18/06/2019
Changing weather conditions heaps blight pressure on potato growers, according to Corteva Agriscience: https://wrightsregister.com/potatoes/changing-weather-conditions-heaps-blight-pressure-on-potato-growers/
Farmers are facing challenging conditions in which to control late blight after Hutton Criteria disease warnings were declared in key potato-growing areas. A Hutton Criteria period occurs when two consecutive days with a minimum temperature of 10C, and at least six hours of relative humidity (90%).