Diapause induction and termination in the predatory mite Euseius finlandicus in peach orchards in northern Greece.

摘要: The course of diapause induction as well termination infemales the predatory mite Euseius (Amblyseius)finlandicus Oudemans (Acari: Phytoseiidae) in Northern Greece wasdetermined by transferring females during winter and early spring from peachtrees to a short day (LD 8:16) or long 16:8) photoperiod both at 20°C. first were found mid September andby week October all diapause. mean numberof days required for under LD8:16 was gradually reduced 93.7 beginning lessthan 20 February March. Under ofLD 16:8 terminated less than irrespective dateof collection. These results indicate that photoperiodicsensitivity lost terminated. However, femaleswere their overwintering sites until second half March,probablybecause prevailing relatively low temperatures lack adequatefood.