A new potato alert was posted to PNWPestAlert.net.
"Potato psyllids continue to be found on yellow sticky cards across several sites being monitored by the University of Idaho. Across most sites, numbers are more or less similar to last week. Two sites (one in Twin Falls County and one in Jerome County) showed relatively high numbers compared to the previous week.
"For the first time this year, a potato psyllid was found in the UI sampling network in Canyon County (psyllids had previously been found in this county by crop consultants). No potato psyllids have been found in eastern Idaho since the week of July 23. Crop consultants submitted yellow sticky card samples this week with potato psyllids from several sites in Elmore County and one site in Twin Falls County. A portion of the psyllids collected in previous weeks continues to test positive for liberibacter, the causal agent of ZC. See below to view a table that details where (by county) and when potato psyllids have been found so far during this season in Idaho.
"We continue to encourage vigorous scouting efforts. We suggest ground-rigging along edges of fields if possible to ensure adequate coverage of insecticides along field edges. Refer to the sites below for guidance on scouting and IPM programs for potato psyllids and to view trap captures in Idaho so far over the season."
To view the full alert, and to download any attached files, please go to www.pnwpestalert.net.
© 2013 Potato Grower® Magazine