caa a22 4500 397572301 CHVBK 20180308164845.0 cr unu---uuuuu 161202e19960601xx s 000 0 eng 10.1093/ee/25.3.703 doi (NATIONALLICENCE)oxford-10.1093/ee/25.3.703 Effect of Parasitism by Aphelinus spiraecolae (Hymenoptera: Aphelinidae) on Development and Reproduction of Spirea Aphid (Homoptera: Aphididae) [Elektronische Daten] [Y. Q. Tang, R. K. Yokomi] The effect of parasitism by Aphelinus spiraecolae Evans & Schauff on development, survival, reproduction, and population growth of different life stages of the spirea aphid, Aphis spiraecola Patch, was assessed in the laboratory. Differences in aphid population growth were related to the life stage attacked. Aphids parasitized as 1st and 2nd instars and 40% of those parasitized as 3rd instars died as 4th instars. Approximately 60% of aphids parasitized as 3rd instars and all parasitized as 4th instars and adults reached maturity and produced a variable number of offspring, with those stung as adults producing more. Parasitized adult aphids stopped producing offspring ≍6 dafter parasitoid attack. Parasitism by A. spiraecolae decreased life span, fecundity, and intrinsic rate of increase of the spirea aphid and increased aphid doubling time at rates dependent on the host stage parasitized. These data indicate that this parasitoid has potential as as a natural enemy of the aphid and should be further evaluated. © 1996 Entomological Society of America Biological Control nationallicence biological control nationallicence parasitoid growth nationallicence aphid population growth nationallicence Tang Y. Q. U.S. Horticultural Research Laboratory, USDA-ARS, South Atlantic Area 2120 Camden Road, Orlando, FL 32803-1419 aut Yokomi R. K. U.S. Horticultural Research Laboratory, USDA-ARS, South Atlantic Area 2120 Camden Road, Orlando, FL 32803-1419 aut Environmental Entomology Oxford University Press 25/3(1996-06-01), 703-707 0046-225X 25:3<703 1996 25 ee https://doi.org/10.1093/ee/25.3.703 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1093/ee/25.3.703 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Tang Y. Q. U.S. Horticultural Research Laboratory, USDA-ARS, South Atlantic Area 2120 Camden Road, Orlando, FL 32803-1419 aut NATIONALLICENCE 700 1- Yokomi R. K. U.S. Horticultural Research Laboratory, USDA-ARS, South Atlantic Area 2120 Camden Road, Orlando, FL 32803-1419 aut NATIONALLICENCE 773 0- Environmental Entomology Oxford University Press 25/3(1996-06-01), 703-707 0046-225X 25:3<703 1996 25 ee Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford