Interesting situation, New York City Diesel in three gallon container used for propogation purposes. Cuttings were taken from this mother plant one week ago at which time she started to develop these odd brown marks on her fan leaves. The brown marks only appear on the established fan leaves and not on new growth. The clones taken from this mother have shown no signs of browning. Each of these fan leaves also curls. Current room statistics are 85 F, 26% H (it's winter no way to raise it, yes I do have a humidfier). Plenty of CFM room changes airflow over three times every minute. This plant is three feet away from the CO2 generator and the spots do remind me of a problem I saw when someone put a plant next to an ion generator but since they two are unrelated I don't think theres a connection. After research I believe that since the plants are 3 ft tall in a 3 gallon container that it could be a MG deficiency, I have treated with cal mag for the last two days and have not seen any additional problems from the new growth, however, it's only when the fan leaves become established that the problem presents itself....... any thoughts grow masters of the world?
twilight12 Reviewed by twilight12 on . Brown spots, potential MG deficiency.... Your thoughts are requested!! Interesting situation, New York City Diesel in three gallon container used for propogation purposes. Cuttings were taken from this mother plant one week ago at which time she started to develop these odd brown marks on her fan leaves. The brown marks only appear on the established fan leaves and not on new growth. The clones taken from this mother have shown no signs of browning. Each of these fan leaves also curls. Current room statistics are 85 F, 26% H (it's winter no way to raise it, Rating: 5