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ARS Home » Southeast Area » Stoneville, Mississippi » Biological Control of Pests Research » People & Locations » Eric Riddick
Eric W Riddick
Biological Control of Pests Research
Research Entomologist

Phone: (662) 686-3646
Fax: (662) 686-5281

(Employee information on this page comes from the REE Directory. Please contact your front office staff to update the REE Directory.)

Projects
Mass Production of Insects for Biological Control of Arthropod Pests and as Food Sources
In-House Appropriated (D)
  Accession Number: 439335
Evaluation of Native Bees as Pollinators of Small Fruits on Small Farms
Non-Assistance Cooperative Agreement (S)
  Accession Number: 438751

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
A simple test of prey (aphid) recognition by laboratory reared Coleomegilla maculata (Coleoptera: Coccinellidae) - (Peer Reviewed Journal)
A simple evaluation of prey recognition behavior by mass reared Coleomegilla maculata (Coleoptera: Coccinellidae) - (Abstract Only)
Evaluation of black soldier fly Hermetia illucens as food for the pink-spotted lady beetle Coleomegilla maculata Reprint Icon - (Peer Reviewed Journal)
Riddick, E.W., Walker, R.C., Rojas, M.G., Morales Ramos, J.A. 2023. Evaluation of black soldier fly Hermetia illucens as food for the pink-spotted lady beetle Coleomegilla maculata. Insects. 14(12):902. https://doi.org/10.3390/insects14120902.
Differential susceptibility of Coleomegilla maculata (Coleoptera: Coccinellidae) and Scymnus creperus (Coleoptera: Coccinellidae) larvae to aggression by Solenopsis invicta (Hymenoptera: Formicidae) workers Reprint Icon - (Peer Reviewed Journal)
Riddick, E.W., Wu, Z., Chen, J. 2023. Differential susceptibility of Coleomegilla maculata (Coleoptera: Coccinellidae) and Scymnus creperus (Coleoptera: Coccinellidae) larvae to aggression by Solenopsis invicta (Hymenoptera: Formicidae) workers. Insects. https://doi.org/10.3390/insects14040318.
Production of heteropteran predators - (Book / Chapter)
De Clercq, P., Courdron, T.A., Riddick, E.W. 2023. Production of heteropteran predators. In: Morales-Ramos, J.A., Rogas, M.G., Shapiro-Ilan, D.I., editors. Mass Production of Beneficial Organisms. 2nd edition. San Diego, CA: Academic Press. p. 57-100.
Topical collection: natural enemies and biological control of plant pests Reprint Icon - (Peer Reviewed Journal)
Riddick, E.W. 2022. Topical collection: natural enemies and biological control of plant pests. Insects. 13(5):421. https://doi.org/10.3390/insects13050421.
Comparison of natural prey Tetranychus turkestani, date palm pollen, and bee pollen diets on development, reproduction, and life table parameters of the predator Amblyseius swirskii Reprint Icon - (Peer Reviewed Journal)
Rahmani Piyani, A., Shishehbor, P., Kocheili, F., Riddick, E.W. 2021. Comparison of natural prey Tetranychus turkestani, date palm pollen, and bee pollen diets on development, reproduction, and life table parameters of the predator Amblyseius swirskii. Acarologia. 61(4):890-900. https://doi.org/10.24349/G9ed-QB9h.
Functional and numerical responses of the predator Amblyseius swirskii to its prey Tetranychus turkestani in the laboratory Reprint Icon - (Peer Reviewed Journal)
Rahmani Piyani, A., Shishehbor, P., Kocheili, F., Riddick, E.W. 2021. Functional and numerical responses of the predator Amblyseius swirskii to its prey Tetranychus turkestani in the laboratory. Acarologia. 61(4):901-909. https://doi.org/10.24349/r82w-YLJ1.
Parasitoid age and host age interact to improve life history parameters and rearing of Trichogramma euproctidis Reprint Icon - (Peer Reviewed Journal)
Tabebordbar, F., Shishehbor, P., Ebrahimi, E., Polaszek, A., Riddick, E.W. 2022. Parasitoid age and host age interact to improve life history parameters and rearing of Trichogramma euproctidis. Biocontrol Science and Technology. 32(3):267-280. https://doi.org/10.1080/09583157.2021.1990858.
Production of Coleopteran Predators - (Book / Chapter)
Riddick, E.W. 2023. Production of Coleopteran predators. In: Morales-Ramos, J.A., Rojas, M.G., Shapiro-Ilan, D.I., editors. Mass Production of Beneficial Organisms: Invertebrates and Entomopathogens. 2nd edition. San Diego, CA: Academic Press. p. 13-36.
