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番茄叶霉病菌（Ｃｌａｄｏｓｐｒｏｒｉｕｍｆｕｌｖｕｍ）菌丝生长的适宜培养基为ＰＳＡ培养基和大麦培养基．菌丝生长的适宜温度为２０～２５℃，ｐＨ为５．０～６．０分生孢子萌发的适宜温度为２５℃．ｐＨ为４．０～５．０．相对湿度低于８６％时，分生孢子不能萌发．空气有利于孢子萌发．该病菌在ＰＳＡ培养基上培养４天后开始产孢，培养１３天累积产孢量最多．光照对产孢有明显抑制作用．在病叶表面越冬的分生孢子萌发率可达２０％左右．分生孢子的致死温度为４５℃，５ｍｉｎ。
Suitable media for mycelial growth of Cladosporium fulvum are PSA medium and barley medium. The suitable temperature for mycelium growth is 20 ~ 25 ℃, the suitable temperature for conidiospore germination is 5.0 ~ 6.0 and the optimum temperature is 25 ℃. The pH is 4.0 to 5.0. When the relative humidity is less than 86%, the conidia can not germinate. Air is good for spore germination. The bacteria began sporulation on PSA medium for 4 days, and accumulated 13 days after culture. Light on the spores have a significant inhibitory effect. In diseased leaves overwintering conidia germination rate of up to 20%. The lethal temperature of conidia is 45 ℃, 5min.