برخی خصوصیات زیستی کنه شکارگر Amblyseius swirskii (Acari: Phytoseiidae) با دریافت رژیم غذایی تخم کنه تارتن دولکه‌ای Tetranychus urticae (Acari: Tetranychidae)

Amblyseius swirskii (Athias-Henriot) is considered as a generalist predator that consumes small pests, pollen and honeydew and has attracted lots of interests due to biological control programs of mites, thrips and whiteflies in greenhouses. Here, during a study on the effect of different diets on the biological traits of A. swirskii, we recorded the biological and behavioural traits of the predator receiving the diet consisted of 10 same aged Tetranychus urticae daily on bean leaves (var. Red Alamouti). The same-aged female predator individuals, 7-hours starved, were introduced to experimental patches included 3 × 3 cm2 bean leaves put upside down on water saturated sponge in Petri dishes, 6 cm in diameter. The diet source consisted of 10 eggs of spider mite, one day age, prior to predator introduction. Monitoring was performed once every 5 minutes for 4 hours, recording the first successful attack and once every 4 hours for 6 days in order to record the developmental times. Each experiment replicated 13 times. Data analysis did within SPSS 27, through One Sample t Test. The mean time for the first successful attack and the first egg laid were calculated as 0.43 ± 0.08 and 0.77 ± 0.10 respectively. The mean time recorded for hatching was estimated as 1.83 ± 0.10. The mean larval, protonymphal and deutonymphal periods were calculated as 0.98 ± 0.11, 2.66 ± 0.09 and 1.65 ± 0.12. Further diet-based biological investigations are in progress.