Long-term effects of cattail Typha latifolia pollen on development, reproduction, and predation capacity of Neoseiulus cucumeris, a predator of Tetranychus urticae Reprint Icon - (Peer Reviewed Journal)
Gravandian, M., Fathipour, Y., Hajiqanbar, H., Riahi, E., Riddick, E.W. 2022. Long-term effects of cattail Typha latifolia pollen on development, reproduction, and predation capacity of Neoseiulus cucumeris, a predator of Tetranychus urticae. Biocontrol. 67:149-160. https://doi.org/10.1007/s10526-021-10116-4.
Evaluation of Artemia franciscana cysts to improve diets for mass rearing Stethorus gilvifrons, a predator of Tetranychus turkestani Reprint Icon - (Peer Reviewed Journal)
Ebrahimifar, J., Parviz, S., Rasekh, A., Hemmati, S.A., Riddick, E.W. 2021. Evaluation of Artemia franciscana cysts to improve diets for mass rearing Stethorus gilvifrons, a predator of Tetranychus turkestani. Insects. 12:632. https://doi.org/10.3390/insects12070632.
Effects of Helicoverpa armigera egg age on development, reproduction, and life table parameters of Trichogramma euproctidis Reprint Icon - (Peer Reviewed Journal)
Atashi, N., Shishehbor, P., Seraj, A.A., Rasekh, A., Hemmati, S.A., Riddick, E.W. 2021. Effects of Helicoverpa armigera egg age on development, reproduction, and life table parameters of Trichogramma euproctidis. Insects. 12:569. https://doi.org/10.3390/insects12070569.
Potential of quercetin to reduce herbivory without disrupting natural enemies and pollinators Reprint Icon - (Peer Reviewed Journal)
Riddick, E.W. 2021. Potential of quercetin to reduce herbivory without disrupting natural enemies and pollinators. Agriculture. 11:476. https://doi.org/10.3390/agriculture11060476.
Behavioral and electrophysiological response of sugarcane aphids and imported fire ants to 2, 4, 6-trimethylpyridine, an alkaloid from the pink-spotted lady beetles Reprint Icon - (Peer Reviewed Journal)
Zhou, A., Du, Y., Riddick, E.W., Li, L., Chen, J. 2021. Behavioral and electrophysiological response of sugarcane aphids and imported fire ants to 2, 4, 6-trimethylpyridine, an alkaloid from the pink-spotted lady beetles. Journal of Pest Science. https://doi.org/10.1007/s10340-021-01363-6.
Volatile and non-volatile organic compounds stimulate oviposition by aphidophagous predators Reprint Icon - (Peer Reviewed Journal)
Riddick, E.W. 2020. Volatile and non-volatile organic compounds stimulate oviposition by aphidophagous predators. Insects. 11:1-11. https://doi.org/10.3390/insects11100683.
Effects of three artificial diets on life history parameters of the ladybird beetle Stethorus gilvifrons, a predator of tetranychid mites Reprint Icon - (Peer Reviewed Journal)
Ebrahimifar, J., Shishehbor, P., Rasekh, A., Hemmati, S.A., Riddick, E.W. 2020. Effects of three artificial diets on life history parameters of the ladybird beetle Stethorus gilvifrons, a predator of tetranychid mites. Insects. 11:1-9. 10.3390/insects11090579.
Effect of factitious diets on development and reproduction of the ladybird beetle Stethorus gilvifrons, a predator of tetranychid mites Reprint Icon - (Peer Reviewed Journal)
Ebrahimfar, J., Shishehbor, P., Rasekh, A., Riddick, E.W. 2020. Effect of factitious diets on development and reproduction of the ladybird beetle Stethorus gilvifrons, a predator of tetranychid mites. Biocontrol. 65:703-711. https://doi.org/10.1007/s10526-020-10033-y.
Ethyl formate fumigation for the disinfestation of red imported fire ants Solenopsis invicta Buren - (Peer Reviewed Journal)
Lee, B., Park, C., Park, M., Riddick, E.W., Roh, G., Chen, J., Cha, D.H. 2019. Ethyl formate fumigation for the disinfestation of red imported fire ants Solenopsis invicta Buren. Journal of Asia-Pacific Entomology. 22(3):838-840.
