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Discussion in 'Sick Plants and Problems' started by illuminate, May 26, 2010.
4-5 weeks into flowering
Yes. (calcium def looks like, but there are no grow details to go by to be sure, other option is mites perhaps)
Check the undersides of those leaves for little tiny black moving specks, kind of like slow-moving pepper. If you see that, you have spider mites.
The other option, Calcium def., is most likely due to your pH being less than 6.5. What are your soil and water pH levels? Also what is your water source (bottled, tap, etc.)?
I only have a ph tester for water... it's tap water and it's ph is high, 7.5ish... is rain water better?
I gotta get my ass out and get a soil tester lol
i recently got 15-30-15 ferts less than a week ago
Next time you water, use pH 6.5-6.8 water. Whatever source you use is fine as long as you measure and correct the pH before you give it to them.
You can test the runoff from your soil when you water your plant to get a rough estimate of your soil pH. Don't go and buy a soil tester unless you are going to spend the big money to get a good one. The cheap soil testers do not read accurately enough to use.
Next time you water, let some runoff drain out of the holes in the bottom of your pot, and collect some of this runoff and test it. You should let some run out first, then get your sample to test. If you have to add a little extra water to get enough to come out the bottom that is OK.
If your runoff tests low, like below 6.5, you'll need to flush your plants to remove excess acid salts that have built up.
Also, did you check to make sure you don't have spider mites?