PDF%23:~:text=The%20cells%20in%20the%20canker,conditions%20of%20temperature%20and%20moisture.&text=As%20a%20result%20the%20diseased,above%20the%20normal%20leaf%20surface.
PDF%23:~:text=The%20cells%20in%20the%20canker,conditions%20of%20temperature%20and%20moisture.&text=As%20a%20result%20the%20diseased,above%20the%20normal%20leaf%20surface.