Developmental rates of the aphid Aphis pomi (Aphidoidea: Aphididae) and its parasitoid Aphidius ervi (Hymenoptera: Aphidiidae) |
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| Authors: | Radovan Malina Ján Prasli?ka and Janka Schlarmannová |
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| Institution: | (1) Institute of Plant Sciences/Applied Entomology, ETH Zurich, Schmelzbergstrasse 9/LFO, 8092 Zurich, Switzerland;(2) Institute of Integrated Biology/Plant Pathology, ETH Zurich, 8092 Zurich, Switzerland;(3) Centro di Cadenazzo, Agroscope Changins-Wadenswil, 6594 Contone, Switzerland;(4) Present address: Agroscope Changins-Wadenswil Research Station, ACW, P.O. Box 185, Schloss, 8820 Wadenswil, Switzerland; |
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| Abstract: | Developmental rates of the aphid Aphis pomi and its parasitoid Aphidius ervi were compared at four constant temperatures (15, 20, 25, 30°C). Aphis pomi required 159.07 degree-days (DD) above lover developmental threshold (LDT) of 0.3°C. Aphidius ervi required 229.73 DD above LDT of 5.98°C. Developmental rate of A. pomi is higher than the developmental rate of A. ervi at the same conditions |
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