C Deficiency or Bacteria Infection?

[Cruzin]

http://icmag.com/ic/showthread.php?t=131373&highlight="bacteria+infection"

I was positive i had a C deficiency until i read the thread above. The attached pics are a good example of the issue. One of the leaves looks wilty because i pulled it last night. This problem is happening from bottom up on the plants.


How long has this problem been going on? 10 days
What STRAIN are you growing? Pre-98 BK
What was the establishing technique? (seed or clone?) Clone
What is the age of your plants? Day 50 days from clone
How long have they been in the soil mixture they are in now? 7 weeks
How Tall are the plants? 30-36 inches
What PHASE (seedling, vegetative or flower) are the plants in? Flowering 22 days
What Technique are you using? (SOG, SCROG etc) Sorta SOG
What size pots are you using? 3 gal
What substrate/medium are you using? FFOF nothing added
What Nutrient's are you using? House and Garden Soil A&B
How much of each nutrient are you using with how much water? I water 2-3 liters every two days on a moderate feeding schedule.
What is the pH of the "RUN-OFF"? 6.2 ( a little low i know)
PPM? 1250 runoff
What method of pH test was administered? Using Strips? pH pen? Hanna Combo
How often are you watering? This plant gets watered every 2-3 days as needed
When was your last feeding and how often are you feeding? Feeding almost every watering with one flush per two weeks.
What size bulb are you using? 1k full spec
What is the distance to the canopy?15-20 inch
What is your RH Factor? (Relative Humidity)approx. 60
What is the canopy temperature? 73-78f
What is the Day/Night Temp? Lights on about 75 avg, off 65f
What is the current Air Flow? a few general fans for air flow
Tell us about your ventilation, intake exhaust and when its running and not running ?The ventilation, exhaust is fine. This is not related to that.
Is the fan blowing directly at plants? A little
Is the grow substrate constantly wet or moist? No
Is your water HARD or SOFT? RO
Has plant been recently pruned, cloned or pinched?Topped
Have any pest chemicals been used? If so what and when? Floramite 2weeks ago
Are plant's infected with pest's? Not any more.

 

[Cruzin]

bump

 

[relief]

It appears to be a Botrytis leaf blight due to an excess in moisture on the leaves and in the environment.

See how Botrytis cinerea affects the tops and bottoms of the leaves unlike Cercospora leaf blight. It also causes the leaves to crinkle and distort.

You need to spray the entire plant with a fungicide and remove infected leaves as it will spread. Make sure you spray your entire grow area or it will spread that way as well. Make sure you increase ventilation and dont forget to spray the tops and undersides of your leaves, spray stems as well... botrytis like stems and once it gets into the stems it's an uphill battle. It attacks the leaves first (more vulnerable) and after it's weakened the plant from attacking leaves, it'll be more successful attacking the stems. It's also a main fungal infection of cannabis flowers (bud rot).

 

[Cruzin]

Blamo that is exactly it. I have looked and looked at pics all over and that is a perfect example of the end result to the damage. I knew it looked too much like a bacterial problem.
I on the other hand do have a slight calcium deficiency. My House and Garden A and B with RO water just doesnt give enough C.

My problem in a snap shot has to do with High Humidity. My humidity has been over 55% even a few days with 60+...i know, eeek, in tandem with excessive foliar. Yesterday i went on my gut of a bacterial type problem and sprayed down the garden with Serenade. Im going to keep the humidity at 50% or lower, hit them again in two days with Foliar A & B to inoculate the problem for the last month of flower. If you all havent used this product, its pretty amazing. Not sure if there is a comparable. But this winter i had a decent PM issue and it pretty much saved my ass. The idea is you knock it back with the mold/PM solution, give it a few days then inoculate the plants. The inoculation is supposed to last 21 days, but it only lasted about 16 for me last time.

Thank you brother for the kind response time, now i can handle this, live it learn it and hopefully not do it again.

 

[Cruzin]

Ok an update on battling this beast. The Folar A & B apparently does nothing for this problem. The seranade knocked it back for a few days (like 5) the problem picked back up yesterday.

I have now moved to a new strategy based on my research on IC Mag backed up by the recs of my hydro shop guy. So now im onto Neem oil with SM-90 and a compost tea for the soil. They were confident this would knock it out. Will keep the thread updated.

 

[etinarcadiaego]

Any updates mate? Interested in how this turns out for ya