What is Happening? Help!

G

garyocampo

Active Member
Hi, am not sure what i have here. I have been pretty light in the nuts, never going above the minimal recommendation from the producer. and epsom salt between 1/4 and 1/2 tsp per gallon every couple weeks.

1 week ago, y changed from a 9-4-8 veg to a 4-8-9 flower nut (1ml/L), with only water between. The last veg i used 2ml/L, but i have been using 1ml/L most of the time.
2 days after i change to flower nut, i start to notice some yellowing with brown spots in fan leaves, in 2 northern light autos, and one start to lose some green to lime and some brown corners and spots in some of the lime leaves. so i figured it was some N deficiency, maybe they weren't ready to switch nut, so i wait to the next watering (yesterday), and i used 2ml/L of veg, and only in case 1ml/L of a root stimulant with micro (boron, zinc, etc) and a 1/2 tsp per gallon of epsom salt.

today i wake up, and they got real bad... what was something here and there now is everywhere.
i took some pics. Any idea? could be an excess? i have been pretty mild though.
im reposting here from "Marijuana Plant Problems", sorry if it is not ok, but i'm a little desperate.

 
Cubes15128

Cubes15128

Well-Known Member
Looks like a super bad case of fungus gnats, root rot, or bad N def. mabye a mix of all xD hopefully some other people will chime in and narrow it down
 
Organic Altruism

Organic Altruism

Well-Known Member
18 views and no help? Damn. It's hard to say exactly what the issue here is. While the plant may indeed be suffering from an N deficiency, there is a chance it could also be sulfur deficient as well. The main characteristics of sulfur deficiency is a yellowing of the entire leaf (Usually starting with older growth) with Necrosis (dead plant tissue) starting from the tips of leaves, which can be seen in most of your pictures. Go to your local hydroponic store and ask what they recommend for sulfur products (probably Epsom salts?). If you don't have a hydroponic store near you, a local greenhouse or plant shop should sell a soil acidifier from Espoma (every garden center carries this brand) which is sulfur based. Be careful adding sulfur to your soil as this will drop your pH, which can also hurt your plant. Unfortunately, sulfur is not something you can foliar feed with.

After reading Cubes15128's post, the damage does look like something a fungus gnat or root rot can do. Have you noticed anything flying around in there? I also noticed leaf droopage in thepics the second time around. Are you on a strict watering schedule or do you do the finger test and water when dry?
 
chemphlegm

chemphlegm

Well-Known Member
wise to choose a quality nutrient system and follow the directions.
unless you're on some kind of a molasses miracle grow budget skip the epsom salts
for best results.
you've toasted these plants with over love and over feed and over watering
and its not worth one more hour of light expense to continue in flower. they will not amount to anything tasty now.
feel a dry pot of dirt, now add 1/4th the dirt volume of water to the pot. feel the weight again. do not add liquid to the pot again until it feels lights again, right before the plant wilts. feed according to the directions on any quality system and success is near guaranteed when in a controlled space. use organic feed and skip all the crap and ph worries if you wish. organicare is the best there is that I've found. I use it like religion
 
Weouthere

Weouthere

Well-Known Member
Looks like fungus gnats, have you noticed any lil fuckers in the dirt or flying around? I had em real bad after overwatering ONCE and a dusting of diatomaceous earth fixed the issue in a few days.
 
G

garyocampo

Active Member
yeah, it looks like fungus gnat, but i have 3 plants in the grow and only these two have this problem.
is normal to have a partial attack?
 
Jypsy Dog

Jypsy Dog

Well-Known Member
chemphlegm said:
wise to choose a quality nutrient system and follow the directions.
unless you're on some kind of a molasses miracle grow budget skip the epsom salts
for best results.
you've toasted these plants with over love and over feed and over watering
and its not worth one more hour of light expense to continue in flower. they will not amount to anything tasty now.
feel a dry pot of dirt, now add 1/4th the dirt volume of water to the pot. feel the weight again. do not add liquid to the pot again until it feels lights again, right before the plant wilts. feed according to the directions on any quality system and success is near guaranteed when in a controlled space. use organic feed and skip all the crap and ph worries if you wish. organicare is the best there is that I've found. I use it like religion
Click to expand...
"Treat E'm Like Step Children." Only what they need!
 
chemphlegm

chemphlegm

Well-Known Member
garyocampo said:
i have mantain the ph between 6.2 and 6.8, and i only water when at least the first inch is dry, about 3 to 5 days.
Click to expand...
this is improper watering. the first 2 inches of dirt mean nothing. the roots may be saturated yet you still add water and food, when saturated they stop up taking. when that happens and you keep adding water they rot. yes it is a deficiency, of course, your plants are no longer functioning, like if you had a bullet in your neck, you would be dying of a blood deficiency, or a bullet wound? either way RIP
check out rosenthal, cervantes, both are free awesome grow bibles with every bit of this covered. its not invented, already been written, no tricks, no guesswork.
 
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