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Effect of Coffee on the Growth and Development of the Red Flour Beetle, Tribolium Castaneum (herbst) (coleoptera: Tenebrionidae)

Md. Mostakim
Department of Zoology, University of Rajshahi, Rajshahi-6205, Bangladesh.

Ataur Rahman Khan
Department of Zoology, University of Rajshahi, Rajshahi-6205, Bangladesh.

Abstract/ Executive Summary:

Effect of various concentrations of coffee, Coffea arabica, viz. 12.50%, 25% and 50% on the growth and development of the red flour beetle, Tribolium castaneum (Herbst) was determined. Coffee lengthened the larval and pupal periods significantly. There was also a significant reduction in the pupal recovery and adult emergence of the beetle following treatment. The food with 50% coffee had the most detrimental effects on the beetle. Coffee extract could be used as useful botanical pesticide for controlling red flour beetle.

Keywords: Coffee, Tribolium castaneum, Growth, Development.

Location: Department of Zoology, Rajshahi University

Start Date:

End Date:

Program Area: Pest Management

Commodity: Insects

Objectives:

To studying the effect of coffee on the growth and development of T. castaneum, which seemed important from the point of nutritional regulation of the pest.

Methodology:

Adults of T. castaneum were collected from the stock culture of the Department of Zoology, Rajshahi University. A large number of beetles were put on a thin film of whole meal flour previously passed through a 60 micrometer mesh sieve in a beaker for egg collection. Eggs were collected by sieving the flour and were incubated at 29 ± 2 ⁰C in a Petri dish for hatching of the larvae. Fresh wheat flour mixed with brewer’s yeast powder (19:1) were used as experimental food media. Twelve plastic bottles each with 50 gm of the food media were taken and marked as groups 1-4, each having 3 bottles. Bottles of group 1, was used as untreated control, i.e. no coffee was added, respectively. In each bottles of group 2-4, 12.5, 25 and 50% coffee (by weight) was added. About 30 newly hatched larvae were distribution in each bottle. Each plastic bottle was covered with a piece of cloth and kept at room temperatures of 29 ± 2 ⁰C. Growth of the larvae was assessed at two stages: 10 days after treatment cleaned at maturity (18-day old). Ten day old larvae were collected by sieving, washed from adhered flour particles and were weighed (three larvae at a time because of their lower weight) on an electronic balance (ADAM, Japan). Similarly, mature larvae were collected and individually weighed. The larval period was noted and freshly formed pupae were weighed and counted, and placed in separate Petri dishes for adult emergence. The pupal period was recorded. Freshly eclosed adults were weighed and counted for each food. The co-efficient of variation (CV) and growth indices (G.I.s) of T. castaneum at different treatments were calculated. Growth indices (G.I.s) of T. castaneum on different food media were also calculated.

Source of Information: Bangladesh J. Zool. 42(2): 211-216, 2014

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Coffee lengthened the larval and pupal periods significantly. There was also a significant reduction in the pupal recovery and adult emergence of the beetle following treatment. The food with 50% coffee had the most detrimental effects on the beetle. Coffee extract could be used as useful botanical pesticide for controlling red flour beetle.

Knowledge Management: Journal