Hello!

I am currently growing LA Conf and master-bubba. Im having a curl issue with the LA. Here is a few examples:

http://i52.tinypic.com/2v3h28o.jpg

&

http://i54.tinypic.com/nmjkhi.jpg

The master-bubba does not exhibit the curl. Example:

http://i51.tinypic.com/2arb75.jpg

There is a overall curl on the LA (with one or two plants out of 20 as a exception). I thought perhaps it was heat/lighting causing it as that has caused curl for me in the past. However after moving the lights away and cycling them with good room temps (74-79 canopy temp) the curl has not straightened.

I have CO2 running at about .75 in terms of release pressure @ 12 hour cycles. I have a fan that redistributes the co2 across the 10ft long canopy. Is that too much? The room is not completely air-tight so there is some loss that occurs.

Here is my nutrient schedule:
GH 3-part at recommended flowering cycle doses
50ml diamond nector
25ml cal-mag (I use a RO)
Great White

These are about day 17 flowering cycle.

I have applied Bush Master in first week of flowering (two water/cal mag flush cycles) and then half-nutes with MOAB about day 12.

The watering schedule has been very adequate with no over-draught. I hand-water every other day, 3-gal buckets with PH around 6. The soil gets near-dry after 48 hours.

PS- The 'spots' you see are not thripes but milk residue. I gave it a try last week with a 25% milk/water mixture. Im looking for a really helpful addative to make the milk spot-stains not exist. Will baking soda help? Looking to spray weekly until about week 5-6 of bloom.

Any thoughts would be helpful.

Thanks
Sorntor Reviewed by Sorntor on . Leaf Curl problem - pictures and info included. Does too much CO2 cause curl? Hello! I am currently growing LA Conf and master-bubba. Im having a curl issue with the LA. Here is a few examples: http://i52.tinypic.com/2v3h28o.jpg & http://i54.tinypic.com/nmjkhi.jpg Rating: 5