Nechols, James R.
Professor Emeritus
234 W. Waters Hall
Manhattan KS 66506
Phone: (785) 532-4744
Fax: (785) 532-6232
Area(s) of Specialization:
Biological control of arthropod pests and weeds, natural enemy-pest interactions, ecology and behavior of predators and parasitic Hymenoptera, insect dormancy, and horticultural entomology
View My Curriculum Vitae
Bio Brief
Education
B.S. Biology, Baldwin-Wallace College, Berea OH,M.S. Entomology, Cornell University, Ithaca NY,
Ph.D. Entomology, Cornell University, Ithaca NY,
Teaching
- Biological Control [ENTOM 820]
- Turfgrass Insects and Their Management [ENTOM 589]
Publications
Nachappa, P., D.C. Margolies, J.R. Nechols and T.J. Morgan. 2010. Response of a complex foraging phenotype to artificial selection on its component traits. Evolutoinary Ecology 24:631-655.
Gontijo, L.M., D.C. Margolies, J.R. Nechols and R.A. Cloyd. 2010. Plant architecture, prey distribution and predator release strategy interact to affect foraging efficiency of the predatory mite Phytoseiulus persimilis (Acari: Phytoseiidae) on cucumber. Biological Control 53:136-141.
Cheng, L., J.R. Nechols, D.C. Margolies, J.F. Campbell, and P.S. Yang. 2010. Assessment of prey preference by the mass-produced generalist predator, Mallada basalis (Walker) (Neuroptera: Chrysopidae), when offered two species of spider mites, Tetranychus kanzawai Kishida and Panonychus citri (McGregor) (Acari: Tetranychidae), on papaya. Biological Control 53:267-272.
Opit, G.P., J. Perret, K. Holt, J.R. Nechols, D.C. Margolies and K.A. Williams. 2009. Comparing chemical and biological control strategies for twospotted spider mites (Acari: Tetranychidae) in commercial greenhouse production of bedding plants. Journal of Economic Entomology 102:336-346.
Cheng, L., J.R. Nechols, D.C. Margolies, J.F. Campbell, P-S. Yang, C-C. Chen and C-T. Lu. 2009. Foraging on and consumption of two species of papaya pest mites, Tetranychus kanzawai and Panonychus citri (Acari: Tetranychidae) by Mallada basalis (Neuroptera: Chrysopidae). Environmental Entomology 38:715-722.
Vardeman, E.A., F.H. Arthur, J.R. Nechols and J.F. Campbell. 2007. Efficacy of surface applications with diatomaceous earth to con trol Rhyzopertha dominica (F.) (Coleoptera: Bostrichidae) in stored wheat. Journal of Stored Products Research 43: 335-341
Grieshop, M.J., P.W. Flinn, J.R. Nechols and M. Scholler. 2007. Host-foraging sucess of three species of Trichogramma (Hymenoptera: Trichogrammatidae) in a simulated retail environment. Journal of Economic Entomology 100: 591-598
Vardeman, E.A., J.F. Campbell, F.H. Arthur and J.R. Nechols. 2007. Behavior of female Rhyzopertha dominica (Coleoptera: Bostrichidae) in a mono-layer of wheat treated with diatomacious earth. Journal of Stored Products Research 43: 297-301
Alatawi, F.J., D.C. Margolies and J.R. Nechols. 2007. Aesthetic damage thresholds for twospotted spider mites (Acari: Tetranychidae) on impatiens: effect of plant age and level of infestation. Journal of Economic Entomology 100: 1904-1909.
Chen, Y., G.P. Opit, V.M. Jonas, K.A. Williams, J.R. Nechols, and D.C. Margolies. 2007. Twospotted spider mite population level, distribution, and damage on ivy geranium in response to different nitrogen and phosphorus fertilization regimes. Journal of Economic Entomology 100: 1821-1830
Holt, K.M., G. Opit, J.R. Nechols, D.C. Margolies and K.A. Williams. 2007. Comparing chemical and biological controls trategies for twospotted spider mites in mixed production of ivy geranium and impatiens. HortTechnology 17: 322-327
Nachappa, P., D.C. Margolies, and J.R. Nechols. 2006. Resource-dependent giving-up time of the predatory mite, Phytoseiulus persimilis. Journal of Insect Behavior 19: 741-752
Zhi, J, D.C. Margolies, J.R. Nechols and J.E. Boyer, Jr. 2006. Host-plant mediated interactions between populations of a true omnivore and its herbivorous prey. Entomologia Experimentalis et Applicata 121: 59-66
Nachappa, P., D.C. Margolies, J.R. Nechols and T. Loughin. 2006. Phytoseiulus persimilis response to herbivore-induced plant volatiles as a function of mite-days. Experimental and Applied Acarology 40:231-239.
