Behavioral responses of adult potato psyllid, Bactericera cockerelli (Hemiptera: Triozidae), to potato germplasm and transmission of Candidatus Liberibacter psyllaurous

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 transmitting a bacterial pathogen, Candidatus Liberibacter psyllaurous (a.k.a. Candidatus Liberibacter solanacearum) associated with...

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Bibliographic Details
Published in:Crop protection 2011-09, Vol.30 (9), p.1233-1238
Main Authors: Butler, Casey D., Gonzalez, Beatriz, Manjunath, Keremane L., Lee, Richard F., Novy, Richard G., Miller, J. Creighton, Trumble, John T.
Format: Article
Language:English
Subjects:
Bacteria
Crop protection
Host plant resistance
IPM
Zebra chip
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Summary: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 transmitting a bacterial pathogen, Candidatus Liberibacter psyllaurous (a.k.a. Candidatus Liberibacter solanacearum) associated with zebra chip disease of the crop. In recent years, there have been no studies regarding resistance of potato to the potato psyllid or the bacterial pathogen that the psyllid transmits. 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. A total of twenty-two potato ( Solanum tuberosum L.) breeding clones and varieties were examined. Plant genotype significantly affected 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. We discuss the implications of our results for an integrated pest management program for the potato psyllid and Ca. L. psyllaurous control on potatoes. ► The effects of potato germplasm on Bactericera cockerelli behavior and trasmission of zebra chip were examined. ► Plant genotype significantly impacted the occurrence and duration of various behaviors. ► Potato germplasm also decreased pathogen transmission compared to controls.
ISSN:0261-2194
1873-6904
DOI:10.1016/j.cropro.2011.05.006