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

Deformities Produced by Some Plant Powders in Rhyzopertha Dominica (f.) (coleoptera: Bostrichidae)

Nur Mohal
Institute of Biological Sciences, Department of Zoology, University of Rajshahi, Rajshahi 6205, Bangladesh

W Islam
Institute of Biological Sciences, Department of Zoology, University of Rajshahi, Rajshahi 6205, Bangladesh

K AM S H Mandal
Rajshahi Govt. New Degree College, Rajshahi 6000, Bangladesh

S Parween
Rajshahi Govt. New Degree College, Rajshahi 6000, Bangladesh

Abstract/ Executive Summary:

The larval feeding of Rhyzopertha dominica (F.) on whole wheat grains treated with dry leaf powder of Murrya paniculata L., Jatropha curcas L. (Jack), Datura metel L., Eucalyptus camaldulensis Dehn. and Virtex negundo L. and seed powder of Nigella sativa L. produced abnormalities in larval, pupal and adult stages at doses 2.5, 5 and 10 mg/ g in case of all leaf powder treatments and the effect was more distinct at higher doses. Compared to leaf powders seed powder of N. sativa was more effective, however, the deformities responded in the larval, pupal and adult stages were more or less similar in case of all the plant products. The percentages of deformities produced differed significantly among the doses (p<0.001, F=5.10) of different plants (p<0.001, F =3.89).

Keywords: Deformities, R. dominica, Plant powders

Location: Institute of Biological Sciences, Department of Zoology, Rajshahi University

Start Date: 01-01-2000

End Date: 30-06-2001

Program Area: Pest Management

Commodity: Insects

Objectives:

To observe any abnormalities produced in the lesser grain borer, Rhyzopertha dominica (F) due to feeding on food mixed with seed/ leaf powders of some plants.

Methodology:

Dry leaf powder of Murrya paniculata L., Jatropha curcas L. (Jack), Datura metel L., Eucalyptus camaldulensis Dehn. and Vitex negundo L. at a dose of 2.5, 5 and 10 mg/g were mixed separately with wheat grains. Seed powder of Nigella sativa L. were used at a dose 1, 2 and 4 mg/ g . One hundred newly hatched larvae of R. dominica were released on each dose of each plant powder treated wheat. Similar number of neonates was released on untreated wheat as control. After emergence, the adults were observed carefully, while types of deformities were recorded and the numbers of deformed adults were noted. The grains from which adults were not emerged, were dissected carefully, and the life stage of the insect inside the grain were examined for abnormal characteristics. The experiments were replicated four times four each dose/ each plant and control. The experiments were conducted at room temperature 30 ± 1 ?.

Source of Information: JOURNAL OF BIO-SCIENCE, THE INSTITUTE OF BIOLOGICAL SCIENCES RAJSHAHI UNIVERSITY, Vol. 14, 2006, pp. 69-72, ISSN 1023–8654.

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Larval feeding on the treated wheat produced abnormal characters at larval, pupal and adult stages. Highest percentage of deformity was found against N. sativa seed powder compared to other plant products, which differed significantly among the doses (P<0.001, F=5.1 0) of different plants (P<0.001, F=3.89). In the present study all the materials produced similar deformed individuals at larval, pupal and adult stages of R. dominica. The highest percentage of deformities was obtained in case of the seed powder of N. sativa treated wheat and the lowest in case of J. curcas treated wheat. The deformed larvae and pupae were failed to metamorphose into adults. The undersized and underweight adults with deformed wings and produced ovipositor were found unable to mate properly and also failed to survive long.

Knowledge Management: Journal