Colorado potato beetle

Pallis, S., A. Alyokhin, B. Manley, T. Rodrigues, E. Barnes, and K. Narva. 2023. Baseline susceptibility to a novel dsRNA-based insecticide across US populations of Colorado potato beetle. Agriculture 2023, 13, 2283. https://doi.org/10.3390/agriculture13122283

Insecticides /

The Colorado potato beetle, Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae) is an insect defoliator of the potato, Solanum tuberosum L. This species thrives in agricultural environments because of its flexible and complex life history, as well as its ability to evolve insecticide resistance. As a result, it has become a widely distributed agricultural pest. Ledprona (trade […]

Pallis, S., A. Alyokhin, B. Manley, T. Rodrigues, E. Barnes, and K. Narva. 2023. Baseline susceptibility to a novel dsRNA-based insecticide across US populations of Colorado potato beetle. Agriculture 2023, 13, 2283. https://doi.org/10.3390/agriculture13122283 Read More »

Pallis, S., A. Alyokhin, B. Manley, T. Rodrigues, E. Barnes, and K. Narva. 2023. Effects of low doses of a novel dsRNA-based biopesticide (Calantha) on the Colorado potato beetle. Journal of Economic Entomology 116: 456-461

Insecticides /

The Colorado potato beetle, Leptinotarsa decemlineata (Coleoptera: Chrysomelidae) is a destructive pest of the cultivated potato, Solanum tuberosum. Members of this species are well-suited to agricultural habitats because of a suite of physiological adaptations and their ability to evolve resistance to multiple insecticides. Recently, a novel double-stranded RNA (dsRNA) insecticide (Calantha, active ingredient ledprona) has

Pallis, S., A. Alyokhin, B. Manley, T. Rodrigues, E. Barnes, and K. Narva. 2023. Effects of low doses of a novel dsRNA-based biopesticide (Calantha) on the Colorado potato beetle. Journal of Economic Entomology 116: 456-461 Read More »

Yoon, K. A., J. H. Kim, R. Nauen, A. Alyokhin, J. M. Clark, and S. H. Lee. 2022. Characterization of molecular and kinetic properties of two acetylcholinesterases from the Colorado potato beetle, Leptinotarsa decemlineata. Pesticide Biochemistry and Physiology 185: 105137. https://doi.org/10.1016/j.pestbp.2022.105137

Insecticides, Microevolution /

The molecular and biochemical properties of two acetylcholinesterases (LdAChE1 and LdAChE2) from the Colorado potato beetle, Leptinotarsa decemlineata, were investigated in this study. Polyacrylamide gel electrophoresis in conjunction with western blotting with LdAChE1- or LdAChE2-specific antibodies suggested that LdAChE1 exists in a soluble form, whereas LdAChE2 exists in both soluble and amphiphilic forms with a

Yoon, K. A., J. H. Kim, R. Nauen, A. Alyokhin, J. M. Clark, and S. H. Lee. 2022. Characterization of molecular and kinetic properties of two acetylcholinesterases from the Colorado potato beetle, Leptinotarsa decemlineata. Pesticide Biochemistry and Physiology 185: 105137. https://doi.org/10.1016/j.pestbp.2022.105137 Read More »

Pallis, S., A. Alyokhin, B. Manley, T. B. Rodrigues, A. Buzza, E. Barnes, and K. Narva. 2022. Toxicity of a novel dsRNA-based insecticide to the Colorado potato beetle in laboratory and field trials. Pest Management Science 78: 3836-3848.

Insecticides /

BACKGROUND: The Colorado potato beetle, Leptinotarsa decemlineata (Coleoptera: Chrysomelidae) is one of the most notorious pests of the potato, Solanum tuberosum. Potato beetles are capable of developing resistance to various insecticides in relatively few generations. Novel and effective means of controlling Colorado potato beetle populations are constantly required to protect potato crops and prevent loss

Pallis, S., A. Alyokhin, B. Manley, T. B. Rodrigues, A. Buzza, E. Barnes, and K. Narva. 2022. Toxicity of a novel dsRNA-based insecticide to the Colorado potato beetle in laboratory and field trials. Pest Management Science 78: 3836-3848. Read More »

Rodrigues, T. B., S. K Mishra, K. Sridharan, E. R. Barnes, A. Alyokhin, R. Tuttle, W. Kokulapalan, D. Garby, N. J. Skizim, Y. Tang, B. Manley, L. Aulisa, R. D. Flannagan, C. Cobb, and K. E. Narva. 2021. First sprayable double-stranded RNA-based biopesticide product targets proteasome subunit beta type-5 in Colorado potato beetle (Leptinotarsa decemlineata). Frontiers in Plant Science 12:728652. https://doi.org/10.3389/fpls.2021.728652  

Insecticides /

Colorado potato beetle (CPB, Leptinotarsa decemlineata) is a major pest of potato and other solanaceous vegetables in the Northern Hemisphere. The insect feeds on leaves and can completely defoliate crops. Because of the repeated use of single insecticide classes without rotating active ingredients, many chemicals are no longer effective in controlling CPB. Ledprona is a

Rodrigues, T. B., S. K Mishra, K. Sridharan, E. R. Barnes, A. Alyokhin, R. Tuttle, W. Kokulapalan, D. Garby, N. J. Skizim, Y. Tang, B. Manley, L. Aulisa, R. D. Flannagan, C. Cobb, and K. E. Narva. 2021. First sprayable double-stranded RNA-based biopesticide product targets proteasome subunit beta type-5 in Colorado potato beetle (Leptinotarsa decemlineata). Frontiers in Plant Science 12:728652. https://doi.org/10.3389/fpls.2021.728652   Read More »

