psyllids

WSU Researchers say they have found potato psyllids on just three of 55 sticky cards they’ve placed in their sampling fields.   At this time last year they had collected more than 3,200. That’s why they expect that an infestation to come though not as large as last year and not necessarily in every field.   Recomme...

WSU researchers found potato psyllids on 100 percent of their fields late last week with an average of 29 psyllids per card, and are seeing 10 times the amount of psyllids this year than last year.   Of the psyllids captured and tested a small number have tested positive for the virus that causes zebra chip disease.  ...

WSU Researchers found potato psyllids in 88 percent of the fields they examined last week and the numbers this year are worse than previous years.   The largest numbers of psyllids are in the Lower Columbia Basin.   WSU Scientists are notifying potato growers of the particularly large numbers because psyllids carry zebra chip disease and the first reports are usually in July.   ...