Hello folks,
I have 10+ strains and few are showing yellow colour and burnt tips, on the flowering plants i noticed sudden yellowing of the top of the plant and old leaves first (maybe i missed where it started though), on mother plants i see the yellowing starting at the bottom of the plant.
The ones showing problems are delahaze, cheese, jack herer, and critical+ (this one started showing yellow leaves sooner and shes in the smallest pot, 7liter vs 11 liters), the soil has been the same since the first transplant.
Maybe it could be something related to the age of the soil, as if they depleted certain nutrients in the soil and im not delivering enough, since some of them are flowering plants, but also some mothers are starting to have this problem. The temps are usually high, around 30ºC. I feed all strains with the same nutrients (most do great).
Soil (all mix biobizz), water every 4-6 days, 1 only water/ 1 with nutrients, nutes per liter: hesi roots during veg 2,5ml, biogrow 1-1,5ml, biobloom 1-4ml, 1 drop supervit for every 4l, flora estimulant, pk13-14 (3-4 weeks before harvest) and molasses in flower stage. Mothers just biogrow 1-1,5ml, hesi roots and supervit.
I usually fert with the minimum recomendations, let them dry (sometimes a bit too much) before next watering and let some water sit at the bottom of the pots to be reabsorbed.
PH: 6-6,5. EC:1,5-2. EC tap water: 0.2. PH tap water: 7
Temp:29-30ºC 800-1200PPM CO2 RH 50-60%
Im still trying to get rid of fungus Gnats, there are a few, they shouldnt be the problem.
Some photos:
The ones under the HPS light are the moms, the rest are flowering.
All started from seed: 2/02/2015
Started flowering: 12/03/2015
http://imgur.com/cZcMK7K,WICRDGC,jz5rX5x,EBlB22q,ZAaWXVP,tW9dIYY,VCi4tm7,X2ToIXP,9oDMQtS,GZzkzYF,VaIoX92,vjdwpGw,XToBmfC#4
I think they got better after last feed, i increased nutrient amounts. You can see the contrast in colour between fine plants and yellow plants, usually the older leaves are yellower than the new ones.
Thanks!
I have 10+ strains and few are showing yellow colour and burnt tips, on the flowering plants i noticed sudden yellowing of the top of the plant and old leaves first (maybe i missed where it started though), on mother plants i see the yellowing starting at the bottom of the plant.
The ones showing problems are delahaze, cheese, jack herer, and critical+ (this one started showing yellow leaves sooner and shes in the smallest pot, 7liter vs 11 liters), the soil has been the same since the first transplant.
Maybe it could be something related to the age of the soil, as if they depleted certain nutrients in the soil and im not delivering enough, since some of them are flowering plants, but also some mothers are starting to have this problem. The temps are usually high, around 30ºC. I feed all strains with the same nutrients (most do great).
Soil (all mix biobizz), water every 4-6 days, 1 only water/ 1 with nutrients, nutes per liter: hesi roots during veg 2,5ml, biogrow 1-1,5ml, biobloom 1-4ml, 1 drop supervit for every 4l, flora estimulant, pk13-14 (3-4 weeks before harvest) and molasses in flower stage. Mothers just biogrow 1-1,5ml, hesi roots and supervit.
I usually fert with the minimum recomendations, let them dry (sometimes a bit too much) before next watering and let some water sit at the bottom of the pots to be reabsorbed.
PH: 6-6,5. EC:1,5-2. EC tap water: 0.2. PH tap water: 7
Temp:29-30ºC 800-1200PPM CO2 RH 50-60%
Im still trying to get rid of fungus Gnats, there are a few, they shouldnt be the problem.
Some photos:
The ones under the HPS light are the moms, the rest are flowering.
All started from seed: 2/02/2015
Started flowering: 12/03/2015
http://imgur.com/cZcMK7K,WICRDGC,jz5rX5x,EBlB22q,ZAaWXVP,tW9dIYY,VCi4tm7,X2ToIXP,9oDMQtS,GZzkzYF,VaIoX92,vjdwpGw,XToBmfC#4
I think they got better after last feed, i increased nutrient amounts. You can see the contrast in colour between fine plants and yellow plants, usually the older leaves are yellower than the new ones.
Thanks!
Last edited:
