Insect Ecology at NDSU The Harmon Lab











Articles are linked to publisher's web page. If you do not have access email me for a pdf.

You may also be interested in my listing on researchgate.

Harmon, JP and A Daigh. 2017. Attempting to predict the plant-mediated trophic effects of soil salinity: a mechanistic approach to supplementing insufficient information. Food Webs, 13, 67-79.

Miller, CR, BT Barton, L Zhu, VC Radeloff, KM Oliver, J Harmon, and AR Ives. 2017. Combined effects of night warming and light pollution on predator-prey interactions. Proceedings of the Royal Society B: Biological Sciences, 284, 20171195.

Eichele-Nelson JL, AF Wick, TM DeSutter, JP Harmon. 2017. The effects of salinity on the herbivorous crop pest Tetranychus urticae (Trombidiformes: Tetranychidae) on soybean and corn. Environmental Entomology 46:839-846.

Kral, KC, RF Limb, JP Harmon, TJ Hovick. 2017. Arthropods and fire: Previous research shaping future conservation. Rangeland Ecology & Management 70:589-598.

Speights CJ, JP Harmon, BT Barton. 2017. Contrasting the potential effects of daytime versus nighttime warming on insects. Current Opinions in Insect Science 23:1-6.

Kraft, LJ, J Kopco, JP Harmon, KM Oliver. 2017. Aphid symbionts and endogenous resistance traits mediate competition between rival parasitoids. PLoS ONE 12(7):e0180729. https://

Sunoj, S, S Sivarajan, M Mararlooei, S Bajwa, J Harmon, J Nowatzki, I Cannayen. 2017. Identification and counting of soybean aphids from digital images using shape classification. Transactions of the ASABE, 60(5), 1467-1477.

Maharlooei, M, S Sivarajan, SG Bajwa, JP Harmon, J Nowatzki. 2017. Detection of soybean aphids in a greenhouse using an image processing technique. Computers and Electronics in Agriculture 132:63-70.

Eichele, JL, J Dreyer, R Heinz, S Foster, DA Prischmann-Voldseth, JP Harmon. 2016 Soybean aphid response to their alarm pheromone E-β-Fernesene (EBF). Journal of Insect Behavior 29:385-394.

Martinez, AJ, KL Kim, JP Harmon, and KM Oliver. 2016. Specificity of multi-model aphid defense against two rival parasitoids. PloS ONE 11:e0154670.

Butcher, K, AF Wick, T DeSutter, A Chatterjee, J Harmon. 2016. Soil salinity: A threat to global food security. Agronomy Journal 108:2189-2200.

Burdick, SC, DA Prischmann-Voldseth, and JP Harmon. 2015. Density and distribution of soybean aphid, Aphis glycines Matsumura (Hemiptera: Aphididae) in response to UV radiation. Population Ecology 57:457-466.

Whalen R and JP Harmon. 2015. Temperature alters the interaction between a herbivore and a resistant host plant. Arthropod-Plant Interactions 9:233-240.

Meisner MH, JP Harmon, and AR Ives. 2014. Temperature effects on long-term population dynamics in a parasitoid-host system. Ecological Monographs 84:457-476.

Solga, MJ, JP Harmon, and AC Ganguli. 2014. Timing is everything: An overview of phenological changes to plants and their pollinators. Natural Areas Journal 34:227-234.

Abbott, KC, JP Harmon, and NS Fabina. 2014. The challenge of predicting temperature effects on short-term predator-prey dynamics. Population Ecology 56:375-392.

Foster SP, K Anderson, JP Harmon. 2014. Increased allocation of adult-acquired carbohydrate to egg production results in its decreased allocation to sex pheromone production in mated females of the moth Heliothis virescens. Journal of Experimental Biology 217:499-506.

Harmon, JP, BT Barton. 2013. On their best behavior: how animal behavior can help determine the combined effects of species interactions and climate change. Annals of the New York Academy of Sciences 1297:139-147.

Behm, JE, DA Edmonds, JP Harmon, and AR Ives. 2013. Multilevel statistical models and the analysis of experimental data. Ecology 94:1479-1486.

Ganehiarachchi, GASM, KM Anderson, JP Harmon, and MO Harris. 2013. Why oviposit there? Fitness consequences of a gall midge choosing the plant's youngest leaf. Environmental Entomology 42:123-130.

Whalen, R and JP Harmon. 2012. Rag1 aphid resistant soybeans alter the movement and distribution of soybean aphid (Hemiptera: Aphididae). Environmental Entomology 41:1426-1434.

Ballman, ES, K Ghising, DA Prischmann-Voldseth, and JP Harmon. 2012. Factors contributing to the poor performance of a soybean aphid parasitoid (Hymenoptera: Braconidae) on an herbivore resistant soybean cultivar. Environmental Entomology 41:1417-1425.

Ghising, K. J. J. P. Harmon, P. B. Beauzay, D. A. Prischmann-Voldseth, T. C. Helms, P. J. Ode, and J. J. Knodel. 2012. Impact of Rag1 aphid resistant soybeans on Binodoxys communis (Hymenoptera: Braconidae), a parasitoid of soybean aphid (Hemiptera: Aphididae). Environmental Entomology 41:282-288.

Harris, M. O., T. P. Freeman, K. M. Anderson, J. P. Harmon, J. A. Moore, S. A. Payne, O. Rohfritsch, and J. J. Stuart. 2012. Hessian fly Avirulence gene loss-of-function defeats plant resistance without compromising the larva's ability to induce a gall tissue. Entomologia Experimentalis et Applicata 145:238-249.

