Google Scholar link for George Heimpel.
2019
2018
Boulton, R. A. & G. E. Heimpel. 2018. Mind the gap: the evolution of oviposition site and specialisation in the parasitoid superfamily Chalcidoidea. Biological Journal of the Linnaean Society 124:213-227.
Boulton R. A., Bulgarella M., Ramirez I.E., Causton C.E. 2018. Management of the invasive avian parasitic fly, Philornis downsi, in the Galapagos Islands: is biological control a viable option? Island Invasives 2017; Dundee, Scotland.
Brodeur, J., P. K. Abram, G. E. Heimpel, and R. H. Messing. 2018. Trends in biological control: public interest, international networking and research direction. BioControl 63:11-26.
Desneux, N., L. Monticelli, C. Luo, M.K, Asplen, C.M. Brady, G.E. Heimpel, K.R. Hopper, K.M. Oliver & J.A. White. 2018. Intraspecific variation in facultative symbiont infection among native and exotic pest populations: potential implications for biological control. Biological Control 116:27-35.
Fessl, B., G. E. Heimpel, and C. E. Causton. 2018. Invasion of an avian nest parasite, Philornis downsi, to the Galápagos Islands: Colonization history, adaptations to novel ecosystems, and conservation challenges. Pages 213-266 in P. G. Parker, editor. Disease Ecology: Social and Ecological Interactions in the Galapagos Islands. Springer, Dordrecht, The Netherlands.
Heimpel, G.E. & M.J. Cock. 2018. Shifting paradigms in the history of classical biological control. BioControl. 63:27-37.
Hopper, K.R., K.L. Kuhn, K. Lanier, J.H. Rhoades, K.M. Oliver, J.A. White, M.A. Asplen & G.E. Heimpel. 2018. The defensive aphid symbiont Hamiltonella defensa affects host quality differently for Aphelinus glycinis versus Aphelinus atriplicis. Biological Control
Karp, D.S., R. Chaplin-Kramer, T.D. Meehan . . . G.E. Heimpel . . . (110 other authors). 2018. Crop pests and predators exhibit inconsistent responses to surrounding landscape composition. Proceedings of the National Academy of Sciences (USA) 115(33): E7863-E7870.
Kaser, J.M & G.E. Heimpel. 2018 Impact of the parasitoid Aphelinus certus on soybean aphid populations. Biological Control 127: 17-24.
Mason, P. G., M. J. W. Cock, B. I. P. Barratt, J. Klapwijk, J. C. van Lenteren, J. C. Brodeur, K. A. Hoelmer, and G. E. Heimpel. 2018. Best practices for the use and exchange of invertebrate biological control genetic resources relevant for food and agriculture. BioControl 63:149-154.
Mills, N.J. & G.E. Heimpel. 2018 Could increased understanding of foraging behavior help to predict the success of biological control? Current Opinion in Insect Science 27:26-31.
Sage, R., R.A. Boulton, P. Lahuatte, C.E. Causton, R. Cloutier & G.E. Heimpel. 2018. Environmentally cued hatching in the bird parasite Philornis downsi (Diptera: Muscidae). Entomologia Experimentalis et Applicata. 166: 752-760.
Tena, A., M. Senft, N. Desneux, J. Dregni & G.E. Heimpel. 2018. The influence of aphid-produced honeydew on parasitoid fitness and nutritional state: a comparative study. Basic and Applied Ecology 29: 55-68.
Wyckhuys, K.A.G., P. Wongtiem, A. Rauf, Thancharoen, G.E. Heimpel, T.T.N. Le, M.Z. Fanani, G.M. Gurr, J.G. Lundgren, D.D. Burra, L.K. Palao, G. Hyman, I. Graziosi, X.V. Le, M.J.W. Cock, T. Tscharntke, , S.D. Wratten, V.L. Nguyen, M.S. You, Y.H. Lu, J.W. Ketelaar, G. Goergen, P. Neuenschwander. 2018. Continental-scale suppression of an invasive pest by a host-specific parasitoid underlines both environmental and economic benefits of arthropod biological control. PeerJ 6: e5796.
2017
Boulton, R. A. and Heimpel, G.E. 2017. Potential for biological control of a parasite of Darwin's finches. Pages 23-28 in R. G. Van Driesche and R. C. Reardon, editors. Suppressing Over-Abundant Invasive Plants and Insects in Natural Areas by Use of their Specialized Natural Enemies. FHTET, USDA Forest Service, Morgantown, WV, USA.
Brodeur, J., A. E. Hajek, G. E. Heimpel, J. J. Sloggett, M. Mackauer, J. K. Pell, and W. Völkl. Predators, parasitoids and pathogens. 2017. in H. F. van Emden, editor. Aphids as Crop Pests - Second Edition. CABI.
Bulgarella, M., M. A. Quiroga, R.A. Boulton, I.E Ramirez, R.D. Moon, C.E. Causton, and G. E. Heimpel. 2017. Life cycle and host specificity of the parasitoid Conura annulifera (Hymenoptera: Chalcididae), a potential biological control agents of Philornis downsi (Diptera: Muscidae) in the Galapagos Islands. Annals of the Entomological Society of America 110: 317-328.
Delvare, G., G. E. Heimpel, H. Baur, D. D. Chadee, R. Martinez, and S. A. Knutie. 2017. Description of Brachymeria philornisae sp n. (Hymenoptera: Chalcididae), a parasitoid of the bird parasite Philornis trinitensis (Diptera: Muscidae) in Tobago, with a review of the sibling species. Zootaxa 4242:34-60.
Heimpel, G.E. 2017. Could biological control protect Darwin’s finches from an invasive parasite? Biocontrol News and Information 38: 21N-22N.
Heimpel, G.E. 2017. Message from the president: Interdisciplinary biological control. IOBC-Global Newsletter Issue 101 (June 2017).
Heimpel, G.E. 2017. President’s Column: Biological Control in Social Media. IOBC-Global Newsletter Issue 102 (December 2017).
