Host choice by aphidiid parasitoids (Hymenoptera: Aphidiidae): host recognition, host quality, and host value

Canadian Entomologist

Volumn 128, Issue 6, 1996, Pages 959-980

  Mackauer, M ^a   Michaud, J P ^a   Volkl W ^b  

^a SIMON FRASER UNIVERSITY   (Canada)

^b UNIVERSITY OF BAYREUTH   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

APHIDIDAE; APHIDIINAE; HYMENOPTERA; VESPIDAE; APHIDIIDAE; HOMOPTERA;

APHID; HOST CHOICE; OVIPOSITION; PARASITOIDS; WASP;

EID: 0030322033     PISSN: 0008347X     EISSN: 19183240     Source Type: Journal    
DOI: 10.4039/ent128959-6     Document Type: Article

References (148)

1. Antolin, M.F. 1989. Genetic considerations in the study of attack behavior of parasitoids, with reference to Muscidifurax raptor (Hymenoptera: Pteromalidae). Florida Entomologist 72: 15-32.
2. Bai, B., and M. Mackauer. 1992. Influence of superparasitism on development rate and adult size in a solitary parasitoid wasp, Aphidius ervi. Functional Ecology 6: 302-307.
3. Battaglia, D., F. Pennacchio, G. Marincola, and A. Tranfaglia. 1993. Cornicle secretion of Acyrthosiphon pisum (Homoptera: Aphididae) as a contact kairomone for the parasitoid Aphidius ervi (Hymenoptera: Braconidae). European Journal of Entomology 90: 423-428.
4. Battaglia, D., F. Pennacchio, A. Romano, and A. Tranfaglia. 1995. The role of physical cues in the regulation of host recognition and acceptance behavior of Aphidius ervi Haliday (Hymenoptera: Braconidae). Journal of Insect Behavior 8: 739-750.
5. Bell, W.J. 1991. Searching Behaviour. The Behavioural Ecology of Finding Resources. Chapman and Hall, London, 358 pp.
6. Bouchard, Y., and C. Cloutier. 1984. Honeydew as a source of host-searching kairomones for the aphid parasitoid Aphidius nigripes (Hymenoptera: Aphidiidae). Canadian Journal of Zoology 62: 1513-1520.
7. _ 1985. Role of olfaction in host finding by aphid parasitoid Aphidius nigripes (Hymenoptera: Aphidiidae). Journal of Chemical Ecology 11: 801-808.
8. Braimah, H., and H.F. van Emden 1994 The role of the plant in host acceptance by the parasitoid Aphidius rhopalosiphi (Hymenoptera: Braconidae). Bulletin of Entomological Research 84: 303-306.
9. Budenberg, W.J. 1990. Honeydew as a contact kairomone for aphid parasitoids. Entomologia Experimentalis et Applicata 55: 139-148.
10. Budenberg, W.J., W. Powell, and S.J. Clark. 1992. The influence of aphids and honeydew on the leaving rate of searching aphid parasitoids from wheat plants. Entomologia Experimentalis et Applicata 63: 259-264.
11. Calvert, D.J. 1973 Experimental host preferences of Monoctonus paulensis (Hymenoptera: Braconidae), including a hypothetical scheme of host selection. Annals of the Entomological Society of America 66: 28-33.
12. Calvert, D.J., and R. van den Bosch. 1972. Behavior and biology of Monoctonus paulensis (Hymenoptera: Braconidae), a parasite of dactynotine aphids. Annals of the Entomological Society of America 65: 773-779.
13. Charnov, E.L., R.L. Los-den-Hartogh, W.T. Jones, and J. van den Assem. 1981. Sex ratio evolution in a variable environment. Nature (London) 289: 27-33.
14. Chow, A., and M. Mackauer. 1991. Patterns of host selection by four species of aphidiid (Hymenoptera) parasitoids: Influence of host switching. Ecological Entomology 16: 403-410.
15. _ 1992. The influence of prior ovipositional experience on host selection in four species of aphidiid wasps (Hymenoptera Aphidiidae). Journal of Insect Behavior 5: 99-108.
16. Chow, F.J., and M. Mackauer. 1986. Host discrimination and larval competition in the aphid parasite Ephedrus californicus Baker. Entomologia Experimentalis et Applicata 41: 243-254.
