An updated version of guidelines for anaging insects in potatoes in the Pacific Northwest has been posted to the Web site, http://www.potatoes.com/Research.
The document is authored by Alan Schreiber, Agriculture Development Group Inc.; Andrew Jensen, Washington State Potato Commission; Keith Pike, Washington State University; and Gary Reed, Oregon State University.
These guidelines are an update of the 2006 version. Changes include items such as products no longer registered on potatoes (such as Di-Syston and Guthion). Newly registered produts, such as Acramite and Beleaf, have been added.
There are some changes in use patterns, such as Penncap M is no longer recommended for use on aphids and Assail is recommended for use on beet leafhopper.
In addition, there are two significant additions to the guidelines. First, with the help of Juan Alvarez, a University of Idaho entomologist, Idaho is included. Second, because of the surge in generic products, tracking what is in the package has become increasingly difficult, the authors say.