The Pacific Northwest Pest alert is reporting that Lso-positive psyllids have been found in Idaho.
They had traps deployed in 83 fields and found a total of 59 psyllids across 29 of those monitored fields.
Psyllids were collected on sticky traps in potato in the following counties: Payette (1 field), Canyon (11 fields), Elmore (3 fields), Twin Falls (10 fields), Jerome (3 fields), and Cassia (1 field).
From last week’s samples, 5 psyllids tested positive for Lso (liberibacter), the bacterium associated with zebra chip disease (ZC). These hot psyllids were collected from one field in Payette County and two fields in Twin Falls County. In addition, one psyllid collected from a field in Canyon County in mid-June (before our monitoring program had officially started) tested positive for Lso.
Given the incidence of Lso observed in psyllids, they strongly urge growers and crop consultants to maintain their IPM programs.
More information can be found here: http://www.uidaho.edu/cals/
–Click on the links under “Updated weekly reports” for details on trap captures.
–Click on the “Psyllid Management” link on the left panel for information on psyllid and zebra chip biology and management.
