Double Kindness
Member
Your ph is too high. Lower it to 5.8-6.0 drip clean and root excelerator will help with the cal mag problem, from salt buildup and lockout. That has been the experience in my garden.
Need help diagnosing leaves...(pics)
- Thread starter joe fresh
- Start date
I notice that the affected leaves are mainly fan leaves. I don't see any leaf tip burn. If ph is good and you have a good amount of calmag being supplemented then I am going to say they look hungry. The fan leaves look like they are stripped of nitrogen and are dying back as they are being cannibalized for nutrients.
They are supposed to yellow as you get farther into flower.
Buds look good, and other leaves look good, so I would not worry about a bit of yellowing in some of the fans. Could be a bit of a lock out. You might try flushing to get rid of salt build up. They don't look bad, though.
Buds look good, and other leaves look good, so I would not worry about a bit of yellowing in some of the fans. Could be a bit of a lock out. You might try flushing to get rid of salt build up. They don't look bad, though.
Check your roots for root aphids. Not easy to see. Need a magnifier. There's an epidemic of these currently, and normal insecticides won't kill them. I just went through this whole "yellowing" thing, and it was root aphids. Not saying that's what you have, but best to check.
With only 3 weeks left, I would expect some yellowing, but you know your strain.
With only 3 weeks left, I would expect some yellowing, but you know your strain.
OrganicMonkey
Member
Looks like N def in the later pictures, some people don't like yellowing in flower so hard to say that they are 'supposed' to yellow. The last picture of your first four, looks like over watering. Then in the middle of the first page, it does look like a cal/mag def. To much water will dilute nutrients, it's possible the plants would prefer feedings every watering. Plants absorb nutrients at a constant rate with water, so giving them a roller coaster feed schedule might not be the best. That first picture, the fourth in your first post. That one looks familiar, I'd say over watering but then again since I've added 3ml of dissolved lime into my feeding I haven't seen it.
I would argue that, if properly flushed, plants are supposed to yellow late in flower, as the plant uses up the last nutrients in the leaves.
If they are still all green at harvest, there is too much nitrogen present, which diminishes smoke quality. At least in coco or hydro. Perhaps organic growers have green till the end.
