The effect of low and highly temperature degree on red rust flour beetle Tribolium castaneum. (Tenebrionidae : Coleoptera)

Abstract

The study was carried out in the life sciences laboratory of Education College of Hawija for the purpose of studying the effect of low and high temperatures on rust red flour beetle Tribolium castaneum (Coleoptera: Tenebrionidae) . The results of the study showed that the lower thermal temperatures 0.0, -4, -5.0,-10.0 and10.15c caused the killing in the different phases of the red rust beetle in high proportions, while the moderately temperatures 10.0,15,20, 25,and 35c don’t killed any individual insect because most of these temperatures are in fact suitable for the life activity and effectiveness of the insect but, highly temperatures like, 50, 55,60, 65, 70, were caused highly mortality for red rust flour beetle that reached to 100%for all developmental stages ( larva, pupa, and adult ) during most exposure times.