Jeff Miller

Jeff Miller, with Miller Research in Rupert, Idaho, will offer a field day Aug. 15.

Miller Research plans a potato pest-management field day and tour Aug. 15 at its lab near Rupert, Idaho.

The free annual event is set from 10 a.m. to 1 p.m. at 426 E. 200 N.

“It has been, generally speaking, a good year in that we don’t have a lot of pests,” principal Jeff Miller said.

Some growers in the state’s south-central and east regions reported Seed Piece Decay — which can reduce yields and cause gaps in rows if it occurs before the plant emerges — “but those were somewhat isolated and it wasn’t widespread,” he said. It occurred at above-normal levels in some locations where seed was planted ahead of heavy rain.

Crop development caught up to long-term averages in some locations where heavy spring rain delayed planting, Miller said.

“We really haven’t had any insect issues,” he said July 22. Some psyllids carrying the virus associated with Zebra chip disease have been reported, but to date not at levels causing major concern.

Topics covered on the tour are to include disease susceptibility of varieties with and without fungicide management; fungicides for controlling early blight, brown spot, white mold and black dot; Rhizoctonia management; fungicide programs for managing pink rot and Pythium leak; trapping spores to manage foliar diseases; and recent findings by the Pacific Northwest Potato Research Consortium.

A free lunch will follow. Pesticide and pest-management credits are available.

RSVP by Aug. 7 to Cheryn Clayton, 208-531-5124 or

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