| seasonal flight activity of two homalodisca species (homoptera: cicadellidae) that spread xylella fastidiosa in southern california. | homalodisca coagulata (say) and homalodisca lacerta (fowler) are vectors of a new bacterial disease of oleander in california known as oleander leaf scorch, induced by the bacterium xylella fastidiosa. h. coagulata also has been implicated in the spread of the strain of x. fastidiosa that induces pierce's disease of grapevines in california. we monitored the flight activity of h. coagulata and h. lacerta in oleander and citrus by using yellow sticky cards at three southern california locations w ... | 2001 | 11777056 |