Heimpel, G.E. & N.J. Mills. 2017. Biological Control: Ecology and Applications. Cambridge University Press. Cambridge, U.K.
Hopper, K. R., K. Lanier, J. H. Rhoades, K. A. Hoelmer, W. G. Meikle, G. E. Heimpel, R. J. O'Neil, D. G. Voegtlin, and J. B. Wooley. Host specificity of Aphelinus species collected from soybean aphid in Asia. Biological Control 115: 55-73.
Weis, J. J., P. J. Ode, and G. E. Heimpel. 2017. Balancing selection maintains sex determining alleles in multiple-locus complementary sex determination. Evolution 71:1246-1257.
2016
Asplen, M. K., J. M. Chacon, and G. E. Heimpel. 2016. Divergent sex-specific dispersal by a parasitoid wasp in the field. Entomologia Experimentalis et Applicata 159: 252-259.
Heimpel, G.E. 2016. We need more disease vector biological control. IOBC-NRS Newsletter 38: in press
Heimpel, G.E. 2016. Message from the president. IOBC-Global Newsletter Issue 100 (December 2016).
Kaiser M.C. & Heimpel GE. 2016. Parasitoid-induced transgenerational fecundity compensation in an aphid. Entomologia Experimentalis et Applicata 159: 197-206.
Kantar, M. B., C. E. Tyl, K. M. Dorn, X. Zhang, J. M. Jungers, J. M. Kaser, R. R. Schendel, J. O. Eckberg, B. C. Runck, M. Bunzel, N. R. Jordan, R. M. Stupar, M. D. Marks, J. A. Anderson, G. A. Johnson, C. C. Scheaffer, T. C. Schoenfuss, B. Ismail, G. E. Heimpel, and D. L. Wyse. 2016. Perennial grain and oilseed crops. Annual Review of Plant Biology 67:703-729.
Lahuatte, P., M. P. Lincango, G. E. Heimpel, and C. E. Causton. 2016. Rearing larvae of the avian nest parasite, Philornis downsi (Diptera: Muscidae) on chicken blood-based diets. Journal of Insect Science 16:84; 81-87.
Mohl, E. K., E. Santa-Martinez, and G. E. Heimpel. 2016. Interspecific differences in milkweeds alter predator density and the strength of trophic cascades. Arthropod-Plant Interactions 10:249-261.
Ode, P.J. & G.E. Heimpel. 2016. Editorial overview: Parasites/parasitoids/biological control: Communities without parasitoids? Current Opinion in Insect Science 14: viii- x.
Tena, A., F. L. Wackers, G. E. Heimpel, A. Urbaneja, and A. Pekas. 2016. Parasitoid nutritional ecology in a community context: the importance of honeydew and implications for biological control. Current Opinion in Insect Science 14:100-104.
Weis, JJ, Gray H & Heimpel GE. 2016. High hyperparasitism of Cotesia rubecula (Hymenoptera: Braconidae) in Minnesota and Massachusetts. Journal of the Kansas Entomological Society 89: 385-389.
2015
Bulgarella, M. and G. E. Heimpel. 2015. Host range and community structure of bird parasites in the genus Philornis (Diptera: Muscidae) on the Island of Trinidad. Ecology and Evolution. 5: 3696-3703.
Bulgarella, M., M. A. Quiroga, G. A. Brito Vera, J. S. Dregni, F. Cunninghamme, D. A. Mosquera, C. E. Causton, and G. E. Heimpel. 2015. Philornis downsi (Diptera: Muscidae), an avian nest parasite invasive to the Galapagos Islands, in mainland Ecuador. Annals of the Entomological Society of America 108: 242-250.
Eckberg, J. O., G. A. Johnson, R. E. Pain, D. L. Wyse, and G. E. Heimpel. 2015. Spillover of tent caterpillar (Malacasoma americanum) herbivory on willow bioenergy crops in an agricultural landscape. Annals of Applied Biology 167: 178-185.
Eckberg, J. O., J. A. Peterson, C. P. Borsh, J. M. Kaser, G. A. Johnson, J. C. Luhman, D. L. Wyse, and G. E. Heimpel. Field abundance and performance of hoverflies (Diptera: Syrphidae) on aphid prey: Implications for biological control of soybean aphid Aphis glycines). Annals of the Entomological Society of America 108: 26-34.
Heimpel, G. E. 2015. Rhinocyllus reconsidered. IOBC-NRS Newsletter 37(1):4.
Heimpel, G.E. 2015. Movable ecosystem services. IOBC-NRS Newsletter 37(2): 4.
Kaser, J. M. and G. E. Heimpel. Linking risk and efficacy in biological control in host-parasitoid models. 2015. Biological Control. 90: 49-60.
Koch, R. L., Z. Sezen, P. M. Porter, D. W. Ragsdale, K. A. G. Wyckhuys, and G. E. Heimpel. On-farm evaluation of a fall-seeded rye cover crop for suppression of soybean aphid (Hemiptera: Aphididae) on soybean. Agricultural and Forest Entomology 17: 239-246.
2014
Asplen, M. K., N. Bano, C. Brady, N. Desneux, K. R. Hopper, C. Malouines, K. Oliver, J. A. White, and G. E. Heimpel. 2014. Specialization of bacterial endosymbionts that protect aphids from parasitoids. Ecological Entomology 39: 763-769.
Brady, C. M., M. K. Asplen, G. E. Heimpel, K. R. Hopper, C. R. Linnen, K. M. Oliver, J. A. Wulff, and J. A. White. 2014. Worldwide populations of Aphis craccivora have diverse facultative bacterial symbionts. Microbial Ecology 67:195-204.
Dieckhoff, C., J. C. Theobald, F. L. Waeckers, and G. E. Heimpel. 2014. Egg load dynamics and the risk of egg and time limitation experienced by an aphid parasitoid in the field. Ecology and Evolution 4:1739-1750.