Grieshop, M.J., P.W. Flinn, and J.R. Nechols. 2006. Biological control of indianmeal moth (Lepidoptera : Pyralidae) on finished stored products using egg and larval parasitoids. Journal of Economic Entomology 99: 1080-1084
Vardeman, E.A., F.H. Arthur, J.R. Nechols and J.F. Campbell. 2006. Effect of temperature, exposure interval, and depth of diatomaceous earth treatment on distribution, mortality, and progeny production of lesser grain borer (Coleoptera : Bostrichidae) in stored wheat. Journal of Economic Entomology 99: 1017-1024
Holt, K.M., G.P. Opit, J.R. Nechols, and D.C. Margolies. 2006. Testing for non-target effects of spinosad on twospotted spider mites and their predator Phytoseiulus persimilis under greenhouse conditions. Experimental and Applied Acarology 38: 141-149
Opit, G.P., G.K. Fitch, D.C. Margolies, J.R. Nechols and K.A. Williams. 2006. Overhead and drip-tube irrigation affect twospotted spider mites and their biological control by a predatory mite on impatiens. Hortscience 41: 691-694.
Opit, G.P., Chen, Y., Williams, K.A., Nechols, J.R. and Margolies, D.C. 2005. Plant age, fertilization, and biological control affect damage caused by twospotted spider mites on ivy geranium: development of an action threshold. Journal of the American Society for Horticultural Science 130: 159-166.
Zhi, J., G.K. Fitch, J.R. Nechols, and D.C. Margolies. 2005. Apple pollen as a supplemental food for the western flower thrips, Frankliniella occidentalis (Thysanoptera: Thripidae): response of indivuals and populations. Entomologia Experimentalis et Applicata 117: 185-192
Vardeman, E.A., F.H. Arthur, J.R. Nechols, and J.F. Campbell. Effect of temperature, exposure interval and depth of diatomaceous earth on distribution, mortality, and reproduction of the lesser grain borer, Rhyzopertha dominica (F.) (Coleoptera: Bostrichidae) in stored wheat. Journal of Economic Entomology (in press).
Alatawi, F.J., G.P. Opit, D.C. Margolies, and J.R. Nechols. 2005. Within-plant distribution of twospotted spider mites, Tetranychus urticae Koch (Acari: Tetranychidae) on impatiens: developing a presence-absence sampling plan. Journal of Economic Entomology 98:1040-1047
Opit, G.P., J.R. Nechols, D.C. Margolies, and K.A. Williams. 2005. Survival, horizontal distribution, and economics of releasing predatory mites (Acari: Phytoseiidae) using mechanical blowers. Biological Control 33:344-351.
Akbar, W., Lord, J.C.,Nechols, J.R., Loughin, T.M. 2005. Efficacy of Beauveria bassiana for the red flour beetle, Tribolium castaneum, when applied with plant essential oils or in mineral oil and organosilicone carriers. Journal of Economic Entomology 98: 683-688
Opit, G. P., J. R. Nechols, and D. C. Margolies. 2004. Biological control of twospotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae), using Phytoseiulus persimilis Athias-Henriot (Acari: Phytoseidae) on ivy geranium: assessment of predator release ratios. Biological Control 29: 445-452.
Milbrath, L.R. and J.R. Nechols. 2004. Individual and combined effects of Trichosirocalus horridus and Rhinocyllus conicus (Coleoptera: Curculionidae) on musk thistle biological control. Biological Control 31: 418-429.
Milbrath, L.R. and J.R. Nechols. 2004. Indirect effect of early-season infestations of Trichosirocalus horridus on Rhinocyllus conicus (Coleoptera: Curculoionidae). Biological Control 30: 95-109.
Akbar, W., Lord, J.C., Nechols, J.R., Howard, R.W. 2004. Diatomaceous earth increases the efficacy of Beauveria bassiana against Tribolium castaneum larvae and increases conidia attachment. J. Econ. Entomol. 97: 273-280.
Cheng, L.I., Howard, R.W., Campbell, J.F., Charlton, R.E., Nechols, J.R. and Ramaswamy, S.B. 2004. Mating behavior of Cephalonoma tarsalis (Ashmead)(Hymenoptera: Bethylidae) and the effect of female mating frequency on offspring production. Journal of Insect Behavior 17: 227-245.
Opit, G. P., K. Williams, D. Margolies, J. Nechols, and Y. Chen. 2003. Look before you leap – managing an infestation of twospotted spider mites on ivy geranium. Greenhouse Business 9: 25-26.
Villamil, S.C., Nechols, J.R. and Ramaswamy, S.B. 2003. The effect of pre-adult and adult temperatures on oocyte development of the field bindweed moth, Tyta luctuosa (Lepidoptera: Noctuidae). Journal of the Kansas Entomological Society 76: 442-446.
