Determination of relationships between Cales noacki, 1907 (Hymenoptera: Aphelinidae) with Aleurothrixus floccosus Maskell, 1896 (Homoptera: Aleyrodidae)

Host-parasitoid relationship between citrus wooly whitefly, Aleurothrixus floccosus Maskell, 1896 (Homoptera: Aleyrodidae) and parasitoid, Cales noacki Howard, 1907 (Hymenoptera: Aphelinidae) was investigated in laboratory conditions. When all the immature stages of A. floccosus were given separately, it was observed that C. noacki could parasitized all the stages. However, the rate of the parasitization was the highest in the second larval stage (29.8%) and then in the third larval stage (21.8%). Also when all immature stages of A. floccosus were given together, C. noacki preferred the second larval stage (27.6%) and then the third larval stage (17.4%). The parasitoid females laid an average of 37.6 ± 1.17 eggs during their lifetime. C. noacki parasitized up to 50 individuals (78,4%) or below of whiteflies when the parasitoid was given with the number of 5, 10, 25, 50, 100 or 150 larvae of whiteflies in the second larval stage. It was defined that the parasitoid showed Holling’s type II functional response in different quantities of A. flocosus and the R2 value was to be quite high (0.967)