اثر رژیم غذایی حاوی گرده گیاهان مختلف بر پارامترهای جدول زندگی زنبور پارازیتوئید Habrobracon hebetor (Say) (Hym.: Braconidae) در شرایط آزمایشگاهی

Due to the excessive use of pesticides and chemicals, pest resistance to insecticides is one of the most important issues that has led to the use of biological control method in the farms, which, in addition to preventing pest resistance, improves environmental issues. Habrobracon hebetor (Say) (Hymenoptera: Braconidae) is a polyphagous and gregarious-ectoparasitoid that can parasitize the larvae of some lepidopteran pest species. So far, the effect of temperature, relative humidity, adult insect’s nutrition, host species, host size and host densities have been investigated on the biology and ecology of H. hebetor parasitoid. In this research, the effect of various diets containing plant pollens was investigated on the life table parameters of the H. hebetor at 26 ± 2°C, 65 ± 5% RH, and a photoperiod of 16:8 (L:D) h. This experiment was conducted in seven treatments with four replications. Diets used in treatments include water (control), honey, vitamin C and pollens of rapeseed, apple, peach, almond, date and honeybee. According to the obtained results of analysis of variance, amounts of intrinsic rate of increase (rm), gross reproduction rate (GRR), net reproduction rate (R0) and doubling time (DT) in different diets showed a significant difference. The intrinsic rate of natural increase (rm) of H. hebetor was significantly higher when diet containing almonds pollen (0.065 ± 0.003 d-1) were served as diet compared to other. The maximum amount of grass reproduction rate (GRR) and net reproduction rate (R0) related to the date pollen diet (3.38±0.32 and 2.61±0.39 per generation). The minimum population doubling time (DT) was related to the almonds pollen diet (10.58 ±0.6 d). This study showed that the diet containing almond and date pollens are more suitable for mass rearing of parasitoid wasp.