Dykstra, H. R., S. R. Weldon, A.J. Martinez; J. A. White, K. R. Hopper, G. E. Heimpel, M. K. Asplen, and K. M. Oliver. 2014. Factors limiting the spread of the protective symbiont Hamiltonella defensa in the aphid Aphis craccivora. Applied and Environmental Microbiology 80: 5818-5827.
Fahrner, S. J., J. P. Lelito, K. Blaedow, G. E. Heimpel, and B. H. Aukema. 2014. Factors Affecting the Flight Capacity of Tetrastichus planipennis (Hymenoptera: Eulophidae), a Classical Biological Control Agent of Agrilus planipennis (Coleoptera: Buprestidae). Environmental Entomology 43:1603-1612.
Heimpel, G. E. 2014. Biological control in the Galapagos Islands. IOBC-NRS Newsletter 36(1):4.
2013
Heimpel, G. E., Y. Yang, J. Hill, and D. W. Ragsdale. 2013. Environmental consequences of invasive species: greenhouse gas emissions of insecticide use and the role of biological control in reducing emissions. PLoS One 8:e72293.
Heimpel, G. E. 2013. Biocontrol Musings: A better worm. IOBC-NRS Newsletter 35(1):4.
Heimpel, G. E. 2013. Biocontrol Musings: How to expand the benefits of biological control. IOBC-NRS Newsletter 35(2):5.
Heimpel, G. E. 2013. Biocontrol Musings: A Boyle's eye view. IOBC-NRS Newsletter 35(3): 4.
Hopper, K. R., S. M. Prager, and G. E. Heimpel. 2013. Is parasitoid acceptance of different host species dynamic? Functional Ecology 27:1201-1211.
Wulff, J. A., K. Buckman, K. Wu, G. E. Heimpel, and J. A. White. 2013. The endosymbiont Arsenophonus is widespread in soybean aphid, Aphis glycines, but does not provide protection against parasitoids or a fungal pathogen. PLOS One 8(4): e62145.
2012
Chacon, J. M., M. K. Asplen, and G. E. Heimpel. 2012. Combined effects of host-plant resistance and intraguild predation on the soybean aphid parasitoid Binodoxys communis in the field. Biological Control 60:16-25.
De Boer, J. G., B. Kuijper, G. E. Heimpel, and L. W. Beukeboom. 2012. Sex determination meltdown upon biological control introduction of the parasitoid Cotesia rubecula? Evolutionary Applications 5:444-454.
Desneux, N., R. Blahnik, C. J. Delebeque, and G. E. Heimpel. 2012. Host phylogeny and specialisation in parasitoids. Ecology Letters 15:453-460.
Heimpel, G. E. 2012. Biocontrol Musings: Parasitoid Soldiers. IOBC-NRS Newsletter (Spring 2012) 34:4.
Heimpel, G. E. 2012. Biocontrol Musings: The human microbiome and medical biological control. IOBC-NRS Newsletter (Summer 2012) 34:8.
Heimpel, G. E. 2012. Biocontrol Musings: Unexpected outcomes of herbivory. IOBC-NRS Newsletter (Fall 2012) 34:6.
Herlihy, M. V., R. G. van Driesche, M. R. Abney, J. Brodeur, R. A. Casagrande, D. A. Delaney, T. Elkner et al. 2012. Distribution of Cotesia rubecula (Hymenoptera: Braconidae) and its displacement of Cotesia glomerata (Hymenoptera: Braconidae) in Eastern North America. Florida Entomologist 95:458-464.
Jervis, M. A., A. Moe, and G. E. Heimpel. 2012. The evolution of parasitoid fecundity: a paradigm under scrutiny. Ecology Letters 15:357-364.
Koch, R. L., P. M. Porter, M. M. Harbur, M. D. Abrahamson, K. A. G. Wyckhuys, D. W. Ragsdale, K. Koch et al. 2012. Response of soybean insects to an autum-seeded rye cover crop. Environmental Entomology 41:750-760.
Zhang, Y., K. A. G. Wyckhuys, M. K. Asplen, G. E. Heimpel, and K. Wu. 2012. Effect of Binodoxys communis parasitism on flight behavior of the soybean aphid, Aphis glycines. Biological Control 62:10-15.
2011
Asplen, M. K., K. A. G. Wyckhuys, and G. E. Heimpel. 2011. Parasitism of autumnal morphs of the soybean aphid, Aphis glycines (Hemiptera: Aphididae), by Binodoxys communis (Hymenoptera: Braconidae) on buckthorn. Annals of the Entomological Society of America 104:935-944.
Gagnon, A. E., J. Doyon, G. E. Heimpel, and J. Brodeur. 2011. Prey DNA detection success following digestion by intraguild predators: influence of prey and predator species. Molecular Ecology Resources:1022-1032.
Gagnon, A. E., G. E. Heimpel, and J. Brodeur. 2011. The ubiquity of intraguild predation among predatory arthropods. PLoS One 6:e28061.
Heimpel, G. E., and M. K. Asplen. 2011. A goldilocks hypothesis for dispersal of biological control agents. BioControl 56:441-450.
Heimpel, G. E., and M. K. Asplen. 2011. A 'goldilocks' hypothesis for dispersal of biological control agents, Pages 67-76 in H. Roy, P. De Clercq, L.-J. Lawson-Handley, J. J. Sloggett, R. Poland, and E. Wajnberg, eds. Invasive Alien Arthropod Predators and Parasitoids: An Ecological Approach. Dordrecht, The Netherlands, Springer.
Heimpel, G. E. 2011. Biocontrol Musings: Parasitoids are better taxonomists than entomologists are. IOBC-NRS Newsletter (Spring 2011) 33:4.
Heimpel, G. E. 2011. Biocontrol Musings: Biological control by dragonflies. IOBC-NRS Newsletter (Summer 2011) 33:4.
