Brown spots on old leaves growing at a dramatic speed (pics)

duconge

Member
Hi all, My plant was looking healthy two days ago, but when I went to check it this morning, I found plenty of brown spots on the older leaves. I grow in soil with a pH of about 6.5. I wait for the soil to be well dried out between watering. The plant is 3 weeks old and I did not add any nutrient to the water till now. From what I read on the net, I am not sure if my issue is a nutrient deficiency or a fungi attack. Any help would be welcome.
 

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Ilovebush

Well-Known Member
"the plant was looking healthy two days ago"....so u can pretty much narrow it down to something which changed after that time. U know the restore to an ealier date feature on windows...go back to what was previously working. Let the plant tell u when it needs feed and make sure u introduce the nutes starting at a quarter of the recommended dose. Calmag is recommended as mentioned, as it is a common problem which most nutes do not include enough of.
 

duconge

Member
Did they do this after you fed them?
I watered the plant last Sunday (without nuts), the plant was ok on Thursday and I noticed these spots today. So, no. I water the plant with a mix of 3/4 rainwater- 1/4 tapwater. The rainwater I use contains almost no minerals and has low pH (6), while the tapwater is very alkaline (pH 8). I guess I have to increase the amount of tapwater in my mix to give more Ca to the plant and yeah, time to use some nuts.
 
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