Plant Problem

[slowlysinking]

Hi

 

Im having trouble dagnosing what is going on with this plant.

 

Indoor
Growing Medium: Coco
Temperature/Humidity Levels: 24 degrees
Air Flow/Fans etc.: Yes
Lighting Type (CFL/HPS/MH etc.): HPS
Growth Stage: Flowering
Cannabis Strain: Jack herer cross

 

Thank you in advance.

[MrCompletion]

First though is phosphorus deficiency. Is it all over the plant?

[Sunsetcoastreefer]

From another forum

 

rust, how many of you have had this and been beaten by it? lots i bet!!!
first, rust is a fungi. it is opportunist. it preys on unwell plants. if something is a miss, rust is a sign. rust has been identified to have 7,000 species. it attacks crops of every description. but we're only interested in one variety arn't we?
if rust is present early in a grow, you have problems as it's an indicator something in your room is a miss. usually ventilation. go through your system and double check things are in place and working properly.
rust is an air borne fungi. if given the opportunity, it WILL take hold. it usually does during flower as this is when the plants immune system is at its weakest as its energies are concentrating on re-production, not survival.
depending on what part of the grow you get it, you can cure/minimize it with either chemical or natural remedies. 
it enters the leaf via the stomata and then it's off and running.
fungacides used are generally copper based and include; thriram, manzecob, maneb or zineb at 10 day intervills.
organic; 
baking soda, 1 tea spoon/ quart of water. spray on.
copper sulphate, read lables.
fungacidal soap sprays;
garlic sprays, 1/2 cup minced garlic, 1 quart of water. let sit 24hrs, strain, spray.
sulphur, one of the best natural sprays. it is low in toxicity.
micro kill, a citric based killer. i use this with great success

[The Stoned Jester]

Sounds like that rust for sure.

I always keep this handy too.

 

Edited March 7, 2015 by The Stoned Jester

[slowlysinking]

Sorry for the long delay. It was a problem of rust and we managed to treat it by following the solutions above. We also invested in a store bought remedy druing treatment but the home verisons were better - baking soda, 1 tea spoon/ quart of water. spray on.

 

The rooms airflow issues were also fixed

 

Thank you again for helping!

[slowlysinking]

Jester is there a mugh higher res image of the one you have put up?

[The Stoned Jester]

Not that I know of, I already scoured Google images looking for the best one.

[Britb]

Sorry for the long delay. It was a problem of rust and we managed to treat it by following the solutions above. We also invested in a store bought remedy druing treatment but the home verisons were better - baking soda, 1 tea spoon/ quart of water. spray on.

 

The rooms airflow issues were also fixed

 

Thank you again for helping!

My cousin used baking soda and tea also for rust. Well ventilated grow room the optimal temperature tends to be between 24-29 °C as temperature can have a large effect on how your cannabis plants grow. Remember that high humidity can help young plants grow faster, while low humidity is crucial to prevent mold during the flowering/budding stage.

 

When it comes to controlling humidity indoors, you may need to use a humidifier and/or a dehumidifier to keep the humidity in the optimal range. A humidifier adds moisture to the air while a dehumidifier takes moisture out.