Bugs or Disease?

Hello everyone,

I took a look at my plant this morning and noticed little spots all over some of the bigger fan leaves. I looked very closely at a lot of the leaves and did not notice any bugs moving around, or any webbing anywhere. I also have another cannabis plant that touches the one with spots, and there is no visible signs that it has spread to the other plant.

What do I need to do to get it to stop spreading throughout itself? Harvest is coming up in about three weeks. I removed some of the lower leaves that looked pretty bad and I also noticed a brown spot on the stalk.

Thanks in advanced!

Welcome to RIU, and the wonderful world of cultivating the world's most misunderstood and feared medicines!!!

The only 'advice' I can give you or anyone is to read and learn and then apply what you have read and learned to your garden and you cannot fail. Anyways, remember the search tool is your friend...Lots of folks here willing to help a new farmer get up and growing. But at the end of the day your grow will be only as good as the knowledge and work you put into it.

It is always great to ask questions but do not take anyone's advice or opinions and follow blindly. Do your own research, you will be much happier knowing you have done it for yourself and by yourself. The first buzz you get from your own budz...is by far the BEST high you will ever have!

Do a search using your current question as the keyword(s) and ZOOOM!! Like Wonka's Great Glass Elevator…off you go to tons of threads answering all your questions. Read all the Newbie Central stickies and learn…

After that you are a seasoned vet. Because to soak up all that information and sift through it, is going to take time. You will likely finish your first grow by then. Viola! grow complete and education well under way.

q42blaster said:

Hello everyone,

I took a look at my plant this morning and noticed little spots all over some of the bigger fan leaves. I looked very closely at a lot of the leaves and did not notice any bugs moving around, or any webbing anywhere. I also have another cannabis plant that touches the one with spots, and there is no visible signs that it has spread to the other plant.

What do I need to do to get it to stop spreading throughout itself? Harvest is coming up in about three weeks. I removed some of the lower leaves that looked pretty bad and I also noticed a brown spot on the stalk.

Thanks in advanced!

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If I saw those spots on my gurlz I would start reading here:

http://www.growweedeasy.com/calcium-deficiency-cannabis

http://www.growweedeasy.com/nitrogen-toxicity-cannabis

http://www.growweedeasy.com/magnesium-deficiency-cannabis

Just an update:

I found another picture elsewhere that looks very similar to this. It appears to just be calcium deficiency. I was originally worried, because of how quick the spots appeared on the leaves. I was experimenting with giving it cal-mag only during its feedings a few weeks ago, but didn't realize it could take this long for the problem to have shown up. About a week ago, I started giving it cal-mag every day.

q42blaster said:

Just an update:

I found another picture elsewhere that looks very similar to this. It appears to just be calcium deficiency. I was originally worried, because of how quick the spots appeared on the leaves. I was experimenting with giving it cal-mag only during its feedings a few weeks ago, but didn't realize it could take this long for the problem to have shown up. About a week ago, I started giving it cal-mag every day.

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UUUHHH..yeah...Personally, I would not add any nutrient on a daily basis. I add a teaspoon of cal-mag to my watering schedule. That is just how I do it.

ur plant(s) are way darker than they're supposed to be...practically bordering on CLAW. What you're looking at is probably salt build up and minor burn associated with same. That's not really the problem though...the Nitrogen tox is and it will delay your harvest, leave your buds tasting awful and it also affects Trich production. In short...cut back on the N you're giving the plant and give your plant time to recover.

dannyboy602 said:

ur plant(s) are way darker than they're supposed to be...practically bordering on CLAW

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https://www.rollitup.org/t/soil-run-off-dropping-drastically-each-day.908399/

Here is another post I made, which shows my schedule for her. I was following the full-schedule for the fox farm nutes, because my ppm is so low in my soil. I cut back the amount of tigerbloom I was giving it. I will try to go even lower (quarter strength). Should I give it tigerbloom every other feeding or should I just lower it to quarter strength every feeding? I find that if I don't use full-strength big bloom (3tsp) I get more nute deficiencies.

$bkbbudz$ said:

UUUHHH..yeah...Personally, I would not add any nutrient on a daily basis. I add a teaspoon of cal-mag to my watering schedule. That is just how I do it.

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I feed every other watering and I am using RO water. I am watering these girls every day, because if I go any longer they start dropping. I was using this schedule prior to the one I linked below, but have had mixed results from people telling me to always use Cal-Mag when water and people saying only use cal-mag if there are deficiencies showing. Going with every watering seemed to cure some deficiencies, but honestly this is my first grow, so I have no idea what the hell I'm doing lol.

Day 1 -- feeding day:
3tsp big bloom
.5tsp tigerbloom
1tsp cal-mag

Day 2 -- Water day:
pure RO water


https://www.rollitup.org/t/soil-run-off-dropping-drastically-each-day.908399/ has the feeding schedule I've been following since the beginning of this month.

Ok, so if I am reading this correctly you are giving each of them a 1/2 gallon of water each day because they look under watered after 2 days and a full dosage of FF nutes every second day in FFOF soil..right?