Discovery of Aphis ruborum (Hemiptera: Aphididae) and Aphelinus varipes (Hymenoptera: Aphelinidae) on cultivated strawberry in Mississippi, USA Reprint Icon - (Peer Reviewed Journal)
Riddick, E.W., Miller, G.L., Owen, C.L., Bauchan, G.R., Schmidt, J.M., Gariepy, T., Brown, R.L., Grodowitz, M.J. 2019. Discovery of Aphis ruborum (Hemiptera: Aphididae) and Aphelinus varipes (Hymenoptera: Aphelinidae) on cultivated strawberry in Mississippi, USA. Journal of Insect Science. 19(3):1-6. https://doi.org/10.1093/jisesa/iez045.
Potential utilization of Stethorus punctillum to control Tetranychus cinnabarinus on strawberry in greenhouses and high tunnels - (Abstract Only)
Potential of 2,4-dihydroxybenzoic acid as an oviposition stimulant for mass-reared ladybird beetles Reprint Icon - (Peer Reviewed Journal)
Riddick, E.W., Wu, Z., Eller, F.J., Berhow, M.A. 2019. Potential of 2,4-dihydroxybenzoic acid as an oviposition stimulant for mass-reared ladybird beetles. Journal of Insect Science. 19(2):1-6.
Overview of predators and parasitoids for biological control of plant pests in Mississippi - (Abstract Only)
Editorial: Ecology and behavior of native, naturalized, and invasive ladybird beetles - (Other)
Riddick, E.W., Soares, A.O. 2018. Editorial: Ecology and behavior of native, naturalized, and invasive ladybird beetles. FRONTIERS IN ECOLOGY AND EVOLUTION. 6:1-2.
Utilization of quercetin as an oviposition stimulant by lab-cultured Coleomegilla maculata in the presence of conspecifics and a tissue substrate Reprint Icon - (Peer Reviewed Journal)
Riddick, E.W., Wu, Z., Eller, F.J., Berhow, M.A. 2018. Utilization of quercetin as an oviposition stimulant by lab-cultured Coleomegilla maculata in the presence of conspecifics and a tissue substrate. Insects. 9:1-14.
Oviposition strategies in beneficial insects - (Research Technical Update)
Riddick, E.W., Dindo, M.L., Grodowitz, M.J., Cottrell, T.E. 2018. Oviposition strategies in beneficial insects. International Journal of Insect Science. 10:1-3.
Estimating ladybird predation of aphids in the presence of foraging ants in lab bioassays - (Abstract Only)
Untangling the effects of predator releases and transient natural enemies on pest populations in strawberry high tunnels in Mississippi - (Abstract Only)
Do bioflavonoids in Juniperus virginiana heartwood stimulate oviposition in the ladybird Coleomegilla maculata? Reprint Icon - (Peer Reviewed Journal)
Riddick, E.W., Wu, Z., Eller, F.J., Berhow, M.A. 2018. Do bioflavonoids in Juniperus virginiana heartwood stimulate oviposition in the ladybird Coleomegilla maculata? International Journal of Insect Science. 10:1-13. https://doi:10.1177/1179543318758409.
Predators and parasitoids of the harlequin ladybird, Harmonia axyridis, in its native range and invaded areas - (Peer Reviewed Journal)
Ceryngier, P., Nedved, O., Grez, A.A., Riddick, E.W., Roy, H.E., San Martin, G., Steenberg, T., Vesely, P., Zaviezo, T., Zuniga-Reinoso, A., Haelewaters, D. 2018. Predators and parasitoids of the harlequin ladybird, Harmonia axyridis, in its native range and invaded areas. Biological Invasions. 20(4):1009-1031.
In-transit temperature extremes could have negative effects on ladybird (Coleomegilla maculata) hatch rate Reprint Icon - (Peer Reviewed Journal)
Riddick, E.W., Morales Ramos, J.A. 2017. In-transit temperature extremes could have negative effects on ladybird (Coleomegilla maculata) hatch rate. Trends in Entomology. 13:1-11.
Lethality of the entomogenous fungus Beauveria bassiana strain NI8 on Lygus lineolaris (Hemiptera: Miridae) and its possible impact on beneficial arthropods Reprint Icon - (Peer Reviewed Journal)
Portilla, M., Luttrell, R.G., Snodgrass, G.L., Zhu, Y., Riddick, E.W. 2017. Lethality of the entomogenous fungus Beauveria bassiana strain NI8 on Lygus lineolaris (Hemiptera: Miridae) and its possible impact on beneficial arthropods. Journal of Entomological Science. 52(4):352-369. https://doi.org/10.18474/JES17-15.1.
