Ive been having a problem that I cant seem to identify if someone could help out. This is my first grow, I had some Ph problems in the beginning of the grow which I rectified once I ordered a PH reader. Aside from nutrient burn ( which I flushed after) those have been my only problems. I cant figure out what these grey spots are on the tips of the leaves. You can see them in the picture.
Anyone have any suggestions? Much appreciated!
Im using bergmans Nutrients
Cal mag
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Lower leaves on cannabis tend to yellow and fall off as the plant matures. I wouldn’t worry about it so long as the top half of the plant remains healthy.
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NA (non applicable)
- What strain, Seed bank, or bag seed
- Method: Soil w/salt, Organic soil, Hydroponics, Aquaponics, KNF
- Vessels: Pots, Grow beds, Buckets, Troths
- PH of Water, Solution, runoff (if Applicable)
- PPM/TDS or EC of nutrient solution if applicable
- Indoor or Outdoor
- Light system
- Temps; Day, Night
- Humidity; Day, Night
- Ventilation system; Yes, No, Size
- AC, Humidifier, De-humidifier,
- Co2; Yes, No
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That plant is to early to be loseing leaves give it a good feeding and see how it reacts it looks like it needs good watering and feeding but check your run off frist @matty777
Ur in early flower ur plant still needs nitrogen for the stretch i would say u have a little bit of nitrogen def and it wouldnt hurt to give a some cal/mag aswell .what nutrients are u using is it bottled nutes or organic nutrients
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- White widow Auto-flower from ILGM
nutrients bergmans nutrients (just switched to flower) - Method: fox farm soil
- Vessels: grow bag
- PH of Water, Solution, runoff (if Applicable)- 500-1000ppm feeding solution
- PPM/TDS or EC of nutrient solution if applicable
- Indoor
- Light system 300 watt samsung led from mars hydro
- Temps 25-30degrees celcius
- Humidity; Day, Night
- Ventilation system; Yes, carbon filter in grow tent
- AC, Humidifier na
- Co2; Yes, exale grow bag
I fed flower formula yesterday and the spots are still at the end of the leaves and are even forming on the new leaves. grey spots at the end of the leaves that are making them die. I dont know what it is can anyone help? Much appreciated!
Uploading: IMG-3710.jpg…
i gave her nutes yesterday and it didnt seem to help. The grey spots are forming on new leaves. What ppm should i be using at this point?
The damaged leafs will not repair thereself you need to watch the new growth for progress. Also I see leafs clawing an turning down signs of not being happy. I would water to run off and check PPM and also PH And my adjustments accordingly. 
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the symptoms closely match boron deficiencies. Anybody know how to treat?
I tested the run off water and found my ph was low reading at 5.77. I flushed the soil with distilled water with a ph of 6.5 to bring the ph up. I also put some ph up in a spray bottle and sprayed the top of the soil. Very small amount.
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Im new at this, but they look sad to me . What is your run off ppms
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How big is the pot the plant is in right now?? Is it fox farm happy frog or ocean Forrest when u say u used PhD distilled water to 6 5 how?? Did u add something to the water to hold onto pH?? If I was u I’d get some calmag. It seems to me u need a super dose of calmag to get on track for start of I’ve never used it yet. I’d get calmag and a gallon or 2 of distilled if 1 gallon add 5ml calmag to it shake it up good. pH to 6.5 to 6.8 area then soak the pot put it in a tub and let it get a bunch of runoff water slow somu saturate all the soil. Catch some of the runoff in a bowl after a bit of draining and see what the pH and ppm of the run off is def being in soil I would add some calmag to every watering. 2 to 5ml each watering per gallon.