Documentation of an Extended Latent Infection Period by <i>Phakopsora pachyrhizi</i>, the Soybean Rust Pathogen

Fig. 2. Relationships between soybean developmental stages and concentrations of DNA of Phakopsora pachyrhizi, the soybean rust pathogen, in soybean leaves in four fields. Concentrations are expressed as pg of pathogen DNA per 10 ng of soybean DNA. Arrows indicate when symptoms were first observed. Symptoms were not observed in Field 1.



Image from Plant Health Progress article:
Documentation of an Extended Latent Infection Period by Phakopsora pachyrhizi, the Soybean Rust Pathogen