مطالعه اثرات زیرکشندگی چند حشره کش‎هروی برخی فراسنجه های مختلف زیستی زنبور انگل‌واره Habrobracon hebetor Say, 1836 (Hymenoptera: Braconidae)

The wasp Habrobracon hebetor Say, 1836 (Hymenoptera: Braconidae) is one of the important parasitoids that is used for the biological control of moth larvae of the Pyralidae and Noctuidae families, including agricultural, garden and storage pests. In this study, the lethal effects of tetranylprole, flupyradifuran, flubendiamide and spirotetramat insecticides were studied by contact method on adult insects and dipping method on the parasitoid wasp pupa of H. hebetor. Parasitoid wasp rearing was carried out on the larvae of the mediterranean flour moth in a growth chamber with temperature conditions of 27 2, relative humidity 65 5 percent and photoperiod (16:8) hours of light and dark. According to the results, the net reproduction rate (R0) for tetranilyprole, flupyradifuran, flubendiamide, spirotetramate and control treatments was 50.25, 50.66, 64.72, 57.49 and 71.33 female/female/offspring, respectively. The intrinsic rate of population increase (rm) was 0.226, 0.240, 0.242, 0.238 and 0.259 female/female/generation, respectively, for tetranylprole, flupyradifuran, flubendiamide, spirotetramat treatment, the effects of poisons were observed by the method Demographic toxicology showed that spirotetramat compounds were the most toxic and tetranilyprole had the least toxicity for whole insects.
In the gross rate for treatments with control, tetranilyprole, flupyradifuran, flubendiamide and spirotetramate treatments, insect females were estimated at 84.86, 71.90, 63.68, 77.34, and 70.88, respectively. According to the results, there was a significant difference in the effects of insecticides on reproductive parameters in all treatments compared to the control. The longest and shortest time to double the population occurred in spirotetramate, tetranilyprole (2.90 days), and the control (2.66 days), respectively. Among the insecticides, flubendiamide had the least adverse effect on net and gross reproduction rates.
If field tests are conducted and these results are confirmed, it seems that flupyradifuran and flubendiamide insecticides can be suitable options for integrated management programs.