Insinga, J.K., A. Alyokhin, J. Hao, T. Ge, N. F. Marangoni, A. Baron. 2021. Dickeya dianthicola is not vectored by two common insect pests of potato. PhytoFrontiers 1: 160-172. https://doi.org/10.1094/PHYTOFR-12-20-0049-R

Abundance Factors / ,

Dickeya dianthicola (Samson) is an important pathogen causing blackleg disease of potato. Previous work suggested that insects might vector species of Pectobacteriaceae between plants but no conclusive work has confirmed this. Green peach aphids (Myzus persicae Sulzer) and Colorado potato beetles (Leptinotarsa decemlineata Say) are aggressive potato pests and related to known vectors of several

Insinga, J.K., A. Alyokhin, J. Hao, T. Ge, N. F. Marangoni, A. Baron. 2021. Dickeya dianthicola is not vectored by two common insect pests of potato. PhytoFrontiers 1: 160-172. https://doi.org/10.1094/PHYTOFR-12-20-0049-R Read More »

Liu, Y., T. Moural, B.K.S. Koirala, J. Hernandez, Z. Shen, A. Alyokhin, and F. Zhu. 2021. Structural and functional characterization of one unclassified glutathione s-transferase in xenobiotic adaptation of Leptinotarsa decemlineata. International Journal of Molecular Sciences 22: 11921. https://doi.org/10.3390/ijms222111921

Microevolution /

Arthropod Glutathione S-transferases (GSTs) constitute a large family of multifunctional enzymes that are mainly associated with xenobiotic or stress adaptation. GST-mediated xenobiotic adaptation takes place through direct metabolism or sequestration of xenobiotics, and/or indirectly by providing protection against oxidative stress induced by xenobiotic exposure. To date, the roles of GSTs in xenobiotic adaptation in the

Liu, Y., T. Moural, B.K.S. Koirala, J. Hernandez, Z. Shen, A. Alyokhin, and F. Zhu. 2021. Structural and functional characterization of one unclassified glutathione s-transferase in xenobiotic adaptation of Leptinotarsa decemlineata. International Journal of Molecular Sciences 22: 11921. https://doi.org/10.3390/ijms222111921 Read More »

Mishra, S., J. Dee, W. Moar, J. Dufner-Beattie, J. Baum, N. P. Dias, A. Alyokhin, A. Buzza, S.I. Rondon, M. Clough, and S. Menasha. 2021. Selection for high levels of resistance to double-stranded RNA (dsRNA) in Colorado potato beetle (Leptinotarsa decemlineata Say) using non-transgenic foliar delivery. Scientific Reports 11 (2021): 6523. https://doi.org/10.1038/s41598-021-85876-1

Microevolution /

Insecticidal double-stranded RNAs (dsRNAs) silence expression of vital genes by activating the RNA interference (RNAi) mechanism in insect cells. Despite high commercial interest in insecticidal dsRNA, information on resistance to dsRNA is scarce, particularly for dsRNA products with non-transgenic delivery (ex. foliar/topical application) nearing regulatory review. We report the development of the CEAS 300 population

Mishra, S., J. Dee, W. Moar, J. Dufner-Beattie, J. Baum, N. P. Dias, A. Alyokhin, A. Buzza, S.I. Rondon, M. Clough, and S. Menasha. 2021. Selection for high levels of resistance to double-stranded RNA (dsRNA) in Colorado potato beetle (Leptinotarsa decemlineata Say) using non-transgenic foliar delivery. Scientific Reports 11 (2021): 6523. https://doi.org/10.1038/s41598-021-85876-1 Read More »

Klein, C., M. Baker, A. Alyokhin, and D. Mota-Sanchez. 2021. Geographic variation in dominance of spinosad resistance in Colorado potato beetles (Coleoptera: Chrysomelidae). Journal of Economic Entomology 114: 320-325.

Microevolution /

Eastern New York State is frequently the site of Colorado potato beetle (Leptinotarsa decemlineata Say) populations with the highest observed levels of insecticide resistance to a range of active ingredients. The dominance of a resistant phenotype will affect its rate of increase and the potential for management. On organic farms on Long Island, L. decemlineata

Klein, C., M. Baker, A. Alyokhin, and D. Mota-Sanchez. 2021. Geographic variation in dominance of spinosad resistance in Colorado potato beetles (Coleoptera: Chrysomelidae). Journal of Economic Entomology 114: 320-325. Read More »

Alyokhin, A. and N. Baron. 2021. Increased cannibalism in Colorado potato beetles feeding on non-preferred host plants in laboratory. Entomologia Experimentalis et Applicata 169: 249-254.

Abundance Factors /

Colorado potato beetle, Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae), is an oligophagous herbivore that feeds on several plant species in the family Solanaceae. Cannibalism is common in this species and accounts for a significant part of natural field mortality.We investigated effects of feeding on potato (Solanum tuberosum L., preferred host), tomato (Solanum lycopersicum L., nonpreferred host),

Alyokhin, A. and N. Baron. 2021. Increased cannibalism in Colorado potato beetles feeding on non-preferred host plants in laboratory. Entomologia Experimentalis et Applicata 169: 249-254. Read More »