Factitious prey and artificial diets for predatory lady beetles: current situation, obstacles, and approaches for improvement - (Review Article)
Sun, Y., Hao, Y., Riddick, E.W., Liu, T. 2017. Factitious prey and artificial diets for predatory lady beetles: current situation, obstacles, and approaches for improvement. Biocontrol Science and Technology. 27(5):601-619.
Identification of conditions for successful aphid control by ladybirds in greenhouses Reprint Icon - (Peer Reviewed Journal)
Riddick, E.W. 2017. Identification of conditions for successful aphid control by ladybirds in greenhouses. Insects. 8(38):1-17.
Effects of bioflavonoids on oviposition behavior in the pink-spotted ladybird beetle Coleomegilla maculata (Coleoptera: Coccinellidae) - (Abstract Only)
Riddick, E.W., Wu, Z., Eller, F.J., Berhow, M.A. 2017. Effects of bioflavonoids on oviposition behavior in the pink-spotted ladybird beetle Coleomegilla maculata (Coleoptera: Coccinellidae). Mississippi Academy of Sciences Proceedings. 62(1):138.
Utilization of ladybird beetles to curb aphids in strawberry high tunnels: preliminary results - (Abstract Only)
Riddick, E.W. 2016. Utilization of ladybird beetles to curb aphids in strawberry high tunnels: preliminary results. Midsouth Entomologist. 9(2):80.
Parasites of Harmonia axyridis: current research and perspectives - (Review Article)
Haelwaters, D., Zhao, S.Y., Cottrell, T.E., Kesel, A., Fiedler, L., Herz, A., Hesketh, H., Hui, C., Kleespies, R.G., Losey, J.E., Murray, K.M., Nedved, O., Pfliegler, W.P., Raak-Van Den Berg, C.L., Riddick, E.W., Shapiro Ilan, D.I., Smyth, R.R., Steenberg, T., Van Wielink, P.S., Viglasova, S., Zhao, Z., Ceryngier, P., Roy, H.E. 2016. Parasites of Harmonia axyridis: current research and perspectives. Biocontrol. 62:355-371.
Spotlight on the positive effects of the ladybird Harmonia axyridis on agriculture - (Peer Reviewed Journal)
Riddick, E.W. 2017. Spotlight on the positive effects of the ladybird Harmonia axyridis on agriculture. Biocontrol. 62(3):319-330.
Use of Tenebrio molitor (Coleoptera: Tenebrionidae) powder to enhance artificial diet formulations for Coleomegilla maculata (Coleoptera: Coccinellidae) Reprint Icon - (Peer Reviewed Journal)
Rojas, M.G., Morales Ramos, J.A., Riddick, E.W. 2016. Use of Tenebrio molitor (Coleoptera: Tenebrionidae) powder to enhance artificial diet formulations for Coleomegilla maculata (Coleoptera: Coccinellidae). Biological Control. 100:70-78.
Powder from cedar heartwood affects oviposition behavior in Coleomegilla maculata: a ladybird native to the Americas - (Abstract Only)
Factitious foods to reduce production costs of beneficial insects - (Popular Publication)
Rojas, M.G., Morales Ramos, J.A., Riddick, E.W. 2015. Factitious foods to reduce production costs of beneficial insects. Adjacent Government UK Magazine. 8:288-289.
Effects of rearing density of survival, growth, and development of the ladybird Coleomegilla maculata in Culture Reprint Icon - (Peer Reviewed Journal)
Riddick, E.W., Wu, Z. 2015. Effects of rearing density of survival, growth, and development of the ladybird Coleomegilla maculata in Culture. Insects. 6:858-868.
Does a change from whole to powdered food (Artemia franciscana eggs) increase oviposition in the ladybird Coleomegilla maculata - (Peer Reviewed Journal)
Riddick, E.W., Wu, Z. 2015. Does a change from whole to powdered food (Artemia franciscana eggs) increase oviposition in the ladybird Coleomegilla maculata. Insects. 6:815-826.
The importance of biological control in agriculture - (Other)
Grodowitz, M.J., Morales Ramos, J.A., Rojas, M.G., Riddick, E.W., Chen, J., Elliott, R.B., Boyette, C.D., Hoagland, R.E. 2015. The importance of biological control in agriculture. Adjacent Government UK Magazine. 1-12.
