David Owens, Extension Entomologist, owensd@udel.edu Several uses have recently been added for Tolfenpyrad, the active ingredient in Torac, a group 21A insecticide/group 39 fungicide. It has efficacy on thrips, aphids, several leps, and Colorado potato beetle. It is also labeled… Continue Reading
The Potato Association of America meetings were held last week in Fargo, ND. Interesting items of note were: Scottish scientists (including Ian Toth and Gerry Saddler) recommend regulating Dickeya dianthicola as A2 quarantine pest. They also recommend a zero tolerance… Continue Reading
Steve Johnson, Crops Specialist, University of Maine; stevenj@maine.edu The Maine winter grow-out test (Florida Test) consists of a 400-tuber sample of each seed lot (larger than 1 acre in size). These are planted and evaluated for virus levels to ensure… Continue Reading
Nathan Kleczewski, Extension Specialist – Plant Pathology; nkleczew@udel.edu; @Delmarplantdoc Late Blight was reported 5/29 near the NC –VA border. Greenrow – May 1, 2017 Frederica Date DSV Total DSV P Value 7/5-7/10 11 60 504 6/23-7/5 8 49 467… Continue Reading
Nathan Kleczewski, Extension Specialist – Plant Pathology; nkleczew@udel.edu; @Delmarplantdoc Late Blight was reported 5/29 near the NC –VA border. Greenrow – May 1, 2017 Frederica Date DSV Total DSV P Value 6/21-6/23 3 41 386 6/16-6/21 8 38 379… Continue Reading