Heimpel, G. E. 2011. Biocontrol Musings: Oecophylla weaver ants provide multiple benefits to humans. IOBC-NRS Newsletter (Fall 2011) 33:4.
Ragsdale, D. W., D. A. Landis, J. Brodeur, G. E. Heimpel, and N. Desneux. 2011. Ecology and management of soybean aphid in North America. Annual Review of Entomology 56:375-399.
2010
Chacon, J., and G. E. Heimpel. 2010. Density-dependent intraguild predation of an aphid parasitoid. Oecologia 164:213-220.
Dieckhoff, C., and G. E. Heimpel. 2010. Determinants of egg load in the soybean aphid parasitoid Binodoxys communis. Entomologia Experimentalis et Applicata 136:254-261.
Gardiner, M., D. A. Landis, C. Gratton, N. Schmidt, M. O'Neal, E. Mueller, J. Chacon and G.E. Heimpel. 2010. Landscape composition influences the activity density of Carabidae and Arachnida in soybean fields. Biological Control 55:11-19.
Heimpel, G. E., L. E. Frelich, D. A. Landis, K. R. Hopper, K. A. Hoelmer, Z. Sezen, M. K. Asplen et al. 2010. European buckthorn and Asian soybean aphid as components of an extensive invasional meltdown in North America. Biological Invasions 12:2913-2931.
Heimpel, G. E. 2010. BioControl Musings: Leo's interpretation. IOBC-NRS Newsletter (Spring 2010):4.
Heimpel, G. E. 2010. BioControl Musings: Where's the Toids? IOBC-NRS Newsletter (Summer 2010):4.
Heimpel, G.E., 2010. Gastro-intestinal biological control. IOBC-NRS Newsletter (Fall 2010).
Noma, T., C. Gratton, M. Colunga-Garcia, M. J. Brewer, E. E. Mueller, G. E. Heimpel, and M. E. O'Neal. 2010. Relationship of soybean aphid (Hemiptera: Aphididae) to soybean plant nutrients, landscape structure, and natural enemies. Environmental Entomology 39:31-41.
Stary, P., E. Rakhshani, Z. Tomanovic, K. Hoelmer, N. G. Kavallieratos, J. Yu, M. Wang et al. 2010. A new species of Lysiphlebus Forster 1862 (Hymenoptera: Braconidae: Aphidiinae) attacking soybean aphid, Aphis glycines Matsumura (Hem., Aphididae) from China. Journal of Hymenoptera Research 19:184-191.
2009
Asplen, M. K., J. B. Whitfield, J. G. De Boer, and G. E. Heimpel. 2009. Is single-locus complementary sex determination the ancestral mechanism for hymenopteran haplodiploidy? Journal of Evolutionary Biology 22:1762-1769.
Desneux, N., R. J. Barta, C. J. Delebeque, and G. E. Heimpel. 2009a. Transient host paralysis as a means of reducing self-superparasitism in koinobiont endoparasitoids. Journal of Insect Physiology 55:321-327.
Desneux, N., R. J. Barta, K. A. Hoelmer, K. R. Hopper, and G. E. Heimpel. 2009b. Multifaceted determinants of host specificity in an aphid parasitoid. Oecologia 160:387-398.
Desneux, N., P. Stary, C. J. Delebeque, T. D. Gariepy, R. J. Barta, K. A. Hoelmer, and G. E. Heimpel. 2009c. Cryptic species of parasitoids attacking the soybean aphid (Hemiptera: Aphididae) in Asia: Binodoxys communis (Gahan) and Binodoxys koreanus (Hymenoptera: Braconidae: Aphidiinae). Annals of the Entomological Society of America 102:925-936.
Gardiner, M. M., D. A. Landis, C. Gratton, C. D. Difonzo, M. E. O'Neal, J. Chacon, M. Wayo, N. Schmidt & G.E. Heimpel 2009a. Landscape diversity enhances biological control of an introduced crop pest in the north-central USA. Ecological Applications 19:143-154.
Gardiner, M. M., D. A. Landis, C. Gratton, N. Schmidt, M. E. O'Neal, U. G. Mueller, J. Chacon, G.E. Heimpel & C.D. DiFonzo 2009b. Landscape composition mediates coccinellid community structure. Diversity and Distributions 15:554-564.
Heimpel, G.E. 2009. Biocontrol Musings: 4,000 years before Nicholson-Bailey. Page 4 in IOBC-NRS Newsletter (Spring 2009).
Heimpel, G.E. 2009 Biocontrol Musing: Poor Rhinocyllus. Page 4 in IOBC-NRS Newsletter. (Summer 2009)
Heimpel, G.E. 2009 Biocontrol Musings: Fast forward to Cedar Creek. Pages 1,4 in IOBC-NRS Newsletter. (Fall 2009)
Pexton, J. J., G. E. Heimpel, L. E. M. Vet, J. Whitfield, and P. J. Ode. 2009. Competition and brood reduction: testing alternative models of clutch-size evolution in parasitoids. Behavioral Ecology 20:403-409.
Wyckhuys, K. A. G., R. L. Koch, R. F. Kula, and G. E. Heimpel. 2009. Potential exposure of a classical biological control agent of the soybean aphid, Aphis glycines, on non-target aphids in North America. Biological Invasions 11:857-871.
Zhang, Y., K. M. Wu, K. A. G. Wyckhuys, and G. E. Heimpel. 2009. Trade offs between flight and fecundity in the soybean aphid (Hemiptera: Aphididae). Journal of Economic Entomology 102:133-138.
Zhang, Y., K. Wu, K. A. G. Wyckhuys, and G. E. Heimpel. 2009. Effect of parasitism on flight behavior of the soybean aphid, Aphis glycines. Biological Control 51: 475-479.
2008
Chacon, J. M., D. A. Landis, and G. E. Heimpel. 2008. Potential for biotic interference of a classical biological control agent of the soybean aphid. Biological Control 46: 216-225.
