Adult Citrus Leafminers (Phyllocnistis citrella) Are Not Efficient Vectors for Xanthomonas axonopodis pv. citri

Plant Disease
J BelasqueJohn S Hartung

Abstract

Interest in the interaction between the citrus leafminer (Phyllocnistis citrella) and citrus bacterial canker, caused by Xanthomonas axonopodis pv. citri, has increased as a greater incidence and severity of canker-diseased plants was observed in groves infested with the citrus leafminer. To determine whether adults of the citrus leafminer could act as vectors of citrus canker, we investigated two potential mechanisms for direct spread by leafminer adults using experimental microcosms. First, adult leafminers were raised on canker-infected foliage and were allowed to mate and lay eggs on healthy plants. These plants then were observed for development of citrus canker symptoms. In a second set of experiments, adults raised on healthy plants were given free access to canker-diseased plants during the period in which they mated and laid eggs on healthy plants. In all, 3,119 mines were produced by developing larvae on a total of 2,384 leaves examined for citrus canker symptoms. No symptoms of citrus bacterial canker disease were observed on any of the healthy test plants in 37 independent experimental trials conducted to test these two potential mechanisms of spread of citrus canker, and the pathogen was not recovered from insects ...Continue Reading

References

Jan 1, 1997·European Journal of Clinical Pharmacology·M L McFadyenT M Ludden
Jan 1, 1991·Annual Review of Phytopathology·R E Stall, E L Civerolo
Jan 1, 2004·Molecular Plant Pathology·James H GrahamDiann S Achor
Nov 1, 1997·Plant Disease·T R GottwaldT D Riley

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Citations

Nov 14, 2007·Proceedings of the National Academy of Sciences of the United States of America·Wenbin LiJohn S Hartung

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