پارامترهای دموگرافی شب‌پره مینوز گوجه‌فرنگی Tuta absoluta (Meyrick) با تغذیه از ارقام مختلف گوجه‌فرنگی

Tomato (Solanum lycopersicum L.) ranks fourth in production among the most important vegetables. Among its pests, tomato leaf miner (TLM), Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) is one of the noxious pests. TLM-Infested tomato-producing regions have increased from 3% to 60% over the last 10 years. Using pesticides not only causes environmental pollution and decreases its natural enemies, but also encourages the emergence of secondary pests and pesticides-resistant TLM. In this study, effect of feeding on leaves of five common tomato cultivars in Bushehr provience including TD, Karon, Petoprid, Matin and 8320 on life table parameters of this pest investigated under laboratory conditions (27.5 ± 1 ° C, 65 ± 5 RH%, 16:8 L:D) to introduce TLM-resistant and susceptible cultivars using complete randomized design. The moths were reared on tomato cultivars for two generations before the start of experiment. After calculation of these parameters based on Carey equations, obtained pseudo–value data with Jackknife approach subjected to analysis of variance using SPSS software. Results revealed that the most and least value of net reproductive rate (R0) were belonged to Karon (62.15) and Matin (21.33) (female offspring/female), respectively. The intrinsic rate of increase (r) of pest reared on theses cultivars were 0.1461, 0.1779, 0.1381, 0.1114 and 0.1689 female offspring/female/day, respectively. The highest finite rate of increase (λ) with significant differences with other cultivars, was related to Karon cultivar (1.1947). The shortest and longest doubling time (DT) were obtained on Karon (3.90 day) and Matin (6.22 day), respectively. Results showed that among these cultivars, Karon and Matin are the most sensitive and resistant cultivars to tomato leaf miner, respectively. Using resistant cultivars and integration with other approaches such as biological control can lead to more accurate pest management and reduce using harmful chemical pesticides.