OOOPS...you did say 1/2 strength...but is the rest correct?

$bkbbudz$ said:

Ok, so if I am reading this correctly you are giving each of them a 1/2 gallon of water each day because they look under watered after 2 days and a full dosage of FF nutes every second day in FFOF soil..right?

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Yes, I was giving them a full gallon, but the run off was too much, so I cut back to half-gallon. Even when I was giving it a full gallon each watering, if I didn't water it every day, the leaves would be badly drooping. They are in air-pots. My current feeding is based off of this nutrient schedule:

http://foxfarmfertilizer.com/images/pdf/soilenglish2015.pdf
Week 12+
3tsp Big Bloom
1tsp Tigerbloom

I am giving it (every other day).
3tsp Big Bloom
0.5tsp Tigerbloom (I cut the tigerbloom in half because of how dark the leaves were getting).
1tsp cal-mag

The ppm has a good decline day-over-day, so it seems to be soaking up the nutrients.

It usually goes from 700 after a feeding
and 400-500ppm after the watering. If I don't give it cal-mag, the ppm is around 200-300ppm just after a day.

q42blaster said:

Yes, I was giving them a full gallon, but the run off was too much, so I cut back to half-gallon. Even when I was giving it a full gallon each watering, if I didn't water it every day, the leaves would be badly drooping. They are in air-pots. My current feeding is based off of this nutrient schedule:

http://foxfarmfertilizer.com/images/pdf/soilenglish2015.pdf
Week 12+
3tsp Big Bloom
1tsp Tigerbloom

I am giving it (every other day).
3tsp Big Bloom
0.5tsp Tigerbloom (I cut the tigerbloom in half because of how dark the leaves were getting).
1tsp cal-mag

The ppm has a good decline day-over-day, so it seems to be soaking up the nutrients.

It usually goes from 700 after a feeding
and 400-500ppm after the watering. If I don't give it cal-mag, the ppm is around 200-300ppm just after a day.

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Dude, I gotta say I am stumped here. I have no earthly clue why your plant is not drowned, root rotted, burned, and wilted. Please do not misunderstand...I am NOT trying to be an asshole. But, I am thinking you are paying way to much attention to the little details and not looking at the whole picture. Your plants IMHO are suffering from being loved to death. I have NEVER seen a plant in soil needing that much water, ever. They do not require that much feeding (as I learned AGAIN recently) or that much over protecting. So all in all...I will say, I am impressed you kept them alive...good job. For your next grow, maybe you should do some more reading and learning. Again, I wish you the best of luck and I mean no malice in my comments.

$bkbbudz$ said:

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Dude, I gotta say I am stumped here. I have no earthly clue why your plant is not drowned, root rotted, burned, and wilted. Please do not misunderstand...I am NOT trying to be an asshole. But, I am thinking you are paying way to much attention to the little details and not looking at the whole picture. Your plants IMHO are suffering from being loved to death. I have NEVER seen a plant in soil needing that much water, ever. They do not require that much feeding (as I learned AGAIN recently) or that much over protecting. So all in all...I will say, I am impressed you kept them alive...good job. For your next grow, maybe you should do some more reading and learning. Again, I wish you the best of luck and I mean no malice in my comments.

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No offense taken. I have no clue either. I have been watching tons of videos and reading a lot and it's still pretty confusing to me either. I feel like the approach I took ( fox farm soil, air pots, fox farm Nutes) was a good starting point, but finding info on that same setup has been challenging. Also the difference of opinion is drastic as well. The best I've done is try to listen to the plants. I was terrified of root rot in the beginning but as other members stated that it's hard to get root rot in air pots, which I don't know if it's true, but the overall look of my plants from before to now seems much better than it used to be so I stuck with it.

Also my ppm is not in the ideal range that I have been reading (1200ppm during the stage my plant is in). I have made several adjustments during this grow and still feel like I'm understanding more, but I'm not understanding the nutrients and feedings correctly.

My ph is within a good range, 6.4ph. I know this being my first real go at it I will indoubtliy face problems, but understanding problems is a rather tricky task.

I have used FFHF soil forever. And up until my current grow I have used just the FF trios liquid and soluble. I never had any issues. Then I was forced to stop growing for 4 years. This time I am still using FFHF but with 12 different FF nutes. I made a very simple but costly mistake...I overfed the shit out my gurlz. I was following the FF soil schedule and since it says to feed twice a week and I only watered twice a week, I fed every time I watered...DUHH!! One of my gurlz suffered pretty bad as a result. My next grow I going 100% organic for the 1st time.

Anyway the point of this is...I have never used a ppm meter, I have never checked run off or EC and with the exception of my recent issues which are really human error...I have never had a problem I could not correct. You are doing a whole lot of worrying and over-compensating for an issue that IMHO is not really an issue but may be the result of your over zealousness to correct it.

Now, I understand the excitement and anticipation of a first grow,. Been there done that got the hemp t-shirt. But relax, calm down and have fun. It is a living organism and like every one else it WANTS to grow healthy.