Psyllids Up, Lso Incidence Down

Pacific Northwest Pest Alert Network

The weekly report from the Pacific Pest Pest Alert Network says that psyllid abundance is rising, but Lso incidence remains far lower than they’ve ever recorded for a season.

All psyllids collected last week tested negative for Lso (liberibacter), the bacterium that causes zebra chip.

The late-season rise in psyllid captures is consistent with the general pattern observed for the last five years. However, overall psyllid abundance is still only about 5-10 percent of what was seen last year at this time.  Lso incidence so far is lower than ever recorded for a season (1.33 percent).

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