Department of Entomology
123 W. Waters Hall
Kansas State University
Manhattan KS 66506-4004


785-532-6232 fax


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Michaud JPProfessor

Phone: (785) 625-3425
Fax: (785) 625-4369
Area(s) of Specialization:
Integrated Pest Management
Biological Control
Insect Ecology

Bio Brief

My background is in insect ecology, insect behavior, and biological control, particularly of aphids.  I am interested in developing improved IPM programs for the management of insect pests of field crops on the High Plains, particularly in the integration of biological control with other control tactics.  Examples include host plant resistance, agronomic and cultural practices, and insecticide seed treatments, all of which are important components of field crops IPM with the potential to interact with biological control agents and impact beneficial species.


B.S. Animal Behavior, McGill University, Montreal PQ Canada,
M.S. Pest Management, Simon Fraser University, Burnaby BC Canada,
Ph.D. Entomology, Simon Fraser University, Burnaby BC Canada,
Post Doctoral Associate , University of Florida, Citrus Research and Education C, 1996 - 2002.


My research program has several areas of focus.  One is the ecology and behavior of lady beetle species that are important biological control agents of cereal aphids on the High Plains, primarily Hippodamia convergens and Coleomegilla maculata.  Recent work has addressed maternal and paternal effects in these species and explored mate choice criteria and their fitness consequences.  Another focus is on the biology and management of insect pests of commercial sunflower, a crop that requires intensive insect management.  I also collaborate on a range of biological control research projects in a number of different countries.


Chu, Y., J.P. Michaud, J. Zhang, Z. li, Y. Wang, H. Chen, J. Li, Z. Lu, Q. Zhang & X. Liu. (2013) Performance of Microplitis tuberculifer (Hymenoptera: Braconidae) parasitizing Mythimna separata (Lepidoptera: Noctuidae) in different larval instars. Biol. Control (in press).

Vargas, G.A., J.P. Michaud & J.R. Nechols. (2013) Age-specific maternal effects interact with larval food supply to modulate a developmental poymorphism in Coleomegilla maculata. Ecol. Entomol. (in press).

Michaud, J.P., M. Bista, G. Mishra & Omkar. (2013) Sexual activity diminishes male virility in two Coccinella species: Consequences for female fertility and progeny development. Bull. Entomol. Res.103: 570-577.

Luo, S., J.C. Li, J.P. Michaud, Z. Lu, X.X. Liu & Q.W. Zhang. (2013) Odor learning in Microplitis mediator (Hymenoptera: Braconidae) is mediated by sugar type and physiological state. Biol. Control 65: 207-211.

Vargas, G.A., J.P. Michaud & J.R. Nechols. (2013) Trajectories of reproductive effort in two aphidophagous lady beetles respond to variation in both income and capital.  Environ. Entomol. 42: 341-353.

Wang, S., J.P. Michaud, X.L. Tan, L. Murray & F. Zhang. (2013) Melanism in a Chinese population of Harmonia axyridis (Coleoptera: Coccinellidae): A citerion for male investment with pleiotropic effects on behavior and fertility.  J. Ins. Behav. 26: 679-689.

Luo, S., J.P. Michaud, J.C. Li, J. Zhang, X.X. Liu & Q.W. Zhang (2013) Seasonal cues mediate host behaviour modification and cocoon polymorphism inMicroplitis mediator (Hymenoptera: Braconidae). Eur. J. Entomol. 110: 271-276.

Vargas, G.A., J.P. Michaud & J.R. Nechols. (2012) Cryptic maternal effects in the ladybird beetle Hippodamia convergens vary with maternal age and body size.  Entomol. Exp. Appl 146: 302-311.

Vargas, G.A., J.P. Michaud & J.R. Nechols. (2012) Larval food supply constrains female reproductive schedules in Hippodamia convergens (Coleoptera: Coccinellidae). Ann. Entomol. Soc. Am. 105: 832-839.

Vargas, G.A., J.P. Michaud & J.R. Nechols (2012) Maternal effects shape dynamic trajectories of reproductive allocation in the ladybird Coleomegilla maculata. Bull. Entomol. Res. 102: 558-565.

Noppe, Christophe, J.P. Michaud & Patrick LeClerq (2012) Intraguild predation between lady beetles and lacewings: Outcomes and consequences depend on focal prey and habitat complexity.  Ann. Entomol. Soc. Am. 105: 562-571.

Jalali, M.A. & J.P. Michaud (2012) Aphid-plant interactions affect the suitability of Myzus spp. as prey for the two spot ladybird, Adalia bipunctata.  Eur. J. Entomol. 109: 345-352.

Bayoumy, M.H. & J.P. Michaud (2012) Parasitism interacts with mutual interference to limit foraging efficiency in larvae of Nephus includens (Coleoptera: Coccinellidae). Biol. Control 62: 120-126.