Potential utilization of Spirulina microalga as a dietary supplement for the ladybird beetle Coleomegilla maculata Reprint Icon - (Peer Reviewed Journal)
Riddick, E.W., Wu, Z., Rojas, M.G., Morales Ramos, J.A. 2014. Potential utilization of Spirulina microalga as a dietary supplement for the ladybird beetle Coleomegilla maculata. Trends in Entomology. 10:39-48.
Potential utilization of Artemia franciscana eggs as food for Coleomegilla maculata - (Peer Reviewed Journal)
Riddick, E.W., Wu, Z., Rojas, M.G. 2014. Potential utilization of Artemia franciscana eggs as food for Coleomegilla maculata. Biocontrol. 59:575-583. 10.1007/s10526-014-9597-4.
Plant trichomes have mixed impacts on predatory insects Reprint Icon - (Peer Reviewed Journal)
Riddick, E.W., Simmons, A.M. 2014. Plant trichomes have mixed impacts on predatory insects. Pest Management Science. 70(11):1668.
Do plant trichomes cause more harm than good to predatory insects? Reprint Icon - (Peer Reviewed Journal)
Riddick, E.W., Simmons, A.M. 2014. Do plant trichomes cause more harm than good to predatory insects? Pest Management Science. 70:1655-1665. doi: 10.1002/ps.3772.
Are plant trichomes harmful to predatory insects and mites? - (Proceedings)
Riddick, E.W., Simmons, A.M. 2013. Are plant trichomes harmful to predatory insects and mites?. Meeting Abstract. 6:135.
Determining an optimal temperature range for reproduction of Phytoseiulus persimilis, a predator of the two-spotted spider mite, Tetranychus urticae - (Peer Reviewed Journal)
Rojas, M.G., Morales Ramos, J.A., Riddick, E.W. 2013. Determining an optimal temperature range for reproduction of Phytoseiulus persimilis, a predator of the two-spotted spider mite, Tetranychus urticae. Biopesticides International. 9:101-112.
Is Tetranychus urticae suitable prey for development and reproduction of naive Coleomegilla maculata? Reprint Icon - (Peer Reviewed Journal)
Riddick, E.W., Wu, Z., Rojas, M.G. 2013. Is Tetranychus urticae suitable prey for development and reproduction of naive Coleomegilla maculata?. Insect Science. 21:83-92. doi:10.1111/1744-7917.12033.
Insect protein as a partial replacement of fishmeal in the diets of juvenile fish and crustaceans - (Book / Chapter)
Insect protein as a partical replacement of fishmeal in the diets of juvenile fish and crustaceans - (Book / Chapter)
Riddick, E.W. 2013. Insect protein as a partical replacement of fishmeal in the diets of juvenile fish and crustaceans. In: Morales-Ramos J, Rojas GM, Shapiro-Ilan D {Eds}, Mass Production of Beneficial Organisms. Elsevier Publishers Book Chapter. pp.565-582.
Insect Protein as a partial Replacement of Fishmeal in the Diets of Juvenile Fish and Crustaceans - (Book / Chapter)
Production of heteropteran predators - (Book / Chapter)
De Clercq, P., Coudron, T.A., Riddick, E.W. 2013. Production of heteropteran predators. In: Morales-Ramos, J., Rojas, G.M., Shapiro-Ilan, D., editors. Mass Production of Beneficial Organisms. New York: Elsevier. p. 57-100.
Production of coleopteran predators - (Book / Chapter)
Riddick, E.W., Chen, H. 2013. Production of coleopteran predators. In: Morales-Ramos J, Rojas GM, Shapiro-Ilan D {Eds}, Mass Production of Beneficial Organisms. Elsevier. pp.17-55.
Mother-offspring relations: Maternal size and prey quality affect egg size of an acariphagous lady beetle in culture - (Peer Reviewed Journal)
Riddick, E.W., Wu, Z. 2012. Mother-offspring relations: Maternal size and prey quality affect egg size of an acariphagous lady beetle in culture. Psyche. volume 2012, article ID 764350, 7p.
Limited transmission of the ectoparasitic fungus Hesperomyces virescens between lady beetles - (Peer Reviewed Journal)
Cottrell, T.E., Riddick, E.W. 2012. Limited transmission of the ectoparasitic fungus Hesperomyces virescens between lady beetles. Psyche. 2012(814378):7.
A system for harvesting eggs from the pink-spotted lady beetle - (Peer Reviewed Journal)
Allen, M.L., Riddick, E.W. 2012. A system for harvesting eggs from the pink-spotted lady beetle. Psyche. Vol.2012,Article ID 923653,6 pages,2012. Doi:10.1155/2012/923653.