De Boer, J. G., P. J. Ode, L. E. M. Vet, J. Whitfield, and G. E. Heimpel. 2008. Experimental support for multiple-locus complementary sex determination in the parasitoid Cotesia vestalis. Genetics 180:1525-1535.
Heimpel, G. E. 2008. Biocontrol Musings: Harmonia 'Saddam' axyridis. Page 4 in IOBC-NRS Newsletter. (Spring 2008)
Heimpel, G. E. 2008. Biocontrol Musings: That's just gross. Page 6 in IOBC-NRS Newsletter. (Summer 2008)
Heimpel, G. E. 2008. Biocontrol Musings: Thwarted cats. Page 4 in IOBC-NRS Newsletter. (Fall 2008)
Heimpel, G. E., and J. Casas. 2008. Parasitoid foraging and oviposition behaviour in the field, Pages 51-70 in E. Wajnberg, C. Bernstein, and J. J. M. Van Alpen, eds. Behavioural Ecology of Insect Parasitoids. Oxford, U.K., Blackwell Publishing.
Heimpel, G.E. and J.G. De Boer. 2008. Sex determination in the Hymenoptera. Annual Review of Entomology 53: 209-230.
Lee, J.C. and G.E. Heimpel. 2008. Effect of floral nectar, water, and feeding frequency on Cotesia glomerata longevity. BioControl 53: 289-294.
Lee, J.C. and G.E. Heimpel. 2008. Floral resources impact longevity and oviposition rate of a parasitoid in the field. Journal of Animal Ecology 77: 565-572.
Wäckers, F.L., P.C.J. van Rijn, and G.E. Heimpel. 2008 Honeydew as a food source for natural enemies: making the best of a bad meal? Biological Control 45: 176-184.
Wyckhuys, K. A. G., L. Stone, N. Desneux, K. A. Hoelmer, K. R. Hopper, and G. E. Heimpel. 2008. Parasitism of the soybean aphid, Aphis glycines, by Binodoxys communis (Hymenoptera: Braconidae): the role of aphid defensive behavior and parasitoid reproductive performance. Bulletin of Entomological Research 98: 361-370.
Wyckhuys, K. A. G., J. E. Strange-George, C. A. Kulhanek, F. L. Wackers, and G. E. Heimpel. 2008. Sugar feeding by the aphid parasitoid Binodoxys communis: how does honeydew compare to other sugar sources? Journal of Insect Physiology 54: 481-491.
Zhang, Y., L. Wang, K. Wu, K. A. G. Wyckhuys, and G. E. Heimpel. 2008. Flight performance of the soybean aphid, Aphis glycines (Hemiptera: Aphididae) under different temperature and humidity regimens. Environmental Entomology 37: 301-306.
2007
De Boer, J. G., P. J. Ode, L. E. M. Vet, J. Whitfield, and G. E. Heimpel. 2007. Complementary sex determination in the parasitoid wasp Cotesia vestalis (= C. plutellae). Journal of Evolutionary Biology 20:340-348.
De Boer, J. G., P. J. Ode, L. E. M. Vet, J. Whitfield, and G. E. Heimpel. 2007. Diploid males sire triploid daughters and sons in the parasitoid wasp Cotesia vestalis. Heredity 99:288-294.
De Boer, J. G., P. J. Ode, L. E. M. Vet, J. Whitfield, and G. E. Heimpel. 2007. Multiple locus complementary sex determination in the parasitoid wasp Cotesia vestalis. Journal of Insect Science 7:5-6.
Gruber, K., J. G. de Boer, and G. E. Heimpel. 2007. Evolution of the complementary sex determiner gene: A phylogenetic perspective on complementary sex determination in the Hymenoptera. Journal of Insect Science 7:7-7.
Heimpel, G. E. 2007. Biocontrol Musings: Biological control by ants - for ants Page 4 in IOBC-NRS Newsletter. (Fall 2007)
Krischik, V. A., A. L. Landmark, and G. E. Heimpel. 2007. Soil-applied imidacloprid is translocated to nectar and kills nectar-feeding Anagyrus pseudococci (Girault) (Hymenoptera: Encyrtidae). Environmental Entomology 36:1238-1245.
Lee, J. C., and G. E. Heimpel. 2007. Sugar feeding reduces short-term activity in a parasitoid wasp. Physiological Entomology 32:99-103.
Wu, Z., and G. E. Heimpel. 2007. Dynamic egg maturation strategies in an aphid parasitoid. Physiological Entomology 32:143-149.
Wyckhuys, K. A. G., and G. E. Heimpel. 2007. Response of the soybean aphid parasitoid Binodoxys communis (Gahan) (Hymenoptera: Braconidae) to olfactory cues from target and non-target host-plant complexes. Entomologia Experimentalis et Applicata 123:149-158.
Wyckhuys, K. A. G., K. R. Hopper, K.-M. Wu, C. Straub, C. Gratton, and G. E. Heimpel. 2007. Predicting potential ecological impact of soybean aphid biological control introductions. Biocontrol News and Information 28:30N - 34N.
Wyckhuys, K. A. G., R. L. Koch, and G. E. Heimpel. 2007. Physical and ant-mediated refuges from parasitism: implications for non-target effects in biological control. Biological Control 40: 306-313.
2006
Kaya, H. K., M. Coll, G. E. Heimpel, M. S. Hunter, J. W. Kloepper, D. TeBeest, J. D. Vandenberg et al. 2006. Thank you to Charu. Biological Control 38:296-296.
Lee, J. C., D. A. Andow, and G. E. Heimpel. 2006. Influence of floral resources on sugar feeding and nutrient dynamics of a parasitoid in the field. Ecological Entomology 31:470-480.
Lee, J.C., Leibee, G.L. & Heimpel, G.E., 2006. Broken wing fringe setae as a relative estimate of parasitoid age. Entomologia Experimentalis et Applicata 121: 87-92.
