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 过泥土传过根系感染植物。 更糟糕是，它会产生厚膜子或“子” ，它们可以在土壤中数十年。