17. Cloutier, C., and F. Bauduin. 1990. Searching behavior of the aphid parasitoid Aphidius nigripes (Hymenoptera; Aphidiidae) foraging on potato plants. Environmental Entomology 19: 222-228.
18. Cloutier, C., L.A. Dohse, and F. Bauduin. 1984. Host discrimination in the aphid parasitoid Aphidius nigripes. Canadian Journal of Zoology 62: 1367-1372.
19. Cloutier, C., C.A, Lévesque, D.M. Eaves, and M. Mackauer. 1991. Maternal adjustment of sex ratio in response to host size in the aphid parasitoid Ephedrus californicus. Canadian Journal of Zoology 69: 1489-1495.
20. Cloutier, C., and M. Mackauer. 1979. The effect of parasitism by Aphidius smithi (Hymenoptera: Aphidiidae) on the food budget of the pea aphid, Acyrthosiphon pisum (Homoptera: Aphididae). Canadian Journal of Zoology 57: 1605-1611.
21. _ 1980. The effect of superparasitism by Aphidius smithi (Hymenoptera: Aphidiidae) on the food budget of the pea aphid, Acyrthosiphon pisum (Homoptera: Aphididae) Canadian Journal of Zoology 58: 241-244.
22. Collins, M.D., and A.F.G. Dixon. 1986. The effect of egg depletion on the foraging behaviour of an aphid parasitoid. Journal of Applied Entomology 102: 342-352.
23. Courtney, S.P., G.K. Chen, and A. Gardner. 1989 A general model for individual host selection. Oikos 55: 55-65.
24. Courtney, S.P., and T.T. Kibota. 1990. Mother doesn't know best: Selection of hosts by ovipositing insects. pp. 161-188 in Bernays, E.A. (Ed.), Insect-Plant Interactions, Vol. II. CRC Press, Boca Raton, FL. 199 pp.
25. Danyk, T.P., and M. Mackauer. 1993 Discrimination between self- and conspecific-parasitized hosts in the aphid parasitoid Praon pequodorum Viereck (Hymenoptera: Aphidiidae). The Canadian Entomologist 125: 957-964.
26. Donaldson, J.S., and G.H. Walter. 1984. Sex ratios of Spalangia endius (Hymenoptera: Pteromalidae), in relation to current theory. Ecological Entomology 9: 395-402.
27. Doutt, R.L. 1959. The biology of parasitic Hymenoptera. Annual Review of Entomology 4: 161-182.
28. Evans, G.A., A. Polaszek, and F.D. Bennett. 1995. The taxonomy of the Encarsia flavocsutellum species-group (Hymenoptera. Aphelinidae) parasitoids of Hormaphididae (Homoptera: Aphidoidea). Oriental Insects 29: 33-45.
29. Fletcher, J.P., J.P. Hughes, and I.F. Harvey. 1994. Life expectancy and egg load affect oviposition decisions of a solitary parasitoid Proceedings of the Royal Society (London), B 258: 163-167.
30. Gardner, S.M., and A.F.G. Dixon. 1985. Plant structure and the foraging success of Aphidius rhopalosiphi (Hymenoptera: Aphidiidae). Ecological Entomology 10: 171-179.
31. Gauld, I., and B. Bolton (Eds.). 1988. The Hymenoptera. Oxford University Press, Oxford. 332 pp.
32. Gerling, D., B.D. Roitberg, and M. Mackauer. 1990. Instar-specific defense of the pea aphid, Acyrthosiphon pisum: Influence on oviposition success of the parasite Aphelinus asychis (Hymenoptera: Aphelinidae). Journal of Insect Behavior 3: 501-514.
33. Godfray, H.C.J. 1994. Parasitoids. Behavioral and Evolutionary Ecology. Princeton University Press, Princeton, NJ. 473 pp.
34. Godfray, H.C.J., and I.C.W. Hardy. 1993. Sex ratio and virginity in haplodiploid insects. pp. 402-417 in Wrensch, D.C., and M.A. Ebben (Eds.). Evolution and Diversity of Sex Ratio in Insects and Mites. Chapman and Hall, New York, NY. 630 pp.
35. Goff, A.M., and L.R. Nault. 1984. Response of the pea aphid parasite Aphidius ervi Haliday (Hymenoptera: Aphidiidae) to transmitted light. Environmental Entomology 13: 595-598.
36. Grasswitz, T.R., and T D Paine. 1992. Kairomonal effect of an aphid cornicle secretion on Lysiphlebus testaceipes (Cresson) (Hymenoptera: Aphidiidae). Journal of Insect Behavior 5: 447-457.
37. _ 1993a. Influence of physiological state and experience on the responsiveness of Lysiphlebus testaceipes (Cresson) (Hymenoptera: Aphidiidae) to aphid honeydew and to host plants. Journal of Insect Behavior 6: 511-528.
38. _ 1993b. Effect of experience on in-flight orientation to host-associated cues in the generalist parasitoid Lysiphlebus testaceipes. Entomologia Experimentalis et Applicata 68: 219-229.
39. Griffiths, D.C. 1960. The behaviour and specificity of Monocionus paludum Marshall (Hym., Braconidae), a parasite of Nasonovia ribis-nigri (Mosley) on lettuce. Bulletin of Entomological Research 51: 303-319
40. _ 1961. The development of Monoctonus paludum Marshall (Hym., Braconidae), a parasite of Nasonovia ribis-nigri (Mosley) on lettuce. Bulletin of Entomological Research 52: 147-163.
41. Guerrieri, E., F. Pennacchio, and E. Tremblay. 1993. Flight behaviour of the aphid parasitoid Aphidius ervi (Hymenoptera: Braconidae) in response to plant and host volatiles. European Journal of Entomology 90: 415-421.
42. Hacker, S.D., and M.D. Bertness. 1994. A herbivore paradox: Why salt marsh aphids live on poor-quality plants. American Naturalist 145: 192-210.
43. Hagvar, E.B., and T. Hofsvang. 1989. Effect of honeydew on plant colonization by the aphid parasitoid Ephedrus cerasicola. Entomophaga 34: 495-501.
44. Hardie, J., A.J. Hick, C. Höller, J. Mann, L. Merritt, S.F. Nottingham, W. Powell, L.J. Wadhams, J. Witthinrich, and A.F. Wright. 1994. The response of Praon spp. parasitoids to aphid sex pheromone components in the field. Entomologia Experimentalis et Applicata 71: 95-99.
45. Hardie, J., S.F. Nottingham, W. Powell, and L.J. Wadhams. 1991. Synthetic aphid sex pheromone lures female parasitoids. Entomologia Experimentalis et Applicata 61: 97-99.
46. Heie, O.E. 1987. Palaeontology and phylogeny. pp. 367-391 in Minks, A.K., and P. Harrewijn (Eds.), Aphids, their Biology, Natural Enemies and Control. World Crop Pests, Vol. 2A. Elsevier, Amsterdam. 450 pp.
47. Hille Ris Lambers, D. 1966. Polymorphism in Aphididae. Annual Review of Entomology 11: 47-78.
48. Hofsvang, T. 1988. Mechanisms of host discrimination and intraspecific competition in the aphid parasitoid Ephedrus cerasicola. Entomologia Experimentalis et Applicata 48: 233-239.
49. Höller, C., C. Borgemeister, H. Haardt, and W. Powell. 1993. The relationship between primary parasitoids and hyperparasitoids of cereal aphids: An analysis of field data. Journal of Animal Ecology 62: 12-21.
50. Horn, D.J. 1984. Vegetational complexity and parasitism of green peach aphids (Myzus persicae (Sulzer) (Homoptera: Aphididae)) on collards. Journal of the New York Entomological Society 92: 19-26.
51. Iwasa, Y., Y. Suzuki, and H. Matsuda. 1984. Theory of oviposition strategy of parasitoids. I. Effect of mortality and limited egg number. Theoretical Population Biology 26: 205-227.
52. Kindlmann, P., and Z. Ruzicka. 1992. Possible consequences of a specific interaction between predators and parasites of aphids. Ecological Modelling 61: 253-265.
53. Klingauf, F. 1967. Abwehr- und Meidereaktionen von Blattläusen (Aphididae) bei Bedrohung durch Räuber und Parasiten. Zeitschrift für Angewandte Entomologie 60: 269-317.
54. Kouamé, K.L., and M. Mackauer. 1991. Influence of aphid size, age and behaviour on host choice by the parasitoid wasp Ephedrus californicus: A test of host-size models. Oecologia 88: 197-203.
55. _ 1992. Influence of starvation on development and reproduction in apterous virginoparae of the pea aphid, Acyrthosiphon pisum. The Canadian Entomologist 124: 87-95.
56. Lewis, T., and L.R. Taylor. 1965. Diurnal periodicity of flight by insects. Transactions of the Royal Entomological Society (London) 116: 393-479.
57. Lewis, W.J., and J.H. Tumlinson. 1988. Host detection by chemically mediated associative learning in a parasitic wasp. Nature (London) 331: 257-259.
58. Lewis, W.J., J.H. Tumlinson, and S. Krasnoff. 1991. Chemically mediated associative learning: An important function in the foraging behavior of Microplitis cioceipes (Cresson). Journal of Chemical Ecology 17: 1309-1325.
59. Lewis, W.J., L.E.M. Vet, J.H. Tumlinson, J.C. van Lenteren, and D.R. Papaj. 1990. Variations in parasitoid foraging behavior: Essential element of a sound biological control theory. Environmental Entomology 19: 1183-1193
60. Li, C., B.D. Roitberg, and M. Mackauer. 1992. The search pattern of a parasitoid wasp, Aphelinus asychis, for its host. Oikos 65: 207-212.
61. _ 1993. Patch residence time and parasitism of Aphelinus asychis: A simulation model. Ecological Modelling 69: 227-241.
62. Liepert, C., and K. Dettner. 1993. Recognition of aphid parasitoids by honeydew-collecting ants: The role of cuticular lipids in a chemical mimicry system. Journal of Chemical Ecology 19: 2143-2153.
63. Liu, S.S., R. Morton, and R.D. Hughes. 1984. Oviposition preferences of a hymenopterous parasite for certain instars of its aphid host. Entomologia Experimentalis et Applicata 35: 249-254.
64. Lopez, E.R., R.G Van Driesche, and J S. Elkinton. 1990. Rates of parasitism by Diaeretiella rapae (Hymenoptera: Braconidae) for cabbage aphids (Homoptera: Aphididae) in and outside of colonies: Why do they differ? Journal of the Kansas Entomological Society 63: 158-165.
65. Luck, R.F . R Stouthamer, and E.P. Nunney. 1993. Sex determination and sex ratio patterns in parasitic Hymenoptera. pp. 442-476 in Wrensch, D.C., and M.A. Ebben (Eds.), Evolution and Diversity of Sex Ratio in Insects and Mites. Chapman and Hall, New York, NY. 630 pp.
66. Mackauer, M. 1965. Parasitological data as an aid in aphid classification. The Canadian Entomologist 97: 1016-1024.
67. _ 1976. The sex ratio in field populations of some aphid parasites. Annals of the Entomological Society of America 69: 453-456.
68. _ 1990. Host discrimination and larval competition in solitary endoparasitoids. pp 41-62 in Mackauer, M., L.E. Ehler, and J Roland (Eds.), Critical Issues in Biological Control. Intercept, Andover, Hants. 330 pp.
69. _ 1996. Sexual size dimorphism in solitary parasitoid wasps: Influence of host quality. Oikos 76. 265-272.
70. Mackauer, M., B. Bai, A. Chow, and T. Danyk. 1992. Asymmetric larval competition between two species of solitary parasitoid wasps: The influence of superparasitism. Ecological Entomology 17: 233-236.
71. Mackauer, M., and F.J. Chow. 1986. Parasites and parasite impact on aphid populations. pp. 93-117 in McLean, G.D., R.G. Garret, and W.G. Ruesink (Eds.), Plant Virus Epidemics: Monitoring, Modelling and Predicting Outbreaks. Academic Press, Sydney. 550 pp.
72. Mackauer, M., and R. Foottit. 1979. A gall midge, Endaphis sp. (Diptera: Cecidomyiidae). as a gregarious aphid parasite. The Canadian Entomologist 111: 615-620.
73. Mackauer, M., and S. Kambhampati. 1988. Parasitism of aphid embryos by Aphidius smithi: Some effects of extremely small host size. Entomologia Experimentalis et Applicata 49: 167-173.