Lima bean lady beetle interactions: spider mite mediates sublethal effects of its host plant on growth and development of its predator - (Peer Reviewed Journal)
Riddick, E.W., Rojas, M.G., Wu, Z. 2011. Lima bean lady beetle interactions: spider mite mediates sublethal effects of its host plant on growth and development of its predator. Arthropod-Plant Interactions. 5(4):287-296.
Living with the enemy: parasites and pathogens of the ladybird Harmonia axyridis - (Peer Reviewed Journal)
Roy, H., Rhule, E., Harding, S., Lawson-Handley, L., Poland, R., Riddick, E.W., Steenberg, T. 2011. Living with the enemy: parasites and pathogens of the ladybird Harmonia axyridis. Biocontrol. 56(4):663-679.
The chemical ecology of Harmonia axyridis - (Peer Reviewed Journal)
Sloggett, J.J., Magro, A., Verheggen, F.J., Hemptinne, J., Hutchison, W.D., Riddick, E.W. 2011. The chemical ecology of Harmonia axyridis. Biocontrol. 56(4):643-661.
Lebia grandis (Coleoptera: Carabidae) - (Peer Reviewed Journal)
Weber, D.C., Riddick, E.W. 2011. Lebia grandis (Coleoptera: Carabidae). Biological Control: A Guide to Natural Enemies in North America. http://www.biocontrol.entomology.cornell.edu/predators/Lebia.html.
Stethorus punctillum (Coleoptera: coccinellidae) - (Book / Chapter)
Riddick, E.W., Rojas, M.G., Morales Ramos, J.A., Allen, M.L., Spencer, B. 2011. Stethorus punctillum (Coleoptera: coccinellidae). Biological Control: A Guide to Natural Enemies in North America. http://www.biocontrol.entomology.cornell.edu/predators/spunctillum.html.
Lima bean – lady beetle interactions: hooked trichomes affect survival of Stethorus punctillum larvae - (Peer Reviewed Journal)
Riddick, E.W., Wu, Z. 2010. Lima bean – lady beetle interactions: hooked trichomes affect survival of Stethorus punctillum larvae. Biocontrol. 56:55-63.
Potential long-term storage of the predatory mite Phytoseiulus persimilis - (Peer Reviewed Journal)
Riddick, E.W., Wu, Z. 2010. Potential long-term storage of the predatory mite Phytoseiulus persimilis. Biocontrol. 55(5):639-644.
Ectoparasitic mite and fungus on Harmonia axyridis - (Abstract Only)
Riddick, E.W. 2010. Ectoparasitic mite and fungus on Harmonia axyridis. IOBC/WPRS Bulletin (Abstract for Conference Proceedings). Vol. 58.
Is the Prevalence and Intensity of the Ectoparasitic Fungus Hesperomyces virescens Related to the Abundance of Entomophagous Coccinellids? - (Peer Reviewed Journal)
Riddick, E.W., Cottrell, T.E. 2010. Is the Prevalence and Intensity of the Ectoparasitic Fungus Hesperomyces virescens Related to the Abundance of Entomophagous Coccinellids?. Bulletin of Insectology. 63:71-78.
Ectoparasitic mite and fungus on an invasive lady beetle: parasite coexistence and influence on host survival - (Peer Reviewed Journal)
Riddick, E.W. 2010. Ectoparasitic mite and fungus on an invasive lady beetle: parasite coexistence and influence on host survival. Bulletin of Insectology. 63 (1):13-20, 2010.
Natural Enemies of the Coccinellidae: Parasites, Pathogens, and Parasitoids - (Peer Reviewed Journal)
Riddick, E. W., Cottrell, T. E., Kidd, K. A. 2009. Natural Enemies of the Coccinellidae: Parasites, Pathogens, and Parasitoids. Biological Control 51 (2009) 306-312.
Benefits and Limitations of factitious prey and artificial diets on life parameters of predatory beetles, bugs, and lacewings: A mini-review - (Peer Reviewed Journal)
Riddick, E.W. 2008. Benefits and Limitations of factitious prey and artificial diets on life parameters of predatory beetles, bugs, and lacewings: A mini-review. BioControl. 54(3):325-339.
Harmonia Axyridis Adults Avoid Catnip and Grapefruit-derived Terpenoids in Laboratory Bioassays - (Peer Reviewed Journal)
Riddick, E.W., Brown, A.E., Chauhan, K.R. 2008. Harmonia Axyridis Adults Avoid Catnip and Grapefruit-derived Terpenoids in Laboratory Bioassays. Bulletin of Insectology. 61(1):81-90.