Wäckers, F. L., J. C. Lee, G. E. Heimpel, K. Winkler, and R. Wagenaar. 2006. Hymenopteran parasitoids synthesize 'honeydew-specific' oligosaccharides. Functional Ecology 20:790-798.
2005
Carrillo, M. A., G. E. Heimpel, R. D. Moon, C. A. Cannon, and W. D. Hutchinson. 2005. Cold hardiness of Habrobracon hebetor (Say) (Hymenoptera: Braconidae), a parasitoid of pyralid moths. Journal of Insect Physiology 51:759-768.
Gagnon, A.E., Brodeur, J., & Heimpel, G.E. 2005. Detection of intraguild predation between coccinellids using molecular analyses of gut-contents. In Proceedings of the International Symposium on Biological Control of Aphids and Coccids, pp. 155-159, Tsuruoka, Japan.
Heimpel, G. E., and M. A. Jervis. 2005. Does floral nectar improve biological control by parasitoids?, Pages 267-304 in F. Waeckers, P. van Rijn, and J. Bruin, eds. Plant-provided food and plant-carnivore mutualism. Cambridge, UK, Cambridge University Press.
Heimpel, G. E., C. Neuhauser, and D. A. Andow. 2005. Natural enemies and the evolution of resistance to transgenic insecticidal crops by pest insects: the role of egg mortality. Environmental Entomology 34:512-526.
Heimpel, G. E., P. M. Porter, D. W. Ragsdale, R. L. Koch, and B. Potter. 2005. The potential role of insect suppression in increasing the adoption of cover crops. M. S. Hoddle, ed. Second International Symposium on Biological Control of Arthropods:185-191.
Jervis, M. A., and G. E. Heimpel. 2005. Phytophagy, Pages 525-550 in M. A. Jervis, ed. Insects as Natural Enemies: a Practical Perspective. Dordrecht, The Netherlands, Springer.
Lee, J. C., and G. E. Heimpel. 2005. Impact of sugar feeding on parasitoid behavior in the field. M. S. Hoddle, ed. Second International Symposium on Biological Control of Arthropods:398-408.
Lee, J. C., and G. E. Heimpel. 2005. Impact of flowering buckwheat on lepidopteran cabbage pests and their parasitoids at two spatial scales. Biological Control 34:290-301.
Wold-Burkness, S. J., W. D. Hutchison, J. C. Lee, R. L. Hines, P. C. Bolin, and G. E. Heimpel. 2005. A long-term survey of parasitoid species composition and parasitism of Trichoplusia ni (Lepidoptera : Noctuidae), Plutella xylostella (Lepidoptera : Plutellidae), and Pieris rapae (Lepidoptera : Pieridae) in Minnesota cabbage. Journal of Entomological Science 40:211-221.
Wu, Z., K. R. Hopper, P. J. Ode, R. Fuester, M. Tuda, and G. E. Heimpel. 2005. Single-locus complementary sex determination absent in Heterospilus prosopidis (Hymenoptera: Braconidae). Heredity 95:228-234.
2004
Heimpel, G. E., J. C. Lee, Z. Wu, L. Weiser, F. Wackers, and M. A. Jervis. 2004. Gut sugar analysis in field-caught parasitoids: adapting methods originally developed for biting flies. International Journal of Pest Management 50:193-198.
Heimpel, G.E., D.W. Ragsdale, R. Venette, K.R. Hopper, R.J. O’Neil, C. Rutledge & Z. Wu. 2004. Prospects for importation biological control of the soybean aphid: anticipating potential costs and benefits. Annals of the American Entomological Society 97: 249-258.
Heimpel, G. E., and T. E. Shelly. 2004. The soybean aphid: a review of its biology and management. Annals of the Entomological Society of America 97:203.
Hoogendoorn, M. & G.E. Heimpel 2004. Competitive interactions between an exotic and a native ladybeetle: a field cage study. Entomologia Experimentalis et Applicata 111: 19-28.
Jervis, M. A., J. C. Lee, and G. E. Heimpel. 2004. Use of behavioural and life-history studies to understand the effects of habitat manipulation, Pages 65-100 in G. M. Gurr, and S. D. Wratten, eds. Ecological Engineering for Pest Management. Collingwood, Victoria, Australia, CSIRO.
Lee, J. C., and G. E. Heimpel. 2004. Dynamics of parasitoids and nectar sources. M. S. Hoddle, ed. California Conference on Biological Control 4:40-44.
Lee, J.C., G.E. Heimpel & G. Leibee. 2004. Comparing floral nectar and aphid honeydew diets on the longevity and nutrient levels of a parasitoid wasp. Entomologia Experimentalis et Applicata 111: 189-199.
Weiser, L., M. F. Antolin, Z. Wu, and G. E. Heimpel. 2004. Does temperature affect diploid male production in Habrobracon hebetor (Say)(Hymenoptera: Braconidae)? Journal of Hymenoptera Research 13:103-109.
Wu, Z., K. R. Hopper, R. J. O'Neil, D. J. Voegtlin, D. R. Prokrym, and G. E. Heimpel. 2004. Reproductive compatibility and genetic variation between two strains of Aphelinus albipodus (Hymenoptera: Aphelinidae), a parasitoid of the soybean aphid, Aphis glycines (Homoptera: Aphididae). Biological Control 31:311-319.
Wu, Z., Schenk-Hamlin, D., Zhan, W., Ragsdale, D.W. & G.E. Heimpel. 2004. The soybean aphid in China – a historical review. Annals of the American Entomological Society 97: 209-218.
2003
Antolin, M.F., P.J. Ode, G.E. Heimpel, R.B. O'Hara & M.R. Strand. 2003. Population genetics, mating system, and sex allele diversity of the parasitoid Bracon hebetor (Say) (Hymenoptera: Braconidae). Heredity 91: 373-381.
Heimpel, G.E. & J.C. Lee 2003. Flowering cover crops and biological control of cabbage pests. NC IPM: For Our environment, For Our Future. North Central Regional Integrated Pest Management Grants Program 1998-2000.
