Study On Some Possible Factors In Occurrence Of Colony Collaps Disorder In Ilam

This project has been done in three different seasons (spring, summer and autumn) in apiaries in Ilam. Ilam city has 280 apiaries (65% of total apiaries in province). In each season the sampling was achieved in 30 apiaries (450 colony). The rate of infestation of varroa in spring, summer and autumn were 16.6%, 30 and 26.6% respectively. The rate of infection to Nosema were 26.6%, 13.3 and 3.3 percent in mentioned seasons respectively. The parasites Acarapis woodi, Malpighamoeba mellificae and Gregarines were not seen in these samples. 13 out of 30 apiaries had CCD signs. 9 out of 13 apiaries (69.23%) with CCD were infected to Nosema spore and 4 apiaries (30.7%) were infested to Varroa destructor. 2 apiaries had no any parasitic infections. The most important of pests in these apiaries were as green bird cassock, waxmoth, wasps. In this study the apiaries were infected to Varroa destructor and Nosema, which are the most important parasites in honey bees that cause serious damage annually in the world. There was a significant relation between CCD and Parasite agents (p= 0.0005).