Sting frequency and progeny production of lab-cultured Cotesia marginiventris - (Peer Reviewed Journal)
Riddick, E.W. Sting frequency and progeny production of lab-cultured Cotesia marginiventris. BioControl. 53(2):295-302. 2008.
Influence of honey and maternal age on egg load of lab-cultured Cotesia marginiventris - (Peer Reviewed Journal)
Riddick, E.W. 2007. Influence of honey and maternal age on egg load of lab-cultured Cotesia marginiventris. BioControl. 52(5):613-618.
EGG LOAD AND BODY SIZE OF LAB-CULTURED COTESIA MARGINIVENTRIS - (Peer Reviewed Journal)
Riddick, E.W. 2006. Egg Load and Body Size of Lab-cultured Cotesia marginiventris. BioControl.51(5):603-610.
The Identification of (-)-B-Caryophyllene as a Gender Specific Terpene Produced by the Multicolored Asian Lady Beetle - (Peer Reviewed Journal)
Brown, A.E., Aldrich, J.R., Riddick, E.W., Holmes, W.E. 2006. The Identification of (-)-B-Caryophyllene as a Gender Specific Terpene Produced by the Multicolored Asian Lady Beetle. Journal of Chemical Ecology. 32:2489-2499.
Influence of host gender on infection rate, density and distribution of the parasitic fungus, Hesperomyces virescens on the multicolored Asian lady beetle Harmonia axyridis - (Peer Reviewed Journal)
Riddick, E. W. 2006. Influence of host gender on infection rate, density and distribution of the parasitic fungus, Hesperomyces virescens on the multicolored Asian lady beetle Harmonia axyridis. J. Insect Sci. 6:42,1-15; available online: insectscience.org/6.42.
PARASITIC FUNGUS FOUND ON MULTICOLORED ASIAN LADY BEETLE AT OVERWINTERING SITE IN PENNSYLVANIA. - (Abstract Only)
Riddick, E. W., Schaefer, P. W. 2006. Parasitic fungus found on multicolored asian lady beetle at overwintering site in Pennsylvania. Meeting Abstract.
INFLUENCE OF HOST GENDER ON INFECTION RATE, DENSITY AND DISTRIBUTION OF PARASITIC FUNGUS ON MULTICOLORED ASIAN LADY BEETLE. - (Abstract Only)
Riddick, E.W. 2006. Influence of host gender on infection rate, density and distribution of parasitic fungus on multicolored asian lady beetle. Meeting Abstract.
THE USE OF GC/MS TO IDENTIFY POTENTIAL AGGREGATION PHEROMONES IN THE MULTICOLORED ASIAN LADY BEETLE - (Abstract Only)
Brown, A.E., Holmes, W.E., Riddick, E.W. 2005. The use of gc/ms to identify potential aggregation pheromones in the multicolored asian lady beetle. Association Official Analytical Chemists Annual Intrl Meeting & Exposition. Meeting Abstract.
Occurrence, density and distribution of the parasitic fungus Hesperomyces virescens Thaxter (Laboulbeniales: Laboulbeniaceae) on the multicolored Asian lady beetle (Coleoptera: Coccinellidae) - (Peer Reviewed Journal)
Riddick, E.W., and Schaefer, P.W. Occurrence, density and distribution of the parasitic fungus Hesperomyces virescens Thaxter (Laboulbeniales: Laboulbeniaceae) on the multicolored Asian lady beetle (Coleoptera: Coccinellidae). Annals of the Entomological Society of America. 98(4):615-624. 2005.
Are lab-cultured Anaphes iole females strictly proovigenic? - (Peer Reviewed Journal)
Riddick, E. W. 2005. Are lab-cultured Anaphes iole females strictly proovigenic?. Biocontrol. 50: 911-919.
Search for repellents, attractants and pheromones of the multicolored Asian lady beetle - (Proceedings)
Riddick, E.W., Aldrich, J.R. 2004. Search for repellents, attractants and pheromones of the multicolored Asian lady beetle. American Entomologist. 50(3):167-168.
Potential of detection and identification of nymphal parasitoids (Hymenoptera: Braconidae) of Lygus bugs (Heteroptera: Miridae) by using polymerase chain reaction and ITS2 sequence analysis techniques - (Peer Reviewed Journal)
Zhu, Y., Riddick, E.W., Williams Iii, L.H., Schotzko, D.J., Logarzo, G.A., Jackson, C.G. 2004. Potential of detection and identification of nymphal parasitoids (Hymenoptera: Braconidae) of Lygus bugs (Heteroptera: Miridae) by using polymerase chain reaction and ITS2 sequence analysis techniques. Insect Molecular Biology. 97(4):743-752.