Cao, W.H., Charlton, R.E., Nechols, J.R. and Horak, M.J. 2003. Sex pheromone of the noctuid moth, Tyta luctuosa (Lepidoptera: Noctuidae), a candidate biological control agent of field bindweed. Environmental Entomology 32: 17-22.
Cheng, L.L., Howard, R.W., Campbell, J.R., Charlton, R.W., Nechols, J.R. and Ramaswamy, S. 2003. Behavioral interaction between males of Cephalonomia tarsalis (Ashmead)(Hymenoptera: Behylidae) competing for females. Journal of Insect Behavior 16: 625-645.
Opit, G. P., D. C. Margolies, and J. R. Nechols. 2003. Within-plant distribution of twospotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae), on ivy geranium: Development of a presence-absence sampling plan. Journal of Economic Entomology 96: 482-488.
Opit, G.P., Jonas, V.M., Williams, K.A., Margolies, D.C. and Nechols, J.R. 2001. Effects of cultivar and irrigation management on population growth of the twospotted spider mite Tetranychus urticae on greenhouse ivy geranium. Experimental and Applied Acarology 25: 849-857.
Messenger, M.T., L.L. Buschian, and J.R. Nechols. 2000. Survey and evaluation of native and released predators of the Banks grass mite (Acari: Tetranychidae) in corn and surrounding vegetations. Journal of the Kansas Entomological Society 73: 112-122
Miller, N.W., J.R. Nechols, M.J. Horak and T.M. Loughin. 2000. Photoperiodic regulation of seasonal diapause induction in the field bindweed moth, Tyta luctuosa (Lepidoptera : noctuidae). Biological Control 19: 139-148
Messenger, M.T., L.L. Buschman and J.R. Nechols. 2000. A comparison of sampling techniques for spider mites and spider mite predators in corn. Southwestern Entomologist 25: 221-227
Margolies, D.C., Nechols, J.R. and Vogt, E.A. 1998. Rapid adaptation of squash bug, Znasa tristis, population to a resistant cucurbit cultivar. Entomologia Experimentalis et Applicata 89: 65-70.
Chessman, D.J., M.J. Horak and J.R. Nechols. 1997. Host plant preference, consumption, growth, development, and survival of Tyta luctuosa (Lepidoptera: Noctuidae) oil biotypes of field bindweed and hedge bindweed. Environmental Entomology 26: 966-972
Stiefel, V.L., J.R. Nechols and D.C. Margolies. 1997. Development and survival of Anomoea flavokansiensis (Coleoptera: Chrysomelidae) as affected by temperature. Environmental Entomology 26: 223-228
Tauber, M.J., C.A. Tauber and J.R. Nechols. 1996. Life history of Galerucella nymphaeae and implications of reproductive diapause for rearing univoltine chrysomelids. Physiological Entomology 21: 317-324.
Olson, D.L., J.R. Nechols and B.W. Schurle. 1996. Comparative evaluation of population effect and economic potential of biological suppression tactics versus chemical control for squash bug (Heteroptera: Coreidae) management on pumpkins. Journal of Economic Entomology 89: 631-639
Nechols, J.R., J.J. Obrycki, C.A. Tauber and M.J. Tauber. 1996. Potential impact of native natural enemies on Galerucella spp (Coleoptera: Chrysomelidae) imported for biological control of purple loosestrife: A field evaluation. Biological Control 7: 60-66
Olson, D.L. and J.R. Nechols. 1995. Effects of squash leaf trichome exudates and honey on adult feeding, survival, and fecudity of the squash bug (Heteroptera, Coreidae) egg parasitoid Gryon pennsylvanicum (Hymeoptera: Scelionidae). Environmental Entomology 24: 454-458
Stiefel, V.L., J.R. Nechols and D.C. Margolies. 1995. Overwintering biology of Anomoea flavokansiensis (Coleoptera, Chrysomelidae. Annals of the Entomological Society of America 88: 342-347
Vogt, E.A. and J.R. Nechols. 1993. The influence of host deprivation and host source on the reproductive biology and longevity of the squash bug egg parasitoid Gryon pennsylvanicum (Ashmead) (Hymenoptera, Scelionidae). Biological Control 3: 148-154
Vogt, E.A. and J.R. Nechols. 1993. Responses of the squash bug (Hemiptera, Coreidae) and its egg parasitoid, Gryon pennsylvanicum (Hymenoptera, Scelionidae) to 3 cucurbita cultivars. Environmental Entomology 22: 238-245
Krueger, S.R., J.R. Nechols and W.A. Ramoska. 1992. Habitat distribution and infection rates of the fungal pathogen, Beauveria bassiana (Balsamo) vuillemin in endemic populations of the chinch bug, Blissus leucopterus leucopterus (Say) (Hemiptera, Lygaeidae) in Kansas. Journal of the Kansas Entomological Society 65: 115-124
Baker, R., G.A. Matthews, J.R. Nechols and R.G. Turner. 1992. Crop protection increases in frequency. Crop Protection 11: 491.
