EFFECT OF INTEGRATED MANAGEMENT APPROACH FOR COMBATING ANGOUMOIS GRAIN MOTH (Sitotroga cerealella) POPULATION AT DIFFERENT GENERATION

Abstract

Effect of integrated management approach was studied for combating angoumois grain moth. Sitotroga cerealella (Olivier) at different generation in terms of adult emergence, adult longevity and population ratio during the period from March 2011 to September. 2011 in the Department of Entomology. Sher-eBangia Agricultural University. Dhaka. Bangladesh. The treatments of the studies were: Cleanliness of the storage including the container and premises (sanitation) + Use of dried neem kamel powder @ 10 gmJkg (T,); Cleanliness of the storage including the container and premises (sanitation) + Use of dried tobacco leaves powder @ 5.0 gmJkg (T2); Sanitation + use of insecticide in the empty bins as preventative measure + Use of dried neem kamel powder @ 10 gmJkg (T); Sanitation + use of insecticide in the empty bins as preventative measure + Use of dried tobacco leaves powder @ 5.0 gmlkg (T,); Sanitation + Release of Trichogramma evanescense after 30 days interval (number of Trichogramma = lOO/plastic container or replication (Ts): Sanitation + Application of fumigant practice with phosphine gas with doses depending on the temperature and humidity and the pest population (To) and Untreated control (T,). The study was laid out in a Completely Randomized Design (CRD) with four replications. In I" generation no adults emerged in To treatment which was followed by T, (9.67) whereas the highest (38.00) adult was recorded in T, (untreated control) treatment. Similar trend of adult emergence was observed in 2"" generation and 3'd generation of the pest. In I" generation no adult longevity was recorded in To treatment whereas the highest (10.00 days) adult longevity was recorded in T, treatment. Statistically significant variation was recorded for number of female. male and their ratio for I st. 2"" and 3'd generation of angoumois grain moth in stored rice grain due to integrated management approaches.