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Management of Insect Pests in Tomato (solanum Lycopersicuml.) Under Different Planting Dates and Mechanical Support

Sultana Afreen
Dept. of Entomology, Sher-e-Bangla Agricultural University, Dhaka-1207

Md. Mizanur Rahman
Dept. of Entomology, Sher-e-Bangla Agricultural University, Dhaka-1207

Md. Mizan Ul Islam
Genetics & Plant Breeding, BRAC Agricultural Research and Development Centre, Gazipur-1701

Monjur Hasan
Vegetable Division, BRAC Agricultural Research and Development Centre, Gazipur-1701

A. K. M. Sajjadul Islam
Hybrid Rice Division, BRAC Agricultural Research and Development Centre, Gazipur-1701, Bangladesh

Abstract/ Executive Summary:

The experiment was conducted at the Sher-e-Bangla Agricultural University, Dhaka during the Rabi Season 2013-14 to study the effects of different planting dates and mechanical support for the management of insect pests in tomato. The experiment was laid out in Randomized Complete Block Design (RCBD) with three replications consisted of nine treatments. Significant variations were found among the treatment. At early fruiting stage of tomato in number and weight basis, the highest percentage of infested fruit (10.65% and 10.99%) was recorded in T7 treatment, while the lowest (2.67% and 4.35%) in T5 treatment. At mid fruiting stage of tomato in number and weight basis, the highest percentage of infested fruit (11.92% and 12.62%) was recorded in T7 treatment, while the lowest (3.13% and 4.50%) in T5 treatment. At late fruiting stage of tomato in number and weight basis, the highest percentage of infested fruit (10.15% and 10.66%) was recorded in T7 treatment, whereas the lowest (2.22% and 4.21%) in T5 treatment.At total fruiting stage of tomato in number and weight basis, the highest percentage of infested fruit (10.93% and 11.43%) was recorded in T7 treatment, whereas the lowest (2.66% and 4.35%) in T5 treatment. The highest fruit yield (55.91 t ha^-1) was recorded in T5, whereas the lowest yield (45.39 t ha^-1) in T7 treatment. Planting at 10 December with the method of Horizontal mechanical support was more effective for reduction of insect pest of tomato and also for highest yield.

Keywords: Tomato, Fruit borer, Infestation, White fly, Yield

Location: Sher-e-Bangla Agricultural University farm, Sher-e-Bangla Nagar, Dhaka

Start Date: 00-11-2013

End Date: 00-04-2014

Program Area: Pest Management

Commodity: Tomato

Objectives:

The present research work has been undertaken to find out the most suitable planting date and mechanical support for avoiding insect pest of tomato to determine the most suitable planting date and mechanical support on the growth and yield of tomato.

Methodology:

The experiment was conducted in the field of Sher-e-Bangla Agricultural University farm, Sher-e-Bangla Nagar, Dhaka during the period from November 2013 to April 2014. BARI Tomato 5 was used as planting material. The experiment was consisted of nine treatments, i.e., T1:Planting at 25 November + No support, T2: Planting at 25 November + Horizontal mechanical support, T3: Planting at 25 November + Vertical mechanical support, T4: Planting at 10 December + No support, T5: Planting at 10 December + Horizontal mechanical support, T6: Planting at 10 December + Vertical mechanical support, T7: Planting at 25 December + No support, T8: Planting at 25 December + Horizontal mechanical support, T9: Planting at 25 December + Vertical mechanical support.The experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. The layout of the experiment was prepared for distributing all of treatments. Each experiment consists of total 27 plots of size 3.5 m × 2.0 m. The experimental field was partitioned into the unit plots in accordance with the experimental design.The sources of N, P2O5, K2O and H3BO3as urea, TSP, MoP and borax were applied, respectively. The entire amounts of TSP, MoP and borax were applied during the final land preparation. Urea was applied in three equal installments at 15, 30 and 45 days after seedling transplanting. Well-rotten cowdung 20 t/ha also applied during final land preparation. The amount of manures and fertilizers were used which shown as recommended by BARI (2011). Healthy and uniform tomato seedlings of 30 days old were transplanted in the experimental plots on 25 November, 10 December and 25 December, 2013 as per treatment. Seedlings were transplanted in the plot with maintaining distance between row to row 60 cm and plant to plant 40 cm. A number of seedlings were also planted in the border if the experimental plots require any gap filling. Data were recorded on the incidence of white fly and fruit borer at vegetative flowering and fruiting (early, mid, late) stage , infested and healthy fruit, plant height, number of leaves per plant, number of branches per plant, number of flower bunches per plant, number of flowers per bunch, single fruit weight and yield per hectare. Data on different parameters were compiled and tabulated in proper form for statistical analysis. “Analysis of variance” was done with the help of computer package MSTAT. The mean differences among the treatments were tested with Duncan’s Multiple Range Test (Gomez and Gomez, 1984).

Source of Information: J. Sci. Technol. Environ. Inform. 05(01): 336-346| Afreen et al. (2017)

Article Link (Online Journal): https://doi.org/10.18801/jstei.050117.36

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Planting at 10 December with the method of horizontal mechanical support was more effective for reduction of insect pest of tomato and also for highest yield which was followed by planting at 10 December with the method of vertical mechanical support.

Knowledge Management: Journal