خصوصیات رشدی مینوز گوجه‌فرنگی Tuta absoluta (Lepidoptera: Gelechiidae) با تغذیه از چند میزبان گیاهی

Tomato leafminer, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) is considered as one of the economic pests in potato and tomato cultivation areas and has high damage in greenhouses. This pest can feed on all parts of the plant and destroy the entire crop. In this research, the effect of several different plant hosts from the Solanaceae family including eggplant, potato, tomato and bell pepper on the biological characteristics of this pest were investigated under laboratory conditions, 25 ± 2 °C, relative humidity of 65 ± 5% and a photoperiod of eight hours of darkness and 16 hours of light. Experiments were conducted in rectangular containers (4 cm height, 8 cm length and 6 cm width). of six cm and it was found that different hosts can have significant effects on these parameters. The data obtained from this research were analyzed by the age-stage, two-sex life table procedure. Based on the results, different plant hosts had significant effects on the pest's measured parameters. The length of the immature period varied from 25.88 to 33.66 days. The shortest development time was observed in potato (25.88) and the longest one was observed in eggplant host (33.66). The longest oviposition period was observed in eggplant (18.04 day) and the lowest in tomato (16.15 day). The longest life span of female moths was recorded on eggplant (54.34 days) and the lowest value was recorded on tomato host plant (45.00 days). The lifespan of male moths on the eggplant had the highest value (50.00) when compared to other host plants. The survival rate of immature individuals in eggplant, potato and tomato was 70, 86 and 90%, respectively. All larvae hatched in bell pepper died on the first day after hatching. Considering the duration of the immaturity period, it can be said that tomato is the preferred host of this pest. According to the findings, it can be concluded that among the investigated host plants, bell pepper has the highest resistance and tomato has the highest sensitivity to T. absoluta in the Solanaceae family.