Effects of different regimes of photoperiod and temperature on biology of Callosobruchus maculatus (Col., Bruchidae)

Subject Areas : entomology and othea arthropods

H.  Rezaei ¹ (Department of Entomology, Faculty of Agriculture, Islamic Azad University, Arak Branch, Arak, Iran)
SH.  Goldasteh ² (Department of Entomology, Faculty of Agriculture, Islamic Azad University, Arak Branch, Arak, Iran)
E.  Sanatgar ³ (Department of Entomology, Faculty of Agriculture, Islamic Azad University, Arak Branch, Arak, Iran)
S.  Beigy ⁴ (Agriculture Organization of Ilam)

Received: 2012-01-28 Accepted : 2012-11-18 Published : 2013-05-22

Keywords:

Abstract :

Callosobruchus maculatus Pic. (Col., Bruchidae) is one of the main pests inside the stores and farms. The effects of light (absolute darkness and light) and temperature (20, 25 and 30◦C) on growth of C. maculatus were investigated. The experiment was conducted in 6 treatments using a factorial completely randomized design. The results showed that females under the conditions of 30ºC and complete darkness, the life stages of the pest passed in 40 days and under the conditions of 20ºC and complete light, the life stages passed in 86 days. The pre-adult period of females was 78.09 days under 20ºC and complete light, but it was 22 days in 30ºC and compelet darkness.