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United States Department of Agriculture

Agricultural Research Service

Research Project: MANAGEMENT OF CITRUS AND DATE GENETIC RESOURCES AND INFORMATION Title: Behavioral responses of adult potato psyllid, Bactericera cockerelli (Hemiptera: Triozidae), to potato germplasm and transmission of Candidatus Liberibacter psyllaurous

Authors
item Butler, Casey -
item Gonzalez, Beatriz -
item Keremane, Manjunath
item Lee, Richard
item Novy, Richard
item Miller, J. Creighton -
item Trumble, John -

Submitted to: Crop Protection Journal
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: May 7, 2011
Publication Date: September 20, 2011
Citation: Butler, C., Gonzalez, B., Keremane, M.L., Lee, R.F., Novy, R.G., Miller, J., Trumble, J. 2011. Behavioral responses of adult potato psyllid, Bactericera cockerelli (Hemiptera: Triozidae), to potato germplasm and transmission of Candidatus Liberibacter psyllaurous. Crop Protection Journal. 30(9):p1233-1238.

Interpretive Summary: The potato psyllid, Bactericera cockerelli, is a major pest of potatoes and causes yield loss by direct feeding on the plants and by transmitting a bacterial pathogen, Candidatus Liberibacter psyllaurous (a.k.a. Candidatus Liberibacter solanacearum). In this study, different potato varieties or genotypes were evaluated to determine if there were differences in the adult potato psyllid behavior and if there were differences in the psyllids ability to transmit Ca. L. psyllaurous. Using a standardized method of evaluating psyllid behavior, there was a significant effect on the occurrence and duration of psyllid feed behavior as well as transmission of Ca. L. psyllaurous. The results are useful for development of an integrated pest management program for the potato psyllid and Ca. L. psyllaurous control on potatoes.

Technical Abstract: The potato psyllid, Bactericera cockerelli (Sulc) (Hemiptera: Triozidae), is a major pest of potatoes that can cause yield loss by direct feeding on crop plants and by vectoring a bacterial pathogen, Candidatus Liberibacter psyllaurous (a.k.a. Candidatus Liberibacter solanacearum). In recent years, there have been no studies regarding resistance of potato to the potato psyllid or the bacterial pathogen that the psyllid vectors. Thus, the objectives of this study were to determine the effects of potato germplasm on adult potato psyllid behavior and transmission of Ca. L. psyllaurous. Potato varieties and breeding clones tested included 'Atlantic', 'GemStar Russet', '463-4', 'P2-3', 'P2-4', 'Etb 5-31-3', 'Etb 6-21-3', 'Etb 6-21-5', 'A00ETB12-2', 'A00ETB12-3', 'A05379-69', 'A05379-211', 'Russet Norkotah', 'King Harry', 'NY138', 'BTX1749-1W/Y', 'NDTX731-1R', 'TX05249-10W', 'ATX85404-8W', 'ATTX98500-3PW/Y', 'BTX1544-2W/Y', and 'AOTX95295-1W'. Plant genotype significantly impacted the occurrence and duration of psyllid probing, the duration of psyllid cleaning, resting, and the amount of time psyllids spent off the potato leaflet as well as transmission of Ca. L. psyllaurous. For the potato genotypes in which there were significant decreases in transmission compared to controls, there was often an unclear relationship between the occurrences and duration of behaviors and subsequent bacterial transmission. The results are useful for development of an integrated pest management program for the potato psyllid and Ca. L. psyllaurous control on potatoes.

Last Modified: 10/30/2014
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