:5), Alamonda leaf extract (1:5), Bel leaf extract (1:5), Betel leaf extract (1:5), Trichoderma viride broth (1:5), Trichoderma harzianum broth (1:5), Trichoderma viride compost (1 t/ha), Trichoderma harzianum compost (1 t/ha), Provax (2 g/liltre water) and Control (Untreated). The treatments were applied in pits during crop plantation. Intercultural operations were done as per needed and to maintain the normal hygienic condition of crop in the field. Data were recorded on wilt, plant height, number of branches/plant, number of fruit branches/plant, number of fruits/plant, weight of fruits/plant and yield. The data were analyzed statistically and means were separated by Duncan’s New Multiple Range Test (DMRT).

Source of Information: Annual Report 2010-11, BARI

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Results on radial mycelial growth of Fusarium at 10 DAI by using botanicals and biocontrol agents indicated that the radial mycelial growth ranged from 0.00-38.33 mm, where the lowest was recorded in Provax, Trichoderma viride compost and Trichoderma harzianum broth and the highest was recorded in untreated control. Wilt was significantly influenced by the botanicals and biocontrol agents but plant height was not statistically different. Wilt varied from 7.65-37.50%, while the lowest incidence was observed in soil amendment with Provax and the highest incidence was observed in untreated control. Soil amendment with Trichoderma harzianum compost (1 t/ha) showed the highest plant height (62.78 cm) and soil amendment with Neem oil (0.5%) showed the lowest plant height (57.67 cm). Number of branches/plant, number of fruit branches/plant, number of fruits/plant, weight of fruits/plant and yield were significantly influenced by the botanicals and biocontrol agents. The highest number of branches/plant (9.33), number of fruit branches/plant (12.00), number of fruits/plant (19.26), weight of fruits/plant (365.94 g) and yield (30.55 t/ha) were recorded in soil drenching with Provax (2 g/liltre water) and the lowest of these parameters were recorded in untreated control.

Knowledge Management: Report/Proceedings