STUDY ON THE BIOLOGY OF CIGARETTE BEETLE, LASIODERMA SERRICORNE (F.) AND ITS DAMAGE ASSESMENT IN DIFFERENT SPICES

Abstract

Two experiments were conducted to study the biology of cigarette beetle, Lesioderma serricorne (F.) and its damage assessment in different spices in the laboratory of the department of Entomology, Sher-e-Bangla Agricultural University, Dhaka-1207 during March to July, 2015. Experiments were laid out in a Completely Randomized Design (CRD). In the study of biology, it was revealed that the adult female laid 112- 160 eggs with an average of 138.80 eggs and the ovipositional period, incubation period, larval period, pupal period and adult longevity of Cigarette beetle were 4.00 ± 0.02 days, 6.67 ± 0.03 days, 14.00 ± 0.09 days, 8.33 ± 0.03 days and 9.67 ± 0.05 days, respectively. fenugreek (Methi), coriander (Dhania), cumin (Jira), fennel (Mouri), celery (Rhadhuni), carom (Ajowan) and Dried red chilli were used as experimental materials in the second experiment. The experiment concerning damage assesment of the above spices by cigarette beetle, indicated that the adult longivity, larval and pupal duration and adult emergence of cigarette beetle was varied in different spices. The study revealed that the percent infestation was highest in cumin 25.67 %, 66.43% and 100% at 1st, 2nd and 3rd generations, respectively and no infestation occured in celery (Radhuni) and carom (Ajowan) spices.