TR4 spreads through the dirt and infects plants via their root systems. Worse, it produces chlamydospores, or " resting spores, " which can lie dormant in the soil for decades.

TR4 通传播并通根系感染植物。 更糟糕是，会产生厚膜孢子或“休眠孢子” ，以在壤中休眠数十年。