So here are the pics, all info will be in following post.
Issue Identification Please: Random necrosis, burnt tips etc.....
- Thread starter olderthandirt
- Start date
Soil Grow
First timer (cannabis)
Your Equipment:
Outdoors in 5 gal fabric grow bags
Your medium:
DTE Pro-Organic Mix, 6 gal or 30%
cow manure,---------- 4 gal or 20%
EWC --------------------- 5 gal or 25%
coco coir---------------- 3 gal or 15%
Pumice-------------------2 gal or 10%
Amended with:
Dolomite at ----- 2.5 tbls/gal
Gypsum at ------ 1 tbls/gal
Epsom at -------- 1 tbls/gal
DE at ------------- 2 tbls/gal
neem at ---------- 2 tbls/gal
Alfalfa meal at - 1 tbls per/gal
Kelp Meal at -----1 tbls per/gal
Bat Guano at ----1 tbls per/gal
Your nutrients and water:
Source of water. Tap, let set 24 hours or more before use
Method of checking water ph. ph pen
Method of adjusting water ph. None at this time
How often are you watering. As the pots dry, checking by weight of pot and a finger wave.
Any additives or tea's? Very basic tea of Molasses, EWC, Kelp and Fish Emulsion
Are your ph levels stable. The soil had held at 6.8 until the past 2 weeks or so. Now at 6.2
Your strain:
The plant pictured is a DF Critical Plus.
Other strains are S.A.S, DF Blue Ammnesia.
All plants in the same soil with same tea application. All plants showing the same issue.
As I post the plants are at Day 50, flowering.
Slight cupping around the 1st of July. Passed off as heat stress.
White-ish spots noted a few days later. Thought BUG! so have done a few Neem foliar applications.
Spots and browning at tips first seen on lower, older leaves. As the symptoms spread upwards I thought magnesium or phospherus Def?
Side dressed with 0-7-0 bat poo and kelp - 1 tbsp/gal along with 1 tsp Epsom per plant. Watered in with the basic tea I'm making.
Alternate water and water with 3 tbsp/gal Epsom. Symptoms continue to spread.
Arrggh, Calcium issue as well?
Side-dressed with Oyster Flour and Epsom on 7-13.
Milk and molasses foliar feed on 7-15 and weak epsom as foliar 7-16.
I have read so damn much stuff I'm on info overload.
I have studied billions and billions of pictures and charts and diagrams and I give up.
Thoughts (other than I should have hollerd sooner)
First timer (cannabis)
Your Equipment:
Outdoors in 5 gal fabric grow bags
Your medium:
DTE Pro-Organic Mix, 6 gal or 30%
cow manure,---------- 4 gal or 20%
EWC --------------------- 5 gal or 25%
coco coir---------------- 3 gal or 15%
Pumice-------------------2 gal or 10%
Amended with:
Dolomite at ----- 2.5 tbls/gal
Gypsum at ------ 1 tbls/gal
Epsom at -------- 1 tbls/gal
DE at ------------- 2 tbls/gal
neem at ---------- 2 tbls/gal
Alfalfa meal at - 1 tbls per/gal
Kelp Meal at -----1 tbls per/gal
Bat Guano at ----1 tbls per/gal
Your nutrients and water:
Source of water. Tap, let set 24 hours or more before use
Method of checking water ph. ph pen
Method of adjusting water ph. None at this time
How often are you watering. As the pots dry, checking by weight of pot and a finger wave.
Any additives or tea's? Very basic tea of Molasses, EWC, Kelp and Fish Emulsion
Are your ph levels stable. The soil had held at 6.8 until the past 2 weeks or so. Now at 6.2
Your strain:
The plant pictured is a DF Critical Plus.
Other strains are S.A.S, DF Blue Ammnesia.
All plants in the same soil with same tea application. All plants showing the same issue.
As I post the plants are at Day 50, flowering.
Slight cupping around the 1st of July. Passed off as heat stress.
White-ish spots noted a few days later. Thought BUG! so have done a few Neem foliar applications.
Spots and browning at tips first seen on lower, older leaves. As the symptoms spread upwards I thought magnesium or phospherus Def?
Side dressed with 0-7-0 bat poo and kelp - 1 tbsp/gal along with 1 tsp Epsom per plant. Watered in with the basic tea I'm making.
Alternate water and water with 3 tbsp/gal Epsom. Symptoms continue to spread.
Arrggh, Calcium issue as well?
Side-dressed with Oyster Flour and Epsom on 7-13.
Milk and molasses foliar feed on 7-15 and weak epsom as foliar 7-16.
I have read so damn much stuff I'm on info overload.
I have studied billions and billions of pictures and charts and diagrams and I give up.
Thoughts (other than I should have hollerd sooner)
Last edited:
Flip your leaves over and check for bugs, neem oil is a preventative more so than a solution, since you're already in flower if you want to get rid of bugs your going to have to buy captain jacks or green cleaner. Don't use mighty wash or anything like that in flower. I'm not much help with the amended soil but with bugs I can help, look for bugs and or black specks of droppings from them on the under side of leaves. U got a microscope?
I've kept a watch out for bugs, have as yet to spy any.
Bugs and the damage they may cause have been amongst those billions of pics and such I've been pouring over (-:
The random white spots had me thinking insect but again, no joy in finding any.
Bugs and the damage they may cause have been amongst those billions of pics and such I've been pouring over (-:
The random white spots had me thinking insect but again, no joy in finding any.
Calcium is what I thought of after realizing the drop in the soil ph.
I was on the verge of side dressing with calcium carb (Super Sweet) but thought I'd better hold off until those with experience took a look. Prolly the single most intelligent choice I've made on this matter!
I was on the verge of side dressing with calcium carb (Super Sweet) but thought I'd better hold off until those with experience took a look. Prolly the single most intelligent choice I've made on this matter!
Wish I could get clearer pics...
takiing a look....
I think you have a combination of issues. It looks at first like calcium deficiency, however it also shows burnt leaf tips, which may mean ph issues/nutrient lockout. It may be related to the soil, a very hot mix and from what I read, that wasn't cooked long enough. I wouldn't have used that mix for at least 30 days, probably 45-60 would be better. Water iy heavily, but don't flush, its a complete waste to do so especially with a soil grown auto. Ph some water to 6.8 to7.0 for watering.
Also, are those white spots? look close, are the signs of powdery mildew? or just odd spots?
Also, are those white spots? look close, are the signs of powdery mildew? or just odd spots?
Hey-o pop.
The soil cooked for a full 2 months prior to use. So with that, could the current soil ph of 6.2 be an issue in calcium and magnesium lockout?
I wondered at the burnt tips being toxicity. The browning to crispy areas are for the most part appearing somewhere within the leaf body at first, then coming out on the tips.
The white spots/blocks/areas.........
I hadn't thought of mildew. Damn but I wish I could get better pics.
Anyhoo, the white areas seem random in location and appearance. They don't rub off or smudge. Some but not all progress from white to rust to brown to crispy hole.
The soil cooked for a full 2 months prior to use. So with that, could the current soil ph of 6.2 be an issue in calcium and magnesium lockout?
I wondered at the burnt tips being toxicity. The browning to crispy areas are for the most part appearing somewhere within the leaf body at first, then coming out on the tips.
The white spots/blocks/areas.........
I hadn't thought of mildew. Damn but I wish I could get better pics.
Anyhoo, the white areas seem random in location and appearance. They don't rub off or smudge. Some but not all progress from white to rust to brown to crispy hole.
Last edited:
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