No late blight spores have been detected in Idaho yet. With cool and humid temperatures in the Rupert area last week the late blight risk remains moderate. However, with the hot dry weather now in the region the risk of late blight in the rest of the Snake River Valley is low.
Late blight has not yet been reported in Idaho. However, late blight risk is elevated across S Idaho with the current cool wet weather conditions.
This week conditions were more conducive to late blight across the snake river valley with cool cloudy weather. But late blight has not been reported in Idaho yet and no spores have been detected.
This week late blight was found in a home owners garden in western Washington state near Mt Vernon. Late blight has not yet been reported in Idaho.
Welcome to the weekly spore trapping bulletin. No spores of the 3 target pathogens have been detected in any of the spore traps this week and the risk level remains at green.
Welcome to the first spore trapping report for the 2020 growing season. As well as spore trapping data, this year we are also adding additional information collected from bucket traps for insects starting from next week.
Stripe rust has been found in Western Idaho.
Cull piles are an important reservoir of potato pathogens and must be destroyed in the spring to prevent them acting as a source of disease epidemics.
Late blight continues to be a threat in S Idaho potato production. Click Read More for early season control recommendations.
Seed-borne diseases of potato represent a significant constraint to potato production in the US. Click Read More for recommendations on pre- and early season management practices to control seed borne potato diseases.