Agricultural Research Management Information System

Home
Research Summary
Search
About Us
- ARMIS
- Brochure
Contact Us
Report
User Request
Data Input
Help
- Operation Manual
  - PDF
  - Video
- Program Area & Commodity
We have reached 37600 number of research entries at this moment.

- Logout

Research Detail

Home
Research
Detail

Mutants and Weather Parameters Affecting the Population Dynamics of Three Major Insect Pests of Mungbean

M.M.H. Khan
Department of Entomology, Patuakhali Science and Technology University Dumki, Patuakhali-8602, Bangladesh.

M.M. Islam
Department of Entomology, Patuakhali Science and Technology University Dumki, Patuakhali-8602, Bangladesh.

M. Asaduzzaman
Department of Entomology, Patuakhali Science and Technology University Dumki, Patuakhali-8602, Bangladesh.

M.N. Uddin
Department of Agricultural Extension, Barisal, Bangladesh

Abstract/ Executive Summary:

The study was conducted to know the abundance of aphid, flea beetle and pod borer on the mutants viz., MBM-07-Y-1, MBM-07-Y-2, MBM656-51-2, MBM-527-114, MBM-07-(S)-2, MBM-347-13, MBM-390-94-Y, MBM-427-87-3, MBM-80 (Local) and a variety BARI moog-6 and the role of weather parameters on the population dynamics of insects at the Agricultural Farm of Patuakhali Science and Technology University from April to June, 2015. Results revealed that the tested mutants did not show resistance against aphid, flea beetle and pod borer. Mutant MBM347-13 had the lowest number of flea beetle while mutant MBM-427-873, MBM-80(LCAL) and MBM-527-114 had the highest number of flea beetle indicating higher susceptibility to flea beetle. Mutant MBM-390-94Y had the lowest abundance of aphid while BARI moog-6 had highest aphid abundance. Mutant MBM-347-13 had lowest number of pod borer and MBM-427-87-3 had highest abundance of pod borer followed by MBM-07 (S)-2 and BARI moog-6. Flea beetle abundance gradually increased with decreasing average temperature while aphid and pod borer abundance gradually increased with increasing average temperature. In case of humidity, flea beetle abundance increased very slightly with increasing average humidity but aphid abundance increased very slightly with increasing average humidity. Pod borer abundance was low with high average humidity and then increased slightly due to decrease of humidity and finally declined with increasing humidity.

Keywords: Aphid, Flea beetle, Pod borer, Vigna radiata, Temperature, Relative humidity

Location: At the Agricultural Farm of Patuakhali Science and Technology University

Start Date: 00-04-2015

End Date: 00-06-2015

Program Area: Pest Management

Commodity: Insects, Mungbean

Objectives:

The present research was undertaken to evaluate 9 mutants and a check variety of summer mungbean against aphid, flea beetle and pod borer under natural field condition and to know the impact of these mutants and weather parameters on the population dynamics of aphid, flea beetle and pod borer of mungbean.

Methodology:

The experiment was carried out at the Agricultural Farm of Patuakhali Science and Technology University during April to June, 2015. The area is covered Gangetic Tidal Floodplains and falls under Agroecological Zone “AEZ- 13”. The area lies at 0.9 to 2.1 metre above mean sea level. The experimental area experiences sub-tropical climate with high temperature and it decreased when the season proceeded towards rabi The climate was characterized by medium rainfall, high humidity and high temperature. Nine mutants viz., MBM-07-Y-1, MBM-07-Y2, MBM-656-51-2, MBM-527-114, MBM-07-(S)-2, MBM-347-13, MBM-390-94-Y, MBM-427-87-3, MBM-80 (Local) and a variety BARImoog-6 were used as study materials. The seeds were collected from Plant Breeding Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. The whole field was divided into 3 unit blocks and each unit block was divided into 10 unit plots. The treatments were randomly distributed in the plots within a block. The total number of plots were 30 and unit plot size was 3.0 m×2.0 m. The distance between two unit plots was 0.75m and between block to block was 1.0m. The seeds were sown on the 2^nd April, 2015 at the rate of 11 kg ha^-1. The seeds were placed in the line continuously at a depth of 6-7 cm and covered by loose soil by hand. Line to line distance was 30 cm. Urea (@ 50 kg ha^-1), triple superphosphate (@ 85 kg ha^-1) and muriate of potash (@ 35 kg ha^-1) were applied as the sources of N, P₂O₅ and K₂O, respectively. Whole amount of urea, TSP and MOP were applied in the field uniformly during the final land preparation. The plants were exposed to natural insect pests infestation and insecticide was not applied during the experimental. Data on different parameters were recorded at 37 and 47 days after sowing (DAS) aphid, at 14, 21 and 30 DAS for for flea beetle and at 50, 57 and 65 DAS for pod borer. Percentage of plant damaged by flea beetle was determined by eye estimation. The total number of infested and healthy plants or leaves was recorded from 15 randomly selected plants of each plot to determine the level of infestation by aphid and flea beetle. The total number of leaves was counted and percentage of flea beetle infested leaves was calculated. The percentage of pod infestation was calculated by observing 10 randomly selected plan. Statistical analysis Data were analyzed by using MSTAT software. Means were separated by using Duncan’s Multiple Range Test (DMRT). ts from each plot. During experimental period data on temperature and relative humidity (RH) were collected from the Patuakhali meteorological office.

Source of Information: SAARC J. Agri., 16(2): 1-12 (2018)

Article Link (Online Journal): DOI: https://doi.org/10.3329/sja.v16i2.40254

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Flea beetle abundance gradually increased with decreasing average temperature while aphid and pod borer abundance gradually increased with increasing average temperature. In case of humidity, flea beetle abundance increased very slightly with increasing average humidity but aphid abundance increased very slightly with increasing average humidity. Pod borer abundance was low with high average humidity and then increased slightly due to decrease of humidity and finally declined with increasing humidity.

Knowledge Management: Journal