123045
Environmental stress factors may also be involved , as reports have indicated that herbicide application and chlorosis caused by iron deficiency may increase susceptibility of " D. dryina " .
 chlorosis
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 chlorosis