Effect of Temperature, Population Density and Sexual Index on the Development and Reproduction of Callosobruchus maculatus (F.)(Coleoptera: Bruchidae)

Authors : Fatma Nur ELMA, Hüseyin ÇETİN

Pages : 22-26

View : 19 | Download : 18

Publication Date : 2017-07-31

Article Type : Research Paper

Abstract :Callosobruchus maculatus insert ignore into journalissuearticles values(F.);, a ubiquitously distributed pest, is of great economic significance owing to its capacity of feeding on various legumes. In this study, effects of temperature, population density and sexual index to C. maculatus were investigated. The temperature experiments were carried out at three different temperatures insert ignore into journalissuearticles values(25, 30 and 35°C);, 55±5% relative humidity and dark conditions. Adult emergence of C. maculatus was maximum at 30°C insert ignore into journalissuearticles values(74%);. The developmental time from egg hatching to adult emergence of C. maculatus was the shortest at 30°C and was found as 21.5 days. Moreover, effects of population density and sexual index on the number of egg laid perfemalewere investigated in the study. When the population density was 16 adults/petri dishes insert ignore into journalissuearticles values(8 females/8 males);, the number of laid per female was the highest insert ignore into journalissuearticles values(73 eggs);. Sexual index was maximum at 1/1 insert ignore into journalissuearticles values(female/male); ratio as 70 eggs.
Keywords : Callosobruchus maculatus, Sıcaklık, Popülasyon Yoğunluğu, Cinsiyet Oranı, Gelişme