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

Evaluation of Insecticides for the Management of Jute Hairy Caterpillar, Spilosoma Obliqua Walk. (lepidoptera: Arctiidae) in Jute (corcorus Olitorius)

Md. Sohanur Rahman
Scientific Officer
Department of Entomology, Pest Management Division, Bangladesh Jute Research Institute, Dhaka, Bangladesh

Islam MN,
Pest Management Division, Bangladesh Jute Research Institute, Dhaka, Bangladesh

Talukder FU,
Pest Management Division, Bangladesh Jute Research Institute, Dhaka, Bangladesh

MT Sultan
In-charge, Jute Research Sub-station, Patuakhali, Bangladesh Jute Research Institute, Dhaka, Bangladesh

Abstract/ Executive Summary:

The experiment was carried out on roof at Entomology Department of Bangladesh Jute Research Institute (BJRI), Dhaka for the selection of dosages and in the field of two different locations viz. Jute Agriculture Experimental Station (JAES), Manikganj and Jute Research Sub-Station, Tarabo, Narayanganj for evaluation of four insecticides against jute hairy caterpillar during the jute growing season (April-July) 2019 following Randomized Complete Block Design (RCBD) with three replications. Heping 10WDG (Emamectin Benzoate), Lamtech 2.5 EC (Lambda cyhalothrin), Fair Kill 10 EC (Cypermethrin) and Key 70 WG (Imidacloprid 70 %) @ 750 gm/ha, 200 ml/ha, 550 ml/ha and 30 gm/ha respectively were found effective against jute hairy caterpillar giving 86.13, 81.51, 74.11, 76.39 percent reduction of infestation in Manikganj and 86.21, 82.32, 77.53, 78.64 percent reduction of infestation in Narayanganj respectively. Percent Reduction, plant height, base diameter, fibre weight and stick weight were found highest in the plot treated with Heping 10WDG (Emamectin Benzoate) and the lowest was found in control plot. The degree of statistical relationship between percent reduction and fibre weight; fibre weight and stick weight in both locations have been found significant relationship at 5 % level of probability. All tested insecticides can be recommended for controlling jute hairy caterpillar and in respect of higher yield contributing characters.

Keywords: Jute, Jute hairy caterpillar, Insecticides, Effectiveness, Yield contributing attributes

Location: Jute Agriculture Experimental Station (JAES), Manikganj and Jute Research Sub-Station, Tarabo, Narayanganj

Start Date: 01-04-2019

End Date: 01-07-2019

Program Area: Pest Management

Commodity: Insecticide

Objectives:

Experiments were under taken to test the effectiveness of four insecticides against jute hairy caterpillar in jute (Corcorus Olitorius).

Methodology:

The experiment was conducted at three different locations. Pot experiment was conducted on roof at Entomology Department of Bangladesh Jute Research Institute (BJRI) and field experiment was conducted at Jute Agriculture Experimental Station (JAES), Manikganj and Tarabo, Narayanganj during the jute growing season (April-July) 2019. Four insecticides of different generic group were used in this experiment which as follows
1. Heping 10WDG (Emamectin Benzoate)
2. Lamtech 2.5 EC (Lambda cyhalothrin)
3. Fair Kill 10 EC (Cypermethrin)
4. Key 70 WG (Imidacloprid 70 %)
5. Newril 85 WP (Carbaryl) was used as standard.

2.1 Pot experiment
Corcorus Olitorius Jute variety O-9897 was grown in earthen pot conducted on roof at Entomology Department of Bangladesh Jute Research Institute (BJRI), Dhaka. Seeds were sown in pot and pots were set following Randomized Complete Block Design (RCBD) with three replications . Five - six plants in each pot were allowed to grow. When the plant age was sixty, 3rd instar jute hairy caterpillar larva were collected from the jute field and released on the potted plants. Four insecticides such as Heping 10WDG (Emamectin Benzoate), Lamtech 2.5 EC (Lambda cyhalothrin), Fair Kill 10 EC (Cypermethrin) and Key 70 WG (Imidacloprid 70 %) at their respective doses were sprayed. Three different doses of each insecticide were tested for the fixation of the effective and economic dose. Control pots were kept untreated. Population of caterpillar/pot was recorded before spray and at 3rd and 5th day after spray. Data of % reduction at 5th day after spray were analyzed. Percent reduction of infestation over control was calculated following Abbott (1925) formula. Data were analyzed by Statistix 10 software and means were separated by LSD.
2.2 Field experiment
Two different locations viz. In JAES, Manikganj and substation, Tarabo, Narayanganj were selected to conduct field experiment. The jute variety O-9897 was grown in unit plot size of 2 x 2.1 m2 with three replications following RandomizedComplete Block Design (RCBD). Natural infestation of second and third instar of jute hairy caterpillar was allowed to build up in the plot [19]. Four different insecticides group along with one standard group insecticide such as Heping 10WDG (Emamectin Benzoate), Lamtech 2.5 EC (Lambda cyhalothrin), Fair Kill 10 EC (Cypermethrin), Key 70 WG (Imidacloprid 70 %) and Newril 85 WP @ 750 gm/ha, 200 ml/ha, 550 ml/ha, 30 gm/ha and 1.7 kg/ha respectively were sprayed after 60 days of sowing when sufficient infestation was found in the plot naturally. No insecticide was sprayed in control plots. The population of caterpillar in each plot was recorded before spray and at 3rd and 7th day after spray.Percent reduction of infestation over control was calculated.

Source of Information: International Journal of Entomology Research, Volume 5; Issue 4; 2020; Page No. 71-77

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Based on the findings of present research it can be concluded that all tested insecticides considering percent reduction of infestation over control (> 74.11%) and yield (>2.82 ton/ha) were more or less similar to the standard and better than control. Among the tested insecticides emamectin benzoate performed maximum reduction of infestation and contributed to significant yield production followed by Lambda cyhalothrin, Cypermethrin and Imidacloprid 70 %. So, all the insecticides can be recommended for the farmer’s use for management of jute hairy caterpillar at field level.

Knowledge Management: Journal