Alabi, T., J. Dean, J.P. Michaud, F. Verheggen, G. Lognay & E. Haubruge. (2011) Does cuticular chemistry of the flour beetle, Tribolium brevicornis, deter cannibalism and predation of pupae? J. Ins. Sci. 11.114. Available online:

Fathi, S.A.A., N. Bakhshizadeh & J.P. Michaud. (2011) Spatial and temporal correspondence of sunn pest oviposition and egg parasitism by Trissolcus grandis in Firozabad, Iran.  J. Appl. Entomol. 135: 666-672.

Iranipour, S., A.K. Pakdel, G. Radjabi & J.P. Michaud. (2011) Life tables for sunn pest, Eurygaster integriceps (Heteroptera: Scutelleridae), in northern Iran. Bull. Entomol. Res. 101: 33-44. 

Wang, S., J.P. Michaud, X.L. Tan, F. Zhang & X.J. Guo. (2011) The aggregation behavior of Harmonia axyridis (Coleoptera: Coccinellidae) in Northeast China. BioControl 56: 193-206.

Michaud, J.P. & A.K. Grant. (2010) Variation in fitness of Dectes texanus (Coleoptera: Cerambycidae) as a function of host plant. Available online:

Rasekh, A., J.P. Michaud, A. Kharazi-Pakdel & H. Allahyari. (2010) Ant mimicry by an aphid parasitoid, Lysiphlebus fabarum (Hymenoptera:  Aphidiidae).  Available online:

Iranipour, S., B.Z. Nozad & J.P. Michaud. (2010) Thermal requirements of Trissolcus grandis (Hymenoptera: Scelionidae), an egg parasitoid of sunn pest.

Michaud, J.P., P.A. Stahlman, J.L. Jyoti & A.K. Grant. (2009) Plant spacing and weed control affect sunflower stalk insects and the girdling behavior of Dectes texanus (Coleoptera: Cerambycidae). J. Econ. Entomol. 102: 1044-1053.

Michaud, J.P. & A.K. Grant. (2009) The nature of resistance to Dectes texanus (Coleoptera: Cerambycidae) in wild sunflower, Helianthus annuus. J. Appl. Entomol. 133: 518-523.

Wang, S., J.P. Michaud, R. Zhang, S. Liu & F. Zhang. (2009) Seasonal cycles of assortative mating and reproductive behaviour in polymorphic populations of Harmonia axyridis in China. Ecol. Entomol. 34: 483-494.

Hodek, I. and J.P. Michaud. 2008. Why is Coccinella septempunctata so successful? Eur. J. Entomol. 105: 1-12.

Michaud, J.P. and J.L. Jyoti.  2008.  Dietary complementation across life stages in the polyphagous lady beetle Coleomegilla maculata.  Entomologia Experimentalis et Applicata 126: 40-45.

Alabi, T., J.P. Michaud, L. Arnaud, and E. Haubruge. 2008.  A comparative study of cannibalism and predation in seven species of flour beetle. Ecol. Entomol. 33: 716-726.

Michaud, J.P. and J.L. Jyoti. 2007. Dietary complementation across life stages in a polyphagous lady beetle, Coleomegilla maculata. Entomol. Exp. Appl. 126: 40-45.

Michaud, J.P., A.K. Grant and J.L. Jyoti.  2007.  Impact of the stem borer, Dectes texanus, on yield of the cultivated sunflower, Helianthus annuus.  Journal of Insect Science 7: Art. No. 21.

Michaud, J.P., J.A. Qureshi and A.K. Grant.  2007.  Sunflowers as a trap crop for reducing soybean losses to the stalk borer Dectes texanus (Coleoptera: Cerambysidae). Pest Management Science 63: 903-909.

Qureshi, J.A., P.W. Stahlman and J.P. Michaud.  2007.  Plant population and weeds influence stalk insects, soil moisture, and yield in rainfed sunflowers.  Insect Science 14: 425-435.

Michaud, J.P. and J.L. Jyoti.  2007.  Repellency of conspecific and heterospecific larval residues to Hippodamia convergens (Coleoptera: Coccinellidae) ovipositing on sorghum plants.  European Journal of Entomology 104: 399-405. 

Michaud, J.P., T.J. Martin, and J.L. Jyoti. 2006.  Larval preference for a wheat cultivar in the army cutworm (Lepidoptera: Noctuidae).  Journal of the Kansas Entomological Society 79: 28-33.

Michaud, J.P. and J.A. Qureshi.  2006.  Reproductive diapause in Hippodamia convergens (Coleoptera: Coccinellidae) and its life history consequences.  Biological Control 39: 193-200

Qureshi, J.A. J.P. Michaud & T.J. Martin. 2006.  Resistance to biotype 2 Russian wheat aphid (Homoptera: Aphididae) in two wheat lines.  Journal of Economic Entomology 99: 544-550.

