مقاومت گیاه توت فرنگی به عنوان راهکار کلیدی برای مدیریت کنه سیکلامن Phytonemus pallidus

Strawberry is a highly valued product that is rich in antioxidants. The cyclamen mite, Phytonemus pallidus Banks, is a common and significant pest in Iran that can cause significant damage to the strawberry crop in cold and damp conditions. In this study, we evaluated the resistance of seven different strawberry cultivars (Camarosa, Sabrina, Albion, Paros, Gaviota, Selva, and Ventana) on the biological characteristics of the cyclamen mite, P. pallidus, under laboratory conditions at 25±1 °C, 65±5% RH, and a photoperiod of 16:8(L:D). Our findings revealed that the duration of the pre-adult stage of the cyclamen mite varied significantly depending on the cultivar. The longest period was observed on the Paros cultivar (9.21 days), while the shortest period was recorded on Albion (8.16 days). The longest adult longevity was recorded on the Gaviota cultivar, which was 10.79 days. However, there was no significant difference in adult longevity between other cultivars. The highest fecundity rate was observed on Gaviota (17.02 eggs/female). In contrast, the lowest fecundity rate was recorded on Albion (11.37 eggs/female). The population growth parameters of the cyclamen mite were also affected by the cultivars, as the highest intrinsic rate (r) and finite rate (λ) of population increase were found on the Sabrina cultivar (0.164 and 1.178 day-1, respectively),while the lowest values were on Paros (0.129 and 1.137 day-1, respectively). The mean generation time (T) was found to be significantly shorter on the Sabrina, Camarosa, and Albion than other ones. The shortest T was observed in Sabrina (13.95 days), while the longest was observed on Ventana (15.38 days). Overall, the results suggested that the Sabrina was the most suitable for the cyclamen mite among cultivars, while Paros was the least suitable.