Black, W.C., N.M. Duteau, G.J. Puterka, J.R. Nechols and J.M. Pettorini. 1992. Use of the random amplified polymorhpic DNA-polymerase chain reaction (RAPD-PCR) to detect DNA polymorphisms in aphids (Homoptera, Aphididae). Bulletin of Entomological Research 82: 151-159
Krueger, S.R., J.R. Nechols and W.A. Ramoska. 1991. Infection of chinch bug, Blissus leucopterus leucopterus (Hemiptera, Lygaeidae) adults from Beauveria bassiana (Deuteromycotina, Hyphomycetes) Conidia in soild under controlled temperature and moisture conditions. Journal of Invertebrate Pathology 58: 19-26
Vogt, E.A. and J.R. Nechols. 1991. Diel activity patterns of the squash bug egg parasitoid Gryon pennsylvanicum (Hymeoptera, Scelionidae). Annals of the Entomological Society of America 84: 303-308
Tillotson, D.K., D.C. Margolies and J.R. Nechols. 1990. Effect of temperature and photoperiod on mortality of Melanoplus differentialis (Orthoptera, Acrididae) infected by Entomophaga grylli pathotype-2 (Entomophthorales, Entomophthoraceae). Journal of the Kansas Entomological Society 63: 252-259
Nechols, J.R. and J.J. Obrycki. 1989. Comparative behavioral and ecological studies in relation to biological control - an overview. Journal of the Kansas Entomological Society 62: 146-147
Nechols, J.R., J.L. Tracy and E.A. Vogt. 1989. Comparative ecological studies of indigenous egg parasitoids (Hymenoptera, Scelionidae, Encyrtidae) of the squash bug, Anasa tristis (Hemiptera, Coreidae). Journal of the Kansas Entomological Society 62: 177-188.
Tracy, J.L. and J.R. Nechols. 1988. Comparison of thermal responses, reproductive biologies and population growth potentials of the squash bug egg parasitoids Ooencyrtus anasae and Oencyrtus sp. (Hymenoptera, Encyrtidae). Environmental Entomology 17: 636-643
Nechols, J.R. 1988. Photoperiodic responses of the squash bug (Heteroptera, Coreidae) - diapause induction and maintenance. Environmental Entomology 17: 427-431.
Tracy, J.L. and J.R. Nechols. 1987. Comparisons between the squash bug egg parasitoids Ooencyrtus anasae and O sp. (Hymenoptera, Encyrtidae) - development, survival and sex-ration in relation to temperature. Environmental Entomology 16: 1324-1329
Nechols, J.R. 1987. Voltinisms, sesonal reproduction, and diapause in the squash bug (Heteroptera, Coredeidae) in Kansas. Environmental Entomology 16: 269-273
Tauber, C.A., M.J. Tauber and J.R. Nechols. 1987. Thermal requirements for development in Chrysopa oculata - a geographically stable trait. Ecology 68: 1479-1487
Nechols, J.R., M.J. Tauber and C.A. Tauber. 1987. Geographical variability in ecophysiological traits controlling dormancy in Chrysopa oculata (Neuroptera, Chrysopidae). Journal of Insect Physiology 33: 627-633
Nechols, J.R. and R.S. Kikuchi. 1985. Host selection of the spherical mealybug (Hooptera, Pseudococcidae) by Anagyrus indicus (Hymenoptera, Encyrtidae) - influence of host stage on parasitoid oviposition, development, sex-ratio and survival. Environmental Entomology 14: 32-37
Nechols, J.R. and T.F. Seibert. 1985. Biological control of the spherical mealybug, Nipaecoccus vastator (Homoptera, Pseudococcidae) - assessment by ant exclusion. Environmental Entomology 14: 45-47.
Nechols, J.R., M.J. Tauber, C.A. Tauber and R.G. Helgesen. 1983. Environmental regulation of dormancy in the alfalfa blotch leafminer, Agromyza frontella (Diptera, Agromyzidae). Annals of the Entomological Society of America 76: 116-119
Nechols, J.R. and P.J. Tauber. 1982. Thermal requirements for postdiapause development and survival in the giant silkworm, Hyalophora cecropia (Lepidoptera, Saturniidae). Journal of the New York Entomological Society 90: 252-257.
Tauber, M.J., C.A. Tauber, J.R. Nechols and R.G. Helgesen. 1982. A new role for temperature in insect dormancy - cold maintains diapause in temperate zone diptera. Science 218: 690-691