Jyoti, J.L., J.P. Michaud, & J.A. Qureshi. 2006.  Virulence of two Russian wheat aphid biotypes to eight wheat cultivars at two temperatures.  Crop Science 46: 774-780. 

Michaud, J.P., J.L. Jyoti and J.A. Qureshi. 2006.  Positive correlation of fitness with group size in two biotypes of Russian wheat aphid (Homoptera: Aphididae).  Journal of Economic Entomology 99: 1214-1224. 

Michaud J.P. and J.A. Qureshi. 2006.  Reproductive diapause of Hippodamia convergens (Coleoptera: Coccinellidae) and its life history consequences. Biol. Control 39: 193-200.

Pluke, R.W.H., A. Escribano,  J.P. Michaud and P.A. Stansly. 2005.  Potential impact of lady beetles on Diaphorina citri (Homoptera: Psyllidae) in Puerto Rico. Florida Entomologist 88: 123-128. 

Harvey, T.L., D.L. Seifers, T.J. Martin and J.P. Michaud.  2005.  Effect of resistance to wheat streak mosaic virus on transmission efficiency of wheat curl mites.  Journal of Agricultural and Urban Entomology 22: 1-6 

Qureshi, J.A., Jyoti, J.L. & J.P. Michaud. 2005.  Differential colonization of wheat cultivars by two biotypes of the Russian wheat aphid (Homoptera: Aphididae).  Insect Science 12: 341-350.   

Qureshi, J.A. and J.P. Michaud. 2005.  Interactions among three species of cereal aphids simultaneously infesting wheat.  Journal of Insect Science 5.13.  Available online:

Michaud, J.P. 2005.  On the assessment of prey suitability in aphidophagous Coccinellidae. European Journal of Entomology 102: 385-390.

Michaud, J.P. and J.A. Qureshi. 2005.  Induction of reproductive diapause in Hippodamiaconvergens (Coleoptera: Coccinellidae) hinges on prey quality and availability.  Eur. J. Entomol. 102: 483-487.

Michaud, J.P. and A.K. Grant.  2005.  Biology and behavior of the longhorned beetle, Dectes texanus, on sunflower and soybean.  Journal of Insect Science 5.25.  Available online:

Jyoti, J.L. and J.P. Michaud.  2005.  Comparative biology of a novel strain of Russian wheat aphid (Homoptera: Aphididae) on three wheat cultivars.  Journal of Economic Entomology 98: 1032-1039.

Michaud, J.P. and A.K. Grant. (2005).  Suitability of pollen sources for development and reproduction of Coleomegilla maculata (Coleoptera: Coccinellidae) under simulated drought conditions.  Biological Control 32: 363-370. 

Qureshi, J.A. and J.P. Michaud. (2005).  Comparative biology of three cereal aphids on TAM 107 wheat.  Environmental Entomology 34: 27-36. 

Michaud, J.P. and Grant, A.K.  2004.  Adaptive significance of sibling egg cannibalism in the Coccinellidae: Comparative evidence from three species.  Annals of the Entomological Society of America 97: 710-719.

Michaud, J.P. and L. Olsen.  2004.  Suitability of Asian citrus psyllid, Diaphorina citri (Homoptera: Psyllidae) as prey for ladybeetles (coleroptera: Coccinellidae).  BioControl 49: 417-431. 

Michaud,J.P.  2004.  Natural mortality of Asian citrus psyllid, Diaphorina citri (Homoptera: Psyllidae) in central Florida.  Biological Control 29: 260-269.

Michaud, J.P.  2004.  Assessment of cotton as an alternative host plant for the brown citrus aphid, Toxoptera cytridica (Homoptera: Aphididae).  Florida Entomologist 82: 105-111

Michaud, J.P. and C.L. McKenzie.  2004.  Safety of a novel insecticide, sucrose octanoate, to beneficial insects in Florida citrus.  Florida Entomologist 87: 6-9.

Michaud, J.P. and A,K. Grant.  2003.  Sublethal effects of a copper sulphate fungicide on the development and reproduction of three species of Coccinellidae.  Journal of Insect Science 3:16. 

Michaud, J.P. and A.K. Grant.  2003.  Intraguild predation among ladybeetles and a green lacewing: do the larval spines of Curinus coeruleus (Coleoptera: Coccinellidae) serve a defensive function?  Bulletin of Entomological Research 93: 499-505.

Michaud J.P. 2003. Toxicity of fruit fly baits to beneficial insects in citrus. 9 pp. Journal of Insect Science, 3.8. Available online:

Michaud JP, and Grant AK. 2003. IPM-compatibility of foliar insecticides for citrus: Indices derived from toxicity to beneficial insects from four orders. 10pp Journal of Insect Science, 3:18, Available online: