Weather data during periods with and without discharge of Fusarium graminearum ascospores, and with and without peaks of discharge, in North Italy in 2012 to 2014.

1 Tav, Tmin, Tmax = average, min, and max daily temperature; RHav, RHmin, RHmax = average, min, and max daily relative humidity; WDt = total wetness duration; RH90 = hours with RH > 90%; VPD = vapor pressure deficit; Rt = total rain.2 0 = days with no ascospore discharge or no ascospore peaks; 1 = days with ascospore discharge or ascospore peak.3 Ascospores were sampled with a volumetric spore sampler from the air above maize stalk residues bearing mature F. graminearum perithecia.4 Peaks are defined as days with ≥ 30 ascospores / m3 air.5 Probability level of the t-test for differences between the two ascospore groups (0 = no, 1 = yes).6 Probability level of the t-test of differences between presence and peak of ascospores.Weather data during periods with and without discharge of Fusarium graminearum ascospores, and with and without peaks of discharge, in North Italy in 2012 to 2014.