Heimpel, G.E., J.C. Lee & Z. Wu. 2003. Field oviposition rates in sugar-fed and sugar-starved parasitoids. Proceedings of 12th International Entomophagous Insects Workshop. Journal of Insect Science 3:33. http://www.insectscience.org/3.33/
Heimpel, G.E., C. Neuhauser & M. Hoogendoorn. 2003. Effects of parasitoid fecundity and host resistance on indirect interactions in host-parasitoid population dynamics. Ecology Letters 6: 556-566.
Hoogendoorn, M. & G.E. Heimpel. 2003. PCR-based cut content analysis of insect predators: using ribosomal ITS-1 fragments from prey to estimate predation frequency. Proceedings of the 1st International Symposium on Biological Control of Arthropods. Honolulu, Hawaii, 1/2002. Pp. 91 – 97.
Jervis, M.A., P. Ferns & G.E. Heimpel. 2003. Body size and the timing of reproduction in parasitoid wasps: a comparative analysis. Functional Ecology 17: 375-383.
Koch, R., W.D. Hutchison, R. Venette & G.E. Heimpel 2003. Susceptibility of immature Danaus plexippus (Lepidoptera: Nymphalidae) to predation by Harmonia axyridis (Coleoptera: Coccinellidae). Biological Control 28: 265-270.
Landis, D.A., Brewer, M.J., & Heimpel, G.E. (2003). Soybean Aphid Parasitoid Questionnaire 2003. NCR-125 Michigan State Report: on-line at http://www.ncera125.ent.msu.edu/StateRpts2003MI.htm
Lee, J.C. & G.E. Heimpel. 2003. Sugar feeding by parasitoids in cabbage fields and the consequences for pest control. Proceedings of the 1st International Symposium on Biological Control of Arthropods. Honolulu, Hawaii, 1/2002. Pp. 220 – 225.
Lundgren, J.G. & G.E. Heimpel. 2003. Augmentation of Trichogramma brassicae for Control of Cruciferous Lepidoptera. Proceedings of the 1st International Symposium on Biological Control of Arthropods. Honolulu, Hawaii, 1/2002. Pp. 160 – 166.
Lundgren, J.G. & G.E. Heimpel. 2003. Quality assessment for three species of commercially-produced Trichogramma. Biological Control 26: 68-73.
Neuhauser, C., D.A. Andow, G.E. Heimpel, G. May, R. Shaw & S. Wagenius. 2003. Community Genetics – expanding the synthesis of ecology and genetics. Ecology 84: 545-558.
Vickery, J. & G.E. Heimpel 2003. Biological control of musk thistle: is it worth the risk?. The Thicket! An online newsletter of the IPM division of the Minnesota Dept. of Agriculture. Volume 2 no. 1 – Winter 2003. http://www.mda.state.mn.us/ipm/thicket/v2n1a5.htm.
Wu, Z., K.R. Hopper, P.J. Ode, R.W. Fuester, J. Chen & G.E. Heimpel. 2003. Complementary sex determination in hymenopteran parasitoids and its implications for biological control. Entomologica Sinica 10: 81-93.
2002
Hoogendoorn, M. & G.E. Heimpel. 2002. Indirect interactions between an introduced and a native ladybird beetle species mediated by a shared parasitoid. Biological Control 25: 224-230.
Lundgren, J.G., G.E. Heimpel & S.A. Bomgren. 2002. Comparison of Trichogramma brassicae (Hymenoptera: Trichogrammatidae) augmentation with organic and synthetic pesticides for control of cruciferous Lepidoptera. Environmental Entomology 31: 1231-1239.
2001
Fadamiro, H.Y & G.E. Heimpel. 2001. Effects of partial sugar deprivation on lifespan and carbohydrate mobilization in the parasitoid Macrocentrus grandii (Hymenoptera: Braconidae). Annals of the Entomological Society of America 94: 909-916.
Heimpel, G.E. & F. Meloche. 2001. Biological control of alfalfa blotch leafminer (Diptera: Agromyzidae) in Ontario: status and ecology of parasitoids 20 years after introduction (Hymenoptera: Braconidae and Eulophidae). Great Lakes Entomologist 34: 17-26.
Hoogendoorn, M. & G.E. Heimpel. 2001. PCR-based gut content analysis of insect predators: using ribosomal ITS-1 fragments from prey to estimate predation frequency. Molecular Ecology 10: 2059-2067.
Jervis, M.A., Heimpel, G.E., Ferns, P., Harvey, J. & Kidd, N.A.C. 2001. Life-history strategies of parasitoid wasps: a comparative analysis of 'ovigeny'. Journal of Animal Ecology 70: 442-458.
2000
Heimpel, G.E. 2000. Alfalfa blotch leafminer update: Biological control the best long-term option. Forage Clippings; Minnesota Forage and Grassland Council 7:1-2.
Heimpel, G.E. 2000. Biological Control of Insect Pests in Garden Settings: Commercially Available Beneficial Insects. Yard & Garden Line News Volume 2 Number 11: http://www.extension.umn.edu/yardandgarden/YGLNews/YGLN-July1500.html#IPM
Heimpel, G.E. 2000. Effects of parasitoid clutch size on host parasitoid population dynamics. In Hochberg, M.E. & A.R. Ives (eds.): Parasitoid Population Biology. Princeton University Press. Pp. 27-40.
Heimpel, G.E., D.A. Andow, J.G. Lundgren & S. Mahr. 2000 Release methods for Trichogramma parasitoids. Biological Control Fact Sheet – NCR-125 Committee web-based document (series edited by D. Landis). http://www.cips.msu.edu/ncr125/GuideTricho.htm
Heimpel, G.E, Lundgren J.G. 2000. Sex ratios of commercially-reared biological control agents. Biological Control 19: 77-93.