74. Mackauer, M., and R. Sequeira. 1993. Patterns of development in insect parasites. pp. 1-23 in Beckage, N.E , S.N. Thompson, and B.A. Federici (Eds.), Parasites and Pathogens of Insects, Vol. 1: Parasites. Academic Press, Orlando, FL. 364 pp.
75. Mackauer, M., R. Sequeira, and M. Otto. 1997. Growth and development in parasitoid wasps: Adaptation to variable host resources. In Dettner, K., G. Bauer, and W. Völkl (Eds.), Vertical Food Web Interactions: Evolutionary Patterns and Driving Forces. Ecological Studies, Springer-Verlag, Heidelberg. In press.
76. Mackauer, M., and P. Starý. 1967. World Aphidiidae (Hym. Ichneumonoidea). Le François, Paris. 195 pp.
77. Mackauer, M., and W. Volkl. 1993. Regulation of aphid populations by aphidiid wasps: Does parasitoid foraging behaviour or hyperparasitism limit impact? Oecologia 94: 339-350.
78. Mangel, M. 1989. Evolution of host selection in parasitoids: Does the state of the parasitoid matter? American Naturalist 133: 688-705.
79. Mangel, M., and C.W. Clark. 1988. Dynamic Modeling in Behavioral Ecology Princeton University Press, Princeton, NJ. 308 pp.
80. McBrien, H., and M. Mackauer. 1990. Heterospecific larval competition and host discrimination in two species of aphid parasitoids: Aphidius ervi and Aphidius smithi. Entomologia Experimentalis et Applicata 56: 145-153.
81. _ 1991. Decision to superparasitize based on larval survival: Competition between aphid parasitoids Aphidius ervi and Aphidius smithi. Entomologia Experimentalis et Applicata 59: 145-150.
82. McGregor, R., and M. Mackauer. 1989. Toxicity of carbaryl to the pea-aphid parasite Aphidius smithi: Influence of behaviour on pesticide uptake. Crop Protection 8: 193-196.
83. Michaud, J.P. 1994. Differences in foraging behaviour between virgin and mated aphid parasitoids (Hymenoptera: Aphidiidae). Canadian Journal of Zoology 72: 1597-1602.
84. _ 1995. Static and Dynamic Criteria in Host Evaluation by Aphid Parasitoids (Hymenoptera: Aphidiidae). Ph.D. thesis, Simon Fraser University, Burnaby, British Columbia. 150 pp.
85. _ 1996. The oviposition behavior of Aphidius ervi and Monoctonus paulensis (Hymenoptera: Aphidiidae) encountering different host species (Homoptera: Aphididae) in sequential patches. Journal of Insect Behavior. In press.
86. Michaud, J.P., and M. Mackauer. 1994. The use of visual cues in host evaluation by aphidiid wasps. I. Comparison between three Aphidius parasitoids of the pea aphid. Entomologia Experimentalis et Applicata 70: 273-283.
87. _ 1995a. The use of visual cues in host evaluation by aphidiid wasps. II. Comparison between Ephedrus californicus, Monoctonus paulensis, and Praon pequodorum. Entomologia Experimentalis et Applicata 74: 267-275.
88. _ 1995b. Oviposition behavior of Monoctonus paulensis (Hymenoptera: Aphidiidae): Factors influencing reproductive allocation to hosts and host patches. Annals of the Entomological Society of America 88: 220-226.
89. Miller, J.R., and K. Strickler. 1984. Finding and accepting host plants. pp. 127-157 in Bell, W.J., and R.T. Cardé (Eds.), Chemical Ecology of Insects. Sinauer Associates, Sunderland, MA. 524 pp
90. Miyazaki, M. 1987. Forms and morphs of aphids. pp. 27-50 in Minks, A.K., and P. Harrewijn (Eds.), Aphids. Their Biology, Natural Enemies and Control. World Crop Pests, Vol. 2A. Elsevier, Amsterdam. 450 pp.
91. Ojayi, O., and A.M. Dewar. 1982. The effect of barley yellow dwarf virus on honeydew production by the cereal aphids, Sitobion avenae and Metopolophium dirhodum. Annals of Applied Biology 100: 203-212.
