Seasonal Population Dynamics of the Potato Psyllid (Hemiptera: Triozidae) and Its Associated Pathogen “Candidatus Liberibacter Solanacearum” in Potatoes in the Southern Great Plains of North America

J. A. Goolsby; J. J. Adamczyk; J. M. Crosslin; N. N. Troxclair; J. R. Anciso; G. G. Bester; J. D. Bradshaw; E. D. Bynum; L. A. Carpio; D. C. Henne; A. Joshi; J. E. Munyaneza; P. Porter; P. E. Sloderbeck; J. R. Supak; C. M. Rush; F. J. Willett; B. J. Zechmann; B. A. Zens

doi:10.1603/EC11435

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1 August 2012 Seasonal Population Dynamics of the Potato Psyllid (Hemiptera: Triozidae) and Its Associated Pathogen “Candidatus Liberibacter Solanacearum” in Potatoes in the Southern Great Plains of North America

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J. A. Goolsby,^1,* J. J. Adamczyk,¹ J. M. Crosslin,² N. N. Troxclair,³ J. R. Anciso,⁴ G. G. Bester,⁵ J. D. Bradshaw,⁶ E. D. Bynum,⁷ L. A. Carpio,⁸ D. C. Henne,⁹ A. Joshi,¹⁰ J. E. Munyaneza,¹⁰ P. Porter,¹¹ P. E. Sloderbeck,⁹ J. R. Supak,¹² C. M. Rush,¹³ F. J. Willett,¹⁴ B. J. Zechmann,⁸ B. A. Zens⁸

¹1USDA-ARS, Kika de la Garza Subtropical Agricultural Research Center, Weslaco, TX 78596.
²3USDA—ARS, Presser, WA 99350.
³4Texas Agrilife Extension, Uvalde, TX 78801.
⁴5Texas Agrilife Extension, Weslaco, TX 78696.
⁵6Frito Lay, Rhinelander, WI 54501.
⁶7University of Nebraska, Panhandle Research and Extension Center, Scottsbluff, NE 69361.
⁷8Texas Agrilife Research, Amarillo, TX 79106.
⁸9CSS Farms, Minden, NE 69361; and Dalhart, TX, 79022.
⁹10Texas Agrilife Research, Weslaco, TX 78596.
¹⁰11K-State Extension, Garden City, KS 67846.
¹¹12Texas Agrilife Extension, Lubbock, TX 79403.
¹²13Texas Agrilife Research, College Station, TX 77843.
¹³14Texas Agrilife Research, Rushland, TX 79106.
¹⁴15Agro Engineering, Alamosa, CO 81101.

^*Corresponding author, e-mail: john.goolsby@ars.usda.gov; Current address: USDA-ARS, 22675 N. Moorefield Rd., Edinburg, TX 78541.

J. of Economic Entomology, 105(4):1268-1276 (2012). https://doi.org/10.1603/EC11435

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Abstract

The potato psyllid, Bactericera cockerelli (Sulc) (Hemiptera: Triozidae), and its associated pathogen “Candidatus Liberibacter solanacearum” (Ca. L. solanacearum), the putative causal agent of zebra chip (ZC) disease in potatoes (Solanum tuberosum L.), were sampled in commercial potato fields and untreated control plots for 3 yr in multiple locations in Texas, Kansas, Nebraska, and Colorado. Populations of the potato psyllid varied across years and across potato growing regions. However, the percentage of potato psyllids infected with Ca. L. solanacearum although variable across years, was consistently highest in the Lower Rio Grande Valley of Texas (LRGV), the reported overwintering location for this pest. The numbers of Ca. L. solanacearum—infected psyllids collected on field traps and large nymphs counted on leaf samples were both positively correlated with the final percentage of ZC in tubers. In the LRGV, where vector and disease pressure is the highest, population levels of immature life stages of the psyllid and percentage of ZC differed greatly between commercial and untreated fields. These results show that the pest management program that was used can be effective at controlling development of the psyllid and ultimately reducing the incidence of ZC.

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J. A. Goolsby, J. J. Adamczyk, J. M. Crosslin, N. N. Troxclair, J. R. Anciso, G. G. Bester, J. D. Bradshaw, E. D. Bynum, L. A. Carpio, D. C. Henne, A. Joshi, J. E. Munyaneza, P. Porter, P. E. Sloderbeck, J. R. Supak, C. M. Rush, F. J. Willett, B. J. Zechmann, and B. A. Zens "Seasonal Population Dynamics of the Potato Psyllid (Hemiptera: Triozidae) and Its Associated Pathogen “Candidatus Liberibacter Solanacearum” in Potatoes in the Southern Great Plains of North America," Journal of Economic Entomology 105(4), 1268-1276, (1 August 2012). https://doi.org/10.1603/EC11435

Received: 27 December 2011; Accepted: 1 May 2012; Published: 1 August 2012

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Journal of Economic Entomology
Vol. 105 • No. 4
August 2012

KEYWORDS

areawide pest management

Bactericera cockerelli

insect vector

Liberibacter

zebra chip

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J. A. Goolsby, J. J. Adamczyk, J. M. Crosslin, N. N. Troxclair, J. R. Anciso, G. G. Bester, J. D. Bradshaw, E. D. Bynum, L. A. Carpio, D. C. Henne, A. Joshi, J. E. Munyaneza, P. Porter, P. E. Sloderbeck, J. R. Supak, C. M. Rush, F. J. Willett, B. J. Zechmann, B. A. Zens "Seasonal Population Dynamics of the Potato Psyllid (Hemiptera: Triozidae) and Its Associated Pathogen “Candidatus Liberibacter Solanacearum” in Potatoes in the Southern Great Plains of North America," Journal of Economic Entomology, 105(4), 1268-1276, (1 August 2012)

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