SERIES ENTOMOLOGICA VOLUME 49 /§\ Proceedings of the 8th International Symposium on Insect-Plant Relationships Edited by S. B.J . Menken, J. H. Visser and P. Harrewijn W KLUWER ACADEMIC PUBLISHERS DORDRECHT/ BOSTON / LONDON tevvj Snu °) ISBN 0-7923-2099-9 Published by Kluwer Academic Publishers, P.O.Bo x 17,3300A A Dordrecht, The Netherlands. Kluwer Academic Publishers incorporates thepublishin g programmes of D.Reidel , Martinus Nijhoff, DrW . Junk andMT PPress . Sold and distributed inth e U.S.A. and Canada by Kluwer Academic Publishers, 101Phili p Drive,Norwell , MA 02061, U.S.A. In allothe r countries, sold and distributed by Kluwer Academic Publishers Group, P.O. Box 322,3300 AH Dordrecht, The Netherlands. Cover design by F.J.J, von Planta,Wageninge n Agricultural University Printed onacid-free paper All Rights Reserved © 1992Kluwe r Academic Publishers and copyright holders as specified on appropriate pages within. Nopar t of the material protected by this copyright notice may be reproduced or utilized in any form or by any means,electroni c or mechanical, including photocopying, recording orb y any information storage and retrieval system, without writtenpermissio n from thecopyrigh t owner. Printed in the Netherlands Bibliotheek P!ante7JKklenki;i!ukj Centrum Binriürii.avön ''• • Po^ibus; ö\22 H/on :--'•; v.7\0'-"h'!!-'GE:N The 8th International Symposium on Insect-Plant Relationships was held at the International Agricultural Centre in Wageningen, The Netherlands, on 9-13 March 1992 Organizing Committee: - Prof.dr. L.M. Schoonhoven (Chairman), Department of Entomology, Wageningen Agricultural University - Dr. J.H. Visser (Secretary), Research Institute for Plant Protection IPO-DLO, Wageningen - Dr. J.J.A. van Loon (Treasurer), Department of Entomology, Wageningen Agricultural University - Prof.dr. S.B.J. Menken, Institute of Taxonomie Zoology, University of Amsterdam - Dr. P. Harrewijn, Research Institute for Plant Protection IPO-DLO, Wageningen - Prof.dr. E. van der Meijden, Department of Population Biology, University of Leiden - Dr. C. Mollema, Centre for Plant Breeding and Reproduction Research CPRO-DLO, Wageningen - Prof.dr. M.W. Sabelis, Department of Pure and Applied Ecology, University of Amsterdam - Ms. A.A. Greeven &Ms . E.J.L. Hotke (IAC Congress Organization), International Agricultural Centre, Wageningen - Mr. R.P.L.A. de Rooij (Second Secretaryfor Proceedings), Research Institute for Plant Protection IPO-DLO, Wageningen Acknowledgements The Organizing Committee wishes to acknowledge the support of several institutions and private organizations for their contributions, sponsorships and cooperation, particularly the following: - Koninklijke Nederlandse Akademie van Wetenschappen, Amsterdam - Ministerie van Economische Zaken, Den Haag - European Science Foundation, Strasbourg - Landbouwuniversiteit Wageningen - Dienst Landbouwkundig Onderzoek DLO-NL, Wageningen - Instituut voor Planteziektenkundig Onderzoek IPO-DLO, Wageningen - Nederlandse Vereniging voor het Tuinzaadbedrijfsleven, Wassenaar - Internationaal Agrarisch Centrum, Wageningen Contents S.B.J.Menken , J.H. Visser and P.Harrewijn : Introduction 1 Insect-Plant Communities D.R.Stron g and S. Larsson:Th e importance of herbivore population density in 5 multitrophic interactions in natural and agricultural ecosystems E.L.Simms :Th e evolution of plant resistance and correlated characters 15 H.-J. Greiler and T. Tscharntke: Habitat impact on insect communities of annual and 27 perennial grasses S.M. Louda, MA. Potvin and S.K. Collinge:Predispersa l seed prédation in the 30 limitation of native thistle D.Woo l and M. Burstein: Preference, tree resistance, or chance: how to interpret 33 differences in gall density among trees? M.Burstei n and D. Wool: Aggregation of aphid galls at 'preferred' sites within trees: 36 do colonizers have a choice? D.A. Potter: Abundance and mortality of a specialist leaf miner in response to 39 shading and fertilization of American holly T.Ohgushi : Within-population variation in demography of a herbivorous lady 41 beetle S.B.Malcolm , B.J.Cockrel l and L.P.Brower : Continental-scale host plant use by a 43 specialist insect herbivore: milkweeds, cardenolides and the monarch butterfly F.Kozâr :Resourc e partitioning of host plants by insects on a geographic scale 46 J.Janssen : Why do droughts often result in devastating insect epidemics? The 49 African armyworm, Spodoptera exempta, as an example K.W.Kleiner , M.D. Abrams and J.C.Schultz :Th e impact of water and nutrient 52 stress on oak leaf quality and gypsy moth performance R.A.Haack : Forest insect trends along an acidic deposition gradient in the central 55 United States J.Korichev a and E. Haukioja: Birch foliage quality and population density of 57 Eriocmnia miners in a pollution-affected area P. Lyytikäinen: Performance of Neodiprion sertifer on defoliated scots pine foliage 59 M.T.Smith , B.W.Woo d and R.F.Severson : Comparative studies of developmental 61 biology, preference and feeding behavior of Monellia caryella on Juglandaceae native to North America