Explanation: Very important to know what crop you're talking about, as Cetacea says. It seems that German uses Dörrfleckenkrankheit for two entirely different diseases: gray speck in oats is caused by a manganese deficiency, and early blight in tomatoes (and potatoes) is caused by the fungal pathogen Alternaria solani (I'm familiar with that one, as I lived and worked in a vegetable production area much of my life). The two web sites I gave you illustrate both German uses.
Gray speck disease or just gray speck generates a lot of hits, and they too say it's a disease in oats caused by a manganese deficiency. The terms are not interchangeable in English as is Doerrfleckenkrankheit in German.
Teresa Reinhardt United States Meets criteria Works in field Native speaker of: German, English PRO pts in category: 23
Notes to answerer
Asker: Thank you. The context related to oats. Thank you everyone for your help.
1 day7 hrs confidence:
gray speck, early blight
Explanation: Very important to know what crop you're talking about, as Cetacea says. It seems that German uses Dörrfleckenkrankheit for two entirely different diseases: gray speck in oats is caused by a manganese deficiency, and early blight in tomatoes (and potatoes) is caused by the fungal pathogen Alternaria solani (I'm familiar with that one, as I lived and worked in a vegetable production area much of my life). The two web sites I gave you illustrate both German uses.
Gray speck disease or just gray speck generates a lot of hits, and they too say it's a disease in oats caused by a manganese deficiency. The terms are not interchangeable in English as is Doerrfleckenkrankheit in German.
The translation workplace 
peer agreement (net): +2
