Fig. 3.

a Intraguild predation of juveniles of Phytoseiulus longipes in the presence of an intraguild predator, an adult female P. macropilis. Entire discs contained eggs of either Tetranychus evansi or Tetranychus urticae and were either covered with web (grey bars) of the same species or without web (white bars). Shown are average numbers (+ s.e.) of juveniles of P. longipes preyed during 3 days. There was a significant difference in intraguild predation on leaf discs with and without web of T. evansi (***, P < 0.001), and no such difference on leaf discs with and without web of T. urticae (ns). There was a significant interaction between the presence of web and the species that produced the web. Without web (white bars), there was no difference in intraguild predation on leaves with eggs of T. evansi or T. urticae, with web, there was a significant difference. b Average egg production (+ s.e.) by the predator P. macropilis during the intraguild predation experiment per 3 days. Predators oviposited significantly more on leaf discs with eggs of T. urticae than on discs with T. evansi eggs (***, P < 0.001)