The Canadian Entomologist

VOLUME 128, NOVEMBER/DECEMBER 1996, NUMBER 6


CONTENTS

MACKAUER, M., J.P. MICHAUD, and W. VOLKL - INVITATION PAPER: C.P. Alexander Fund. Host choice by aphidiid parasitoids (Hymenoptera: Aphidiidae): Host recognition, host quality, and host value ...959-980

HOOVER, K., D.L. WOOD, A.J. STORER, J.W. FOX, and W.E. BROS - Transmission of the pitch canker fungus, Fusarium subglutinans f. sp. pini, to Monterey pine, Pinus radiata, by cone- and twig-infesting beetles ...981-994

MAIER, C.T., and C.R. LEMMON - Life cycle of Lambdina athasaria (Walker) (Lepidoptera: Geometridae) developing on hemlock in Connecticut ...995-1003

CHAKRABARTI, S., and F.W. QUEDNAU - A new genus, Neothelaxes, and two new species of Thelaxinae from India (Homoptera: Aphididae) ...1005-1011

QUEDNAU, F.W. - Two new species of myzocallidine aphids from North America and Japan (Homoptera: Aphididae) ...1013-1020

HARRIS, P., and J.D. SHORTHOUSE - Effectiveness of gall inducers in weed biological control ...1021- 1055

McBRIEN, H.L., G.J.R. JUDD, and J.H. BORDEN - Potential for pheromone-based mating disruption of the mullein bug, Campylomma verbasci (Meyer) (Heteroptera: Miridae) ...1057-1064

BLATT, S.E., and J.H. BORDEN - Distribution and impact of Leptoglossus occidentalis Heidemann (Hemiptera: Coreidae) in seed orchards in British Columbia ...1065-1076

VERNON, R.S., and J.S. BROATCH - Responsiveness of Delia spp. (Diptera: Anthomyiidae) to colored sticky traps in flowering and rosette stage canola ...1077-1085

BOITEAU, G., and W. COLEMAN - Cold tolerance in the Colorado potato beetle, Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae) ...1087-1099

PIENE, H., and E.S. EVELEIGH - Spruce budworm defoliation in young balsam fir: The 'green' tree phenomenon ...1101-1107

PIENE, H. Changes in spruce budworm defoliation with crown level ...1109-1113

ÇILGI, T., S.D. WRATTEN, J.L. ROBERTSON, D.E. TURNER, J.M. HOLLAND, and G.K. FRAMPTON - Residual toxicities of three insecticides to four species (Coleoptera: Carabidae) of arthropod predators ...1115-1124

BRANDT, J.P., S.M. SMITH, and M. HUBBES - Distribution and sampling of root weevil larvae in young ornamental conifer plantations ...1125-1133

GRAY, T.G., R.F. SHEPHERD, G. GRIES, and R. GRIES - Sex pheromone component of the western blackheaded budworm, Acleris gloverana Walsingham (Lepidoptera: Tortricidae) ...1135-1142

JACTEL, H., N. PERTHUISOT, P. MENASSIEU, G. RAISE, and C. BURBAN - A sampling design for within-tree larval populations of the maritime pine scale, Matsucoccus feytaudi Duc. (Homoptera: Margarodidae), and the relationship between larval population estimates and male catch in pheromone traps ...1143-1156

DOSDALL, L.M., M.J. HERBUT, N.T. COWLE, and T.M. MICKLICH - The effect of tillage regime on emergence of root maggots (Delia spp.) (Diptera: Anthomyiidae) from canola ...1157-1165

HUBER, J.T., E. EVELEIGH, S. POLLOCK, and P. McCARTHY - The chalcidoid parasitoids and hyperparasitoids (Hymenoptera: Chalcidoidea) of Choristonenra species (Lepidoptera: Tortricidae) in America north of Mexico ...1167-1220

FIDGEN, L.L., and J.D. SWEENEY - Fir coneworm, Dioryctria abietivorella (Grote) (Lepidoptera: Pyralidae), prefer cones previously exploited by the spruce cone maggots Strobilomyia neanthracina Michelsen and Strobilomyia appalachensis Michelsen (Diptera: Anthomyiidae) ...1221-1224

HEINZ, K.M. - Space- and cohort-dependent longevity in adult Liriomyza trifolii (Burgess) (Diptera: Agromyzidae) mass-rearing cultures ...1225-1237

INDEX TO VOLUME 128 ...1239

LIST OF SUPPLEMENTS AND MEMOIRS ...1244

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