EGG LOAD OF LAB-CULTURED ANAPHES IOLE AND EFFECTS OF MATE PRESENCE AND EXPOSURE TIME ON LOAD DEPLETION - (Peer Reviewed Journal)
Riddick, E.W. 2005. Egg load of lab-cultured anaphes iole and effects of mate presence and exposure time on load depletion. Biocontrol.
DEET REPELS HARMONIA AXYRIDIS(PALLAS)(COLEOPTERA:COCCINELLIDAE)ADULTS IN LABORATORY BIOASSAYS - (Peer Reviewed Journal)
Riddick, E.W., Aldrich, J.R., and Davis, J.C. Deet repels Harmonia axyridis(Pallas)(Coleoptera:Coccinellidae)adults in laboratory bioassays. J. Entomol. Sci. 39(3):373-385. 2004.
PRODUCTION OF THE PARASITOID COTESIA MARGINIVENTRIS (HYMENOPTERA:BRACONIDAE)IN UNICELLULAR REARING TRAYS USING THE HOST SPODOPTERA EXIGUA (LEPIDOPTERA: NOCTUIDA) - (Peer Reviewed Journal)
Riddick, E.W. 2004. Production of the parasitoid Cotesia marginiventris (Hymenoptera:Braconidae)in unicellular rearing trays using the host Spodoptera exigua (Lepidoptera: Noctuida). Journal of Entomological Science. 39(3):362-372.
Effects of exposure time and food on propagation of the fairyfly Anaphes iole Girault (Hymenoptera: Mymaridae) - (Peer Reviewed Journal)
Riddick, E.W. 2004. Effects of exposure time and food on propagation of the fairyfly Anaphes iole Girault (Hymenoptera: Mymaridae). Journal of Entomological Science. 39(1):147-149.
EFFECTS OF PARASITOID DENSITY AND ARENA SIZE ON PROGENY PRODUCTION OF ANAPHES IOLE GIRAULT (HYMENOPTERA:MYMARIDAE) - (Peer Reviewed Journal)
Riddick, E.W. 2003. Effects of parasitoid density and arena size on progeny production of anaphes iole girault (hymenoptera:mymaridae). Journal of Entomological Science.
FACTORS AFFECTING PROGENY PRODUCTION OF ANAPHES IOLE - (Peer Reviewed Journal)
RIDDICK, E.W. Factors Affecting Progeny Production of Anaphes iole. BIOCONTROL.2003.v48.p.177-189.
Ground beetle (Coleoptera: Carabidae) feeding ecology - (Book / Chapter)
Riddick, E.W. 2004. Ground beetle (Coleoptera: Carabidae) feeding ecology. Encyclopedia of Entomology. Vol 2:1027-1032.
Ground beetle (Coleoptera: Carabidae) feeding ecology - (Book / Chapter)
Riddick, E.W. 2008. Ground beetle (Coleoptera: Carabidae) feeding ecology. Encyclopedia of Entomology. 2nd Edition, Part 7 pp. 1742-1747.
SUPERPARASITISM OCCASIONALLY PRESIDPOSES COTESIA MARGINIVENTRIS(CRESSON)(HYMENOPTERA:BRACONIDAE)TO DEVELOP GREGARIOUSLY IN SPODOPTERA EXIGUA (HUBNER)(LEPIDOPTERA:NOCTUIDAE) - (Peer Reviewed Journal)
EFFECT OF COLD STORAGE ON THE LABORATORY PRODUCTION OF COTESIA MARGINIVENTRIS (HYMENOPTERA: BRACONIDAE) - (Peer Reviewed Journal)
RIDDICK, E.W. EFFECT OF COLD STORAGE ON THE LABORATORY PRODUCTION OF COTESIA MARGINIVENTRIS (HYMENOPTERA: BRACONIDAE). JOURNAL OF ENTOMOLOGICAL SOCIETY. 2001.36(4):366-379.
POTENTIAL FOR MODIFYING THE BEHAVIOR OF THE MULTICOLORED ASIAN LADY BEETLE WITH (COLEOPTERA: COCCINELLIDAE) WITH PLANT-DERIVED NATURAL PRODUCTS - (Peer Reviewed Journal)
WEB PAGE FOR LEBIA GRANDIS: A REVISION - (Other)
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