92. Papaj, D.R., and L.E.M. Vet. 1990. Odor learning and foraging success in the parasitoid, Leptopilina heterotoma. Journal of Chemical Ecology 16: 3137-3150.
93. Polgár, L., M. Mackauer, and W. Volkl. 1991. Diapause induction in two species of aphid parasitoids: The influence of aphid morph. Journal of Insect Physiology 37: 699-702.
94. Powell, W., and A.F. Wright, 1992. The influence of host food plants on host recognition by four aphidiine parasitoids (Hymenoptera: Braconidae). Bulletin of Entomological Research 81: 449-453.
95. Powell, W., and Z.L. Zhang. 1983. The reactions of two cereal aphid parasitoids, Aphidius uzbekistanicus and A. ervi, to host aphids and their food plants. Physiological Entomology 8: 439-443.
96. Pungerl, N. 1984. Host preferences of Aphidius (Hymenoptera: Aphidiidae) populations parasitising pea and cereal aphids (Hemiptera: Aphididae). Bulletin of Entomological Research 74: 153-161.
97. Read, D.P., P.P. Feeny, and R.B. Root. 1970. Habitat selection by the aphid parasite Diaeretiella rapae (Hymenoptera: Braconidae) and hyperparasite Charips brassicae (Hymenoptera Cynipidae). The Canadian Entomologist 102: 1567-1578.
98. Roitberg, B.D. 1990. Variation in behaviour of individual parasitic insects: Bane or boon? pp. 25-39 in Mackauer, M., L.E. Ehler, and J. Roland (Eds.), Critical Issues in Biological Control. Intercept, Andover, Hants. 330 pp.
99. Rosenheim, J.A., H.K. Kaya, L.E. Ehler, J.A. Marois, and B.A. Jaffee. 1995. Intraguild predation among biological-control agents: Theory and evidence. Biological Control 5: 303-335.
100. Saxena, K.N., and P. Khattar. 1977. Orientation of Papilio demoleus larvae in relation to size, distance, and combination patterns of visual stimuli. Proceedings of the Royal Society (London), B 122: 57-75.
101. Sequeira, R., and M. Mackauer. 1987. Host instar preference of the aphid parasite Praon pequodorum (Hymenoptera: Aphidiidae) Entomologia Generalis 12: 259-265.
102. _ 1992a. Nutritional ecology of an insect host-parasitoid association: The pea aphid - Aphidius ervi system. Ecology 73: 183-189.
103. _ 1992b. Covariance of adult size and development time in the parasitoid wasp Aphidius ervi in relation to the size of its host, Acyrthosiphon pisum. Evolutionary Ecology 6: 34-44.
104. _ 1993a. The nutritional ecology of a parasitoid wasp. Ephedrus californicus Baker (Hymenoptera: Aphidiidae). The Canadian Entomologist 125: 423-430.
105. _ 1993b. Seasonal variation in body size and offspring sex ratio in field populations of the parasitoid wasp, Aphidius ervi (Hymenoptera: Aphidiidae). Oikos 68: 340-346.
106. _ 1994. Variation in selected life-history parameters of the parasitoid wasp, Aphidius ervi: Influence of host developmental stage. Entomologia Experimentalis et Applicata 71: 15-22.
107. Shaw, M.R. 1994. Parasitoid host ranges. pp. 111-144 in Hawkins, B.A., and W. Sheehan (Eds.), Parasitoid Community Ecology. Oxford University Press, Oxford. 516 pp.
108. Singh, R., and T.B. Sinha. 1980. Bionomics of Trioxys (Binodoxys) indicus Subba Rao & Sharma, an aphidiid parasitoid of Aphis craccivora. VII. Sex ratio of the parasitoid in field populations. Entomon 4: 269-275.
109. _ 1982. Bionomics of Trioxys (Binodoxys) indicus Subba Rao & Sharma, an aphidiid parasitoid of Aphis craccivora. XIII. Host selection by the parasitoid. Zeitschrift für Angewandte Entomologie 93: 64-75.
110. Singh, R., and M. Srivastava. 1987. Bionomics of Trioxys indicus Subba Rao & Sharma, an aphidiid parasitoid of Aphis craccivora Koch. 25. The role of host haemolymph in the host stage preference by the parasitoid. Giornale Italiana di Entomologia 3: 409-412.
