“During week 5, we had a hose pop off the ebb and flow controller.  Fortunately, I caught it before any of the plants died, and the hose pushed off the controller and fell back into the reservoir.”

growing from good to great
Photo from week 5

miraculous recovery

week 7 photo 

We are now beginning week 7(day 43 of flower), and there have been some unexpected occurrences. During week 5, we had a hose pop off the ebb and flow controller.  Fortunately, I caught it before any of the plants died, and the hose pushed off the controller and fell back into the reservoir. 

I could have had a mess to clean up and a bunch of dead plants.  The Jet Fuel/G7 crosses continued their stretch into the 5th week.  I have never experienced anything like this.  It roughly tripled during stretch.  I had to keep cutting it back because it grew up to the light and the limits of the cabinet.  This did not make the plant happy.

Great Grass

Great Grass Crystal Garden Week 7

A growing problem

I had to keep cutting it back because it grew up to the light and the limits of the cabinet…

On top of this, the 2 Jet Fuel/G7 crosses experienced the water deprivation within a couple days after I gave them one last cutback.  The combination of this and the final cutback sent one of the plants into shock.  It has now recovered, but it lost about half of its leaves.  The second one was impacted, but not nearly as much.  The two Fast Cherry Pie phenos were impacted a bit, but they were so far into flower and I caught the hose problem early enough that they were minimally impacted. 

A few days after the water incident, I discovered that I had a spider mite infestation. I cranked up the CO2 in the cabinet overnight to over 10,000 ppm (See warning below) for the dark cycle, and by the next time the light turned on, the spider mites were dead.  I will need to repeat the process in a few days to kill any new hatchlings, but for now, all is good again.  Fast Cherry Pie are so far into flower that they are relatively unaffected.  Pest control is an important part of any grow, and it is important to be proactive.  I usually make sure to make a foliar spray of SM-90, and during veg, I spray the entire plant lightly twice a week.  The entire cycle, I spray this SM-90 foliar spray on the top layer of hydroton in my buckets.

This protective layer discourages various root bugs, just like dousing the leaves helps to prevent future problems with molds, fungi, or bugs.  Once flowers appear, I cease all pesticide activity on the plants, save the occasional use of Green Cure to spot treat any powdery mildew that may arise towards the end of the flower cycle.  The nice think about running CO2 in a system that is relatively sealed is that CO2 if one of the best pesticide free ways to combat bugs, but YOU MUST EXERCISE EXTREME CAUTION.  WARNING: CO2 at the levels that kill bugs are also not healthy for humans and can result in injury or death if proper precautions are not taken.  Remember that this is only to be done in a sealed room/cabinet that can be ventilated to outside.  If at any point you begin to feel lightheaded, get outside.  I give the grow room 12 hours of elevated CO2 levels with the ventilation turned off while the lights are out.  This process is repeated a few days later to make sure to get any eggs that may have hatched after the last CO2 treatment.  In spite of everything, the Fast Cherry Pie is looking great.  The Jet Fuel/G7, despite being an Indica dominant hybrid with tight internodal spacing, is not very well suited for a grow cabinet.  In the future, I would choose a different pheno, