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Development of Integrated Management Approaches Against Insect Pest Complex of Mungbean

M. Z. H. Prodhan
Senior Scientific Officer
Entomology Division, Regional Agricultural Research Station, BARI, Ishurdi, Pabna

M. Altaf Hossain
Senior Scientific Officer
Entomology Division, Regional Agricultural Research Station, BARI, Ishurdi, Pabna

Hosna Kohinur
Senior Scientific Officer
Pulses Research Centre, BARI, Ishurdi, Pabna

M. K. U. Mollah
Instructor
Agricultural Training Institute, Ishurdi, Pabna

M. H. Rahman
Scientific Officer
On Farm Research Division, Bangladesh Sugarcane Research Institute, Ishurdi, Pabna

Abstract/ Executive Summary:

An experiment was conducted at the field of Regional Agricultural Research Station (RARS), Bangladesh Agricultural Research Institute (BARI), Ishurdi, Pabna, during March to June 2008 to develop integrated management approaches against insect pest complex of mungbean. The management approaches tested in the study were T₁= Seed treatment with Imidachlorpid (5g/kg seeds) + Poultry manure (3t/ha) + Sequential release of bio-control agent (Trichograma chilonis + Bracon habetor) + Detergent @ 2g/l of water, T₂= Seed treatment with Imidachlorpid (5g/kg seeds) + Poultry manure (3t/ha) + Sequential release of biocontrol agent (Trichograma chilonis + Bracon habetor) +Neem seed karnel extract @ 50 gm/lof water, T₃= Seed treatment with Imidachlorpid (5g/kg seeds) + Poultry manure (3t/ha) + Spray with Quinalphos @ 1ml / l of water and T₄ = Untreated control. All the treatments significantly reduced insect’s infestation (except thrips) and produced higher yield compared to control. It was found that the highest yield was obtained from the treatment T₃ (1316 kg/ha) which was statistically similar to T₂ (1316 kg/ha) and T₁ (1283 kg/ha). In case of Benefit Cost Ratio (BCR), the highest value was obtained from the treatment T₃(1.84), which was followed by T₁ (1.55) and T₂ (1.31).

Keywords: Management approach, Insect infestation, BCR

Location: Field of Regional Agricultural Research Station (RARS), Bangladesh Agricultural Research Institute (BARI), Ishurdi, Pabna

Start Date: 00-03-2008

End Date: 00-06-2008

Program Area: Pest Management

Commodity: Mungbean

Objectives:

To develop integrated management approaches against insect pest complex of mungbean.

Methodology:

The experiment was conducted at the field of Regional Agricultural Research Station (RARS), Bangladesh Agricultural Research Institute (BARI), Ishurdi, Pabna, Bangladesh during March to June 2008. The experiment was consisted with four treatments. The treatments were –T₁= Seed treatment with Imidachlorpid (5g/kg seeds) + Poultry manure (3t/ha) + Sequential release of biocontrol agent (Trichograma chilonis + Bracon habetor) + Detergent @ 2g/l of water, T₂ =Seed treatment with Imidachlorpid (5g/kg seeds) + Poultry manure (3 t/ha) + Sequential release of biocontrol agent (Trichograma chilonis + Bracon habetor) +Neem seed karnel extract @ 50 gm/l of water, T₃ = Seed treatment with Imidachlorpid (5g/kg seeds) + Poultry manure (3t/ha) + Spray with Quinalphos @ 1ml/ 1 of water starting from the first incidence of pest (2 spray at ten days interval), T₄ = Untreated control. Procedure of seed treatment: Seeds were treated according to the procedure . A sticky soil with high clay content was obtained from tank bed, dried, powdered and sieved to get finer fractions. For treating, 200 g of mungbean seeds with 20g of the fine soil was taken in a plastic container. Then 10 ml of water, 3-4 drops of gum (sticker) and required quantity of Imidachlorpid (Gaucho) were added to this and stirred thoroughly. If necessary more water was added drop by drop and stirred well to get slurry. Lid of the container tightened properly and vigorously shaken about 30 seconds to get uniform coating of the slurry on the seeds. The seeds were then air dried in shade overnight and sown on next day. The experiments were laid out in RCB Design with three replications having plot size 10.0 × 10.0 m with an inter plot distance of 0.75 m and inter block distance of 1.0 m. Spacing of row to row and seed to seed was 30 cm and 10 cm, respectively. Seeds of mungbean (variety Barimung- 6) were sown. Soil was fertilized with Urea, Triple supper phosphate and Muriate of potash respectively, at the rate of 45, 100 and 58 kg/ha. All the fertilizers were incorporated in the soil during final land preparation. For stem fly infestation, ten randomly selected plants were uprooted from each plot and brought in the laboratory. Roots were cleaned to remove adhering soil, stems of each plant were dissected with a scalpel and observations of length of stem, length of tunnel and the number of larvae and pupae present in the stem were recorded. The number of stem fly infested plants in each sample was also recorded. In case of thrips, twenty flowers were carefully examined from each plot. The number of thrips was recorded. Regarding pod borer infestation, at harvest, 10 randomly selected plants from each plot were carefully uprooted to record the number of infested and healthy pod. The percentage of damaged pod was also recorded. The yield per plot was recorded and converted into yield per hectare. Data were analyzed statistically and the treatment means were separated by Duncan’s Multiple Range Test (DMRT).

Source of Information: J.Soil.Nature. 2 (3):37-39, 2008

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

All the treatments significantly reduced insect infestation (except thrips) and offered higher yield compared to control (T₄). The role of imidachlorpid and poultry manure in minimizing insects infestation have been claimed by a good number of entomologists which clearly supports the findings of present investigation. According to them seeds film-coated with imidachlorpid showed effective control of thrips on the seed bed of Allium porrum for twelve weeks and three weeks after transplanting which was closely agreement with the present investigation. They carried out research against the sucking insects using poultry manure on cotton and observed poultry manure significantly reduced the incidence of early sucking pest of cotton.

Knowledge Management: Journal