111. Srivastava, M., and R. Singh. 1988. Bionomics of Trioxys indicus, an aphidiid parasitoid of Aphis craccivora. 26. Impact of host extract on the oviposition response of the parasitoid. Biology, Agriculture and Horticulture 5: 169-176.
112. Stadler, B., and M. Mackauer. 1996. Influence of plant quality on interactions between the aphid parasitoid Ephedrus californicus (Hymenoptera: Aphidiidae) and its host. Acynhosiphon pisum (Homoptera: Aphididae). The Canadian Entomologist 128: 27-39.
113. Stadler, B., and W. Völkl. 1991. Foraging patterns of two aphid parasitoids, Lysiphlebus testaceipes and Aphidius colemani on banana. Emomologia Experimentalls et Applicata 58: 221-229.
114. Starý, P. 1970. Biology of Aphid Parasites. Series Entomologica, Vol. 6. Dr. W. Junk, The Hague. 643 pp.
115. _ 1988a. Aphidiidae. pp. 171-184 in Minks, A.K., and P. Harrewijn (Eds.), Aphids. Their Biology, Natural Enemies and Control. World Crop Pests, Vol. 2B. Elsevier, Amsterdam. 364 pp
116. _ 1988b. Aphelinidae. pp. 185-188 in Minks, A.K., and P. Harrewijn (Eds.), Aphids. Their Biology, Natural Enemies and Control. World Crop Pests, Vol. 2B. Elsevier. Amsterdam. 364 pp.
117. Stechmann, D.H., W. Völkl, and P. Starý, 1996. Ant-attendance as a critical factor in the biological control of the banana aphid Pentalonia nigronervosa Coq. (Hom. Aphididae) in Oceania. Journal of Applied Entomology 120: 119-123.
118. Stephens, D.W., and J.R. Krebs. 1986. Foraging Theory. Princeton University Press, Princeton, NJ. 247 pp.
119. Sullivan, D.J. 1988. Hyperparasites. pp. 189-203 in Minks, A.K., and P. Harrewijn (Eds.), Aphids. Their Biology, Natural Enemies and Control. World Crop Pests, Vol. 2B. Elsevier, Amsterdam 364 pp.
120. Tagawa, J. 1987. Post-mating changes in the oviposition tactics of the parasitic wasp, Apanteles glomeratus L. (Hymenoptera: Braconidae). Applied Entomology and Zoology 22: 537-542.
121. Takada, H., and Y. Hashimoto. 1985. Association of the root aphid parasitoids Aclitus sappaphis and Paralipsis eikoae (Hymenoptera, Aphidiidae) with the aphid-attending ants Pheidole fervida and Lasius niger (Hymenoptera, Formicidae). Kontu 53: 150-160.
122. Tamaki, G., B. Annis, and M. Weiss. 1981. Response of natural enemies to the green peach aphid in different plant cultures. Environmental Entomology 10: 375-378.
123. Tang, Y.Q., R.K. Yokomi, and R.J. Gagné. 1994. Life history and description of Endaphis maculans (Diptera: Cecidomyiidae), an endoparasatoid of aphids in Florida and the Caribbean Basin. Annals of the Entomological Society of America 87: 523-531.
124. Tardieux, I., and J.M. Rabasse. 1986. Host-parasite interrelationships in the case of Aphidius colemani. pp. 125-130 in Hodek. I. (Ed.), Ecology of Aphidophaga 2. Academia, Prague. 562 pp.
125. Thompson, J.N. 1988. Evolutionary ecology of the relationship between oviposition preference and performance of offspring in phytophagous insects. Emomologia Experimentalis et Applicata 47: 3-14.
126. Turlings, T.C.J., J.W.A. Scheepmaker, L.E.M. Vet. J.H. Tumlinson, and W.J. Lewis. 1990. How contact foraging experiences affect preferences for host-related odors in the larval parasitoid Coresia marginiventris (Cresson) (Hymenoptera: Braconidae). Journal of Chemical Ecology 16: 1577-1589.
127. van Emden, H.F. 1995. Host plant - aphidophaga interactions. Agriculture, Ecosystems & Environment 52: 3-11.