Herlihy, M. V., R. G. Van Driesche, M. R. Abney, J. Brodeur, R. A. Casagrande, D. A. Delaney, T. Elkner, S. J. Fleischer, R. L. Groves, D. S. Grunner, J. P. Harmon, G. E. Heimpel, T. P. Kuhar, C. Maund, R. D. Olmstead, A. M. Seaman, M. Skinner, R. Weinziel, K. V. Yeargan, S. Zendrei. Distribution of Cotesia rubecula (Hymenoptera: Braconidae) and its displacement of Cotesia glomerata (Hymenoptera: Braconidae) in Eastern North America. Florida Entomologist 95:458-464.

Werling, B. P., J. Harmon, C. Straub, C. Gratton. 2012. Influence of native North American prairie grasses on predation of an insect herbivore of potato. Biological Control 61:15-25.

Harmon, JP, AC Ganguli, and M Solga. 2011. An overview to pollination in rangelands: who, why, and how. Rangelands 33(3):4-8.

Ganguli, AC and JP Harmon. 2011. An introduction to the special issue on pollinators. Rangelands 33(3):3.

Meisner, M. H., J. P. Harmon, and A. R. Ives. 2011. Response of coccinellid larvae to conspecific and heterospecific larval tracks: a mechanism that reduces cannibalism and intraguild predation. Environmental Entomology 40(1):103-110.

Meisner, M, J. P. Harmon, C. T. Harvey, and A. R. Ives. 2011. Intraguild predation on the parasitoid Aphidius ervi by the generalist predator Harmonia axyridis: the threat and its avoidance. Entomologia Experimentalis et Applicata 138(3):193-201.

Harmon, JP, NA Moran, and AR Ives. 2009. Species response to environmental change: Impacts of food-web interactions and evolution. Science 323:1347-1350.

Harmon, JP, A Hyden, and DA Andow. 2008. Isolation enhances mating propensity in Coleomegilla maculata (Coleoptera: Coccinellidae). Journal of Insect Behavior 21:495-504.

Francke, DL, JP Harmon, CT Harvey, and AR Ives. 2008. Pea aphid dropping behavior diminishes foraging efficiency of multiple life stages of a predatory ladybeetle. Entomologia Experimentalis et Applicata 127:118-124.

Harmon, J. P., Stephens, E., Losey, J. 2007. The decline of native coccinellids (Coleoptera: Coccinellidae) in the United States and Canada. Journal of Insect Conservation 11:85-94.

Meisner, M., J. P. Harmon, and A. R. Ives. 2007. Presence of an unsuitable host diminishes the competitive superiority of an insect parasitoid: a distraction effect. Population Ecology 49:347-355.

Harmon, J. P., and D. A. Andow. 2007. Behavioral mechanisms underlying ants' density-dependent deterrence of aphid-eating predators. Oikos 116:1030-1036.


Daugherty, M. P, J. P. Harmon, and C. J. Briggs. 2007. Trophic supplements to intraguild predation. Oikos 116:662-677.


Rosenheim, J. A. and Harmon, J. P. 2006. The influence of intraguild predation on the suppression of a shared prey population: an empirical reassessment. - In: Brodeur, J. and Boivin, G. (eds.), Trophic and Guild Interactions in Biological Control. Springer. pp. 1-20.

Harmon, J. P., and D. A. Andow. 2004. Indirect effects between shared prey: Predictions for biological control. Biocontrol 49:605-626.

White, J. A., J. P. Harmon, and D. A. Andow. 2004. Ecological context for examining transgenic crops and their effects on crop production. Journal of Crop Improvement 12:457-489.

Harmon, J. P., E. E. Hladilek, J. L. Hinton, T. J. Stodola, and D. A. Andow. 2003. Herbivore response to vegetational diversity: Spatial interaction of resources and natural enemies. Population Ecology 45:75-81.

Harmon, J. P., J. A. White, and D. A. Andow. 2003. Oviposition behavior of Ostrinia nubilalis (Lepidoptera: Crambidae) in response to potential intra- and interspecific interactions. Environmental Entomology 32:334-339. _

Harmon, J. P., and D. A. Andow. 2003. Alternative foods as a mechanism to enhance a generalist ladybird's predation of target prey. In: Van Driesche, R. G. (ed.) Proceedings of the First International Symposium on Biological Control of Arthropods, January 14-18, 2002. Honolulu, Hawaii, USA. U. S. Department of Agriculture, Forest Service, FHTET-03-05, Morgantown, West Virginia, USA, pp. 244-249.

Harmon, J. P., and D. A. Andow. 2001. Review of Theoretical Approaches to Biological Control. Quarterly Review of Biology 76:110.

Harmon, J. P., A. R. Ives, A. Olson, K. Ruwald, K. Gross, and J. E. Losey. 2000. The indirect effects of dandelions on aphids through a shared predator, Coleomegilla maculata. Oecologia 125:543-548.

Schellhorn, N. A., J. P. Harmon, and D. A. Andow. 2000. Using cultural practices to enhance insect pest control by natural enemies. In J. E. Rechcigl, N. A. Rechcigl (eds.) Insect Pest Management: Techniques for Environmental Protection. Lewis Publishers, Boca Raton, FL. pp. 147-170.

Harmon, J. P., J. E. Losey, and A. R. Ives. 1998. The role of vision and color in the close proximity foraging behavior of four coccinellid species. Oecologia 115:287-292.

Losey, J. E., A. R. Ives, J. P. Harmon, F. Ballantyne, and C. Brown. 1997. A polymorphism maintained by opposite patterns of parasitism and predation. Nature 388:269-272.

Schooler, S., A. R. Ives, and J. P. Harmon. 1996. Hyperparasitoid aggregation in response to variation in Aphidius ervi host density at three spatial scales. Ecological Entomology 21:249-258.