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

Effect of Different Host Plants on Growth and Development of Epilachna Beetle

M.S. Hossain
Department of Entomology, Bangladesh Agricultural University, Mymensingh, Bangladesh.

A.B. KHAN
Department of Entomology, Bangladesh Agricultural University, Mymensingh, Bangladesh.

M.A. HAQUE
Department of Entomology, Bangladesh Agricultural University, Mymensingh, Bangladesh.

M.A.MANNAN
Department of Entomology, Bangladesh Agricultural University, Mymensingh, Bangladesh.

C.K. DASH
Department of Entomology, Bangladesh Agricultural University, Mymensingh, Bangladesh.

Abstract/ Executive Summary:

An experiment was conducted to study the effect of four different host plants viz., teasel gourd, bitter gourd, sponge gourd, and yard long bean on the growth and development of Epilachna dodecastigma Wied under laboratory condition. The number of eggs laid by female beetle was significantly highest feeding on teasel gourd leaves and lowest on yardlong bean leaves. Egg hatching was faster on yardlong bean and delayed on bitter gourd. The host plant, such as sponge gourd produced the large sized larvae, while large pupa and adult were developed by feeding teasel leaves. The smallest larvae, pupae, and adults were found on the consumption of yardlong bean leaves. Highest larval duration was found on sponge gourd followed by bitter gourd and yardlong bean. Both larval and adult food consumption was highest on teasel gourd and lowest on yardlong bean. Considering the biological characteristics and leaf consumption, the plant teasel gourd appeared to be the best host plant for E. dodecastigma.

Keywords: Host plant, Gowth and development, Epilachna dodecastigma, Leaf consumption.

Location: In the laboratory of Department of Entomology, Bangladesh Agricultural University (BAU), Mymensingh

Start Date: 00-07-2007

End Date: 00-10-2007

Program Area: Pest Management

Commodity: Insects

Objectives:

To determine the effect of leaves of four different plants as host on the growth and development of Epilachna beetle

Methodology:

The experiment was conducted to determine the effect of leaves of four different plants as host on the growth and development of Epilachna beetle in the laboratory of Department of Entomology, Bangladesh Agricultural University (BAU), Mymensingh during July to October 2007. The prevailing room temperature was 30±2°C with 80±5% R.H. Teasel gourd (Momordica dioica Roxb.), bitter gourd (Momordica charantia L.), sponge gourd (Luffa cylindrica) and yardlong bean (Vigna sesquipedalis) leaves were used as food. For supply of test insect, the adult beetles were collected from the host plants for maintaining the stock culture in the laboratory. Field collected adult beetles were sexed and confined in pairs in the Petri dishes (7.5 mm diameter) for mating and ovipositon. Fresh and healthy leaves of four host plants were separately supplied every day for them. After oviposition, adult beetles were transferred to different Petri dishes and the deposited eggs were kept undisturbed for hatching. Immediately after hatching, ten larvae were transferred to each Petri dish (7.5 mm) for rearing upto adult emergence. The newly emerged adults were again sexed and confined in pairs in Petri dishes for mating and laying eggs. This culture was maintained in order to avoid the effect of previous food plants on the biology of the test insect.From laboratory stock, the grubs immediately after hatching were transferred to previously marked Petridishes (9.0 em diameter) with the help of a soft camel hair brush. Moistened blotting papers were placed to cover the bottom of each petridish. One grub was reared in each Petridish. Fresh leaves of four different host plants were provided to the larvae at 24 hours interval in the morning and uneaten leaves along with faes:es were removed. The larvae were observed daily until pupation to record the ,number of larval instars and their duration.

Source of Information: Bangladesh J. Agril. Res. 34(3) : 395-401 , September 2009

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

. The smallest larvae, pupae, and adults were found on the consumption of yard long bean leaves. Highest larval duration was found on sponge gourd followed by bitter gourd and yardlong bean. Both larval and adult food consumption was highest on teasel gourd and lowest on yard long bean. Considering the biological characteristics and leaf consumption, the plant teasel gourd appeared to be the best host plant for E. dodecastigma.

Knowledge Management: Journal