近１０年的连续观测研究得知，引起红松落针病的流行高峰期为７月中、下旬，与温度关系最大（Ｒ复＝０．８４３６）；日流行规律则呈“Ｕ”型曲线，两次飞散高峰分时出现在４时和２０时，亦与林内温度呈正相关。孢子飞散高峰时正值寄主二氧化碳呼出量最小、气孔开放面积最大时刻。 Nearly 10 years of continuous observational studies have shown that the peak of red pine needle-dropping disease caused by the peak in mid-July and late, with the maximum temperature (R complex = 0.8436); daily prevalence was “U” -type curve , The peak of the two scattering at 4 o’clock and 20 o’clock, also with the forest temperature was positively correlated. At the peak of spore flying, positive host carbon dioxide exhaled at the moment, the largest moment of stoma opening area.