R.E.Kooi : Host-plant selection by the tropical butterfly Bicyclus anynana 65 J.Huignard , B.Tran , A. Lenga and N. Mandon: Interactions between host-plant 67 information and climatic factors on diapause termination of two species of Bruchidae E.D. van der Reijden and F.S.Chew : Assessing host-plant suitability in caterpillars: 69 is the weight worth the wait? D.Reavey : Size, feeding ecology and feeding behaviour of newly hatched 71 caterpillars P-Scutarean u and R. Lingeman:Natura l defence of pedunculate oak (Quercus robur) 74 against the defoliating insect Euproctis chrysorrhoea K.Vrielin g and C.A.M. van Wijk: Estimating costs and benefits of the pyrrolizidine 77 alkaloids of Seneciojacobaea under natural conditions VII N.M. van Dam and S.K. Bhairo-Marhé: Induced chemical defence in Cynoglossum 79 officinale A. Biller and T. Hartmann: Conversion of plant-derived pyrrolizidine alkaloids into 83 insect alkaloids L. Dinan: Phytoecdysteroids and insect-plant relationships in the Chenopodiaceae 86 M.Boppré , A. Biller, O.W. Fischer and T. Hartmann: The non-nutrional relationship 89 of Zonocerus (Orthoptera) to Chromolaena (Asteraceae) Host-Plant Selection R.E.Jones : Search behaviour: strategies and outcomes 93 E.Bartlet , I.H. Williams, MM. Blight and A.J. Hick: Response of the oilseed rape 103 pests, Ceutorhynchus assimilis and Psylliodes chrysocephala, to a mixture of isothiocyanates M.M. Blight, A.J. Hick,J.A . Pickett, L.E.Smart , L.J.Wadham s and CM. Woodcock: 105 Volatile plant metabolites involved in host-plant recognition by the cabbage seed weevil, Ceutorhynchus assimilis K.A. Evans:Th e olfactory and behavioural response of seed weevils, Ceutorhynchus 107 assimilis, to oilseed rape volatiles C.Kjœr-Pedersen : Dispersive flight of the cabbage stem weevil 109 R. Isaacs,J . Hardie, A.J. Hick, L.E. Smart and L.J. Wadhams: Responses of the black 112 bean aphid, Aphis fabae, to a non-host plant volatile in laboratory and field W.L.Mechabe r and F.S.Chew : Aggregation in a flower bud-feeding weevil 115 W.A. van Giessen,J.K . Peterson and O.W.Barnett : Electroantennogram responses of 117 aphids to plant volatiles and alarm pheromone J.A. Guldemond, A.F.G. Dixon, J.A. Pickett, L.J. Wadhams and CM. Woodcock: The 119 role of host-plant odour and sex pheromones in mate recognition in the aphid Cryptomyzus R. Baur and P.P. Feeny: Comparison of electroantennogram responses by females of 122 the black swallowtail butterfly, Papilio polyxenes, to volatiles from two host-plant species P. Ockenfels and F.Schmidt : Olfactory and visual cues in host-finding in the Burnet 125 moth, Zygaena trifolii A. Wibe and H. Mustaparta: Specialization of receptor neurons to host odours in the 127 pine weevil, Hylobius abietis M.H. Pham-Delègue, M.M.Blight , M.L e Métayer, F. Marion-Poll, A.L. Picard, J.A. 129 Pickett, L.J. Wadhams and CM. Woodcock: Plant chemicals involved in honeybee-rapeseed relationships: behavioural, electrophysiological and chemical studies G. Giangiuliani, M.Castellini , P. Damiani and F.Bin :Volatile s from soybean foliage 131 detected by means of a TCT-HRGC system: their possible role in insect-plant relationships E.N. Barata, P.J. Fonseca, E. Mateus,an d J. Araujo: Host-finding by Phoracantha 133 semipunctata: host volatiles, electroantennogram recordings and baited field traps K.Sachdev-Gupta , CD. Radke and J.A.A. Renwick: Chemical recognition of diverse 136 hosts by Pieris rapae butterflies S. Derridj, V. Fiala,P . Barry, P. Robert, P. Roessingh and E.Stadler : Role of nutrients 139 found in the phylloplane, in the insect host-plant selection for oviposition VIII P. Roessingh, E.Stadler ,J . Hurter and T. Ramp: Oviposition stimulant for the 141 cabbage rootfly: importan t new cabbage leaf surface compound and specific tarsal receptors E.Stadler , B.Ernst , J. Hurter, E.Boile r and M. Kozlowski: Tarsal contact 143 chemoreceptors of the cherry fruit fly, Rhagoletis cerasi: specificity, correlation with oviposition behaviour, and response to the synthetic pheromone E.A. Bernays: Dietary mixing in generalist grasshoppers 146 D.Thiéry , B.Gabe l and A.Pouvreau : Semiochemicals isolated from the eggs of 149 Ostrinia nubilalis as oviposition deterrent in three other moth species of different families G. de Boer: Roles of chemosensory organs in food discrimination by larvae of the 151 tobacco hornworm,Manduca sexto Luo L.E.an d L.M. Schoonhoven: Sensory responses to the triterpenoid antifeedant 153 toosendanin J.Harmatha , J. Nawrot, K. Vokac, L.Opleta l and M.Sovova : Insect antifeeding 155 activity of some cardenolides, coumarins and 3-nitropropionates of glucose from Coronilla varia J.N. McNeil and J. Delisle: Seasonal variation in the importance of pollen volatiles 157 on the reproductive biology of the sunflower moth W.M. Blaney and M.S.J.Simmonds : Seasonal variation in plant chemistry and its 159 effect on the feeding behaviour of phytophagous insects J.J.A. van Loon,T.C . Everaarts and R.C.Smallegange : Associative learning in host- 162 finding by female Pieris brassicae butterflies: relearning preferences F.