Olson, D.M., H. Fadamiro, J.G. Lundgren & G.E. Heimpel. 2000. Effects of sugar meals on carbohydrate and lipid metabolism in a parasitoid wasp. Physiological Entomology 25: 17-26.
Rosenheim, J.A., Heimpel, G.E. & Mangel, M. 2000. Egg maturation, egg resorption and the costliness of transient egg limitation in insects. Proceedings of the Royal Society of London, Series B 267: 1565-1573.
1999
Bartels, D., R. Venette, E. Burkness, P. O'Rourke, W.D. Hutchison, & G.E. Heimpel. 1999. Alfalfa blotch leafminer update. Minnesota Pest Report, MPR 2-99, Ag Marketing & Dev. Div., Minn. Dept. Agr.
Heimpel, G.E. 1999. Biological control of agricultural pests in Minnesota. Proceedings of the 1999 Minnesota Crop Pest Management Short course. University of Minnesota Extension Service.
Heimpel, G.E., M.F. Antolin & M.S. Strand. 1999. Diversity of sex-determining alleles in Bracon hebetor. Heredity 82: 282-291.
Holloway, A., G.E. Heimpel, M.S. Strand & M.F. Antolin. 1999. Survival of diploid males in Bracon nr. hebetor. Annals of the Entomological Society of America 92:110-116.
Kattari, D, G.E. Heimpel, P.J. Ode & J.A. Rosenheim. 1999. Hyperparasitism by Ablerus clisiocampae (Hymenoptera: Aphelinidae). Proceedings of the Entomological Society of Washington 101: 640-644.
Lundgren, J.G., R.C. Venette, J. Gavloski, W.D. Hutchison & G.E. Heimpel. 1999. Distribution of the exotic pest, Agromyza frontella (Diptera: Agromyzidae), in Manitoba, Canada. Great Lakes Entomologist 32: 177-184.
1998
Heimpel, G.E. & J.A. Rosenheim. 1998. Egg limitation in insect parasitoids: a review of the evidence and a case study. Biological Control 11: 160-168.
Heimpel, G.E., M. Mangel & J.A. Rosenheim. 1998. Effects of egg and time limitation on lifetime reproductive success of a parasitoid in the field. American Naturalist 152: 273-289.
Mangel, M. & G.E. Heimpel. 1998. Reproductive senescence and dynamic oviposition behavior in insects. Evolutionary Ecology 12: 871-879.
1997
Heimpel, G.E. 1997. Extraordinary sex ratios for extraordinary reasons. Trends in Ecology and Evolution 12: 298-299.
Heimpel, G.E. 1997. Hymenopteran sex ratios: reply from G.E. Heimpel. Trends in Ecology and Evolution 12: 489.
Heimpel, G.E., M.F. Antolin, R. Franqui & M.R. Strand. 1997. Genetic divergence and reproductive isolation between two "strains" of Bracon hebetor. Biological Control 9: 149-156.
Heimpel, G.E., J.A. Rosenheim & D. Kattari. 1997. Adult feeding and lifetime reproductive success in the parasitoid Aphytis melinus. Entomologia Experimentalis et Applicata 83: 305-315.
Heimpel, G.E., J.A. Rosenheim & M. Mangel. 1997. Predation on adult Aphytis parasitoids in the field. Oecologia 110: 346-352.
1996
Heimpel, G.E. & T.R. Collier. 1996. The evolution of host-feeding behaviour in insect parasitoids. Biological Reviews 71: 373-400.
Heimpel, G.E., J.A. Rosenheim & M. Mangel. 1996. Egg limitation, host quality, and dynamic behavior in a parasitoid wasp. Ecology 77: 2410-2420.
Jervis, M.A., N.A.C. Kidd, & G.E. Heimpel. 1996. Parasitoid adult feeding and biological control – a review. Biocontrol News and Information 17: 1N-22N.
1995
Hardy, I.C.W., J.J.M. van Alphen, G.E. Heimpel, & P.J. Ode 1995. Entomophagous insects: progress in evolutionary and applied ecology. Trends in Ecology and Evolution 10: 96-97.
Heimpel, G.E. & J.A. Rosenheim 1995. Dynamic host feeding by the parasitoid Aphytis melinus: the balance between current and future reproduction. Journal of Animal Ecology 64: 153-167.
1994
Heimpel, G.E. 1994. Virginity and the cost of insurance in highly inbred Hymenoptera. Ecological Entomology 19: 299-302.
Heimpel, G. E. & J. A. Hough-Goldstein 1994. Components of the functional response of Perillus bioculatus (Hemiptera: Pentatomidae). Environmental Entomology 23: 855-959.
Heimpel, G.E. & J.A. Hough-Goldstein 1994. Search tactics and response to cues by predatory stink bugs. Entomologia Experimentalis et Applicata 73: 193-197.
Heimpel, G.E., J.A. Rosenheim & J.M. Adams 1994. Behavioral ecology of host feeding in Aphytis parasitoids. Proceedings of the 7th European Workshop on Insect Parasitoids: Norwegian Journal of Agricultural Sciences Supplement 16: 101-115.
Rosenheim, J.A. & G.E. Heimpel 1994. Sources of intraspecific variation in oviposition and host-feeding behavior. In: Rosen, D. (ed.): Recent Advances in the Study of Aphytis, pp. 41-78. Intercept press, Andover, UK.
1993
Hough-Goldstein, J.A., G.E. Heimpel, H.E. Bechman & C.E. Mason 1993. Arthropod natural enemies of the Colorado potato beetle. Crop Protection 12: 324-334.
1992
Heimpel, G. E. & J. A. Hough-Goldstein 1992. A survey of arthropod predators of the Colorado potato beetle (Col.: Chrysomelidae) in Delaware potato fields. Journal of Agricultural Entomology 9: 137-142.
1989
Heimpel, G.E. 1989. Ecology and natural management of voles in apple orchards. Rodale press, Emmaus, PA. 13 pp.