128. Vater, G. 1971. Über Ausbreitung und Orientierung von Diaeretiella rapae (Hymenoptera, Aphidiidae) unter Berücksichtigung der Hyperparasiten von Brevicoryne brassicae (Homoptera, Aphididae). Zeitschrift für Angewandte Entomologie 68: 187-225.
129. Vet, L.E.M., W.J. Lewis, D.R. Papaj, and J.C. van Lenteren. 1990. A variable response model for parasitoid foraging behavior Journal of Insect Behavior 3: 471-490.
130. Vinson, S.B. 1976. Host selection by insect parasitoids. Annual Revue of Entomology 21: 109-133.
131. Vinson, S.B., and G.F. Iwantsch. 1980a. Host regulation by insect parasitoids. Quarterly Review of Biology 55: 145-165.
132. _ 1980b. Host suitability for insect parasitoids. Annual Review of Entomology 25: 397-419.
133. Völkl, W 1991. Species-specific larval instar preferences and aphid defense behaviour in three parasitoids of Aphis fabae. pp. 73-78 in Polgár, L., R.J. Chambers, A.F.G. Dixon, and I. Hodek (Eds.), Behaviour and Impact of Aphidophaga. SPB Academic, The Hague. 350 pp.
134. _ 1992. Aphids or their parasitoids: Who actually benefits from ant-attendance? Journal of Animal Ecology 61: 273-281.
135. _ 1994a. Searching at different spatial scales: The foraging behaviour of the aphid parasitoid Aphidius rosae in rose bushes. Oecologia 100: 177-183.
136. _ 1994b. The effect of ant-attendance on the foraging behaviour of the aphid parasitoid Lysiphlebus cardui. Oikos 70: 149-155.
137. Vö4lkl, W., and W. Kraus. 1996. Foraging behaviour and resource utilization of the aphid parasitoid Pauesia unilachni: Adaptation to host distribution and mortality risk. Entomologia Experimentalls et Applicata 79: 101-109.
138. Völkl, W., C. Liepert, R. Birnbach, G. Hübner, and K. Dettner. 1996. Chemical and tactile communication by the root aphid parasitoid Paralipsis enervis and trophobiotic ants: Consequences for parasitoid survival. Experientia 52: 731-738.
139. Volkl, W., and M. Mackauer. 1990. Age-specific pattern of host discrimination by the aphid parasitoid Ephedrus californicus Baker (Hymenoptera: Aphidiidae). The Canadian Entomologist 122: 349-361.
140. _ 1993. Interactions between ants and parasitoid wasps foraging for Aphis fabae ssp. cirsiiacanthoidis on thistles. Journal of Insect Behavior 6: 301-312.
141. Völkl, W., and B. Stadler, 1996. Colony orientation and successful defense behaviour in the conifer aphid, Schizolachnus pineti Entomoiogia Experimentalis et Applicata 78: 197-200.
142. Waage, J.K. 1986. Family planning in parasitoids: Adaptive patterns of progeny and sex allocation. pp. 63-95 in Waage, J., and D. Greathead (Eds.), Insect Parasitoids. Academic Press, London. 389 pp.
143. Weisser, W.W. 1994. Age-dependent foraging behaviour and host-instar preference of the aphid parasitoid Lysiphlebus cardia. Entomologia Experimentalis et Applicata 70. 1-10.
144. _ 1995. Within-patch foraging behaviour of the aphid parasitoid Aphidius funebris: Plant architecture, host behaviour, and individual variation. Entomologia Experimentalis et Applicata 76: 133-141.
145. Weisser, W W., and A.I. Houston. 1993. Host discrimination in parasitic wasps. When is it advantageous? Functional Ecology 7: 27-39.
146. Weisser, W.W., A.I. Houston, and W. Voelkl. 1994. Foraging strategies in solitary parasitoids: The trade-off between female and offspring mortality risks. Evolutionary Ecology 8: 587-597.
147. Wellings, P.W. 1993. Foraging behaviour in aphid parasitoids: Spatial scale and resource assessment. European Journal of Entomology 90: 377-382.
148. Wickremasinghe, M.G.V . and H.F. van Emden. 1992. Reactions of adult female parasitoids, particularly Aphidius rhopalosiphi, to volatile chemical cues from the host plants of their aphid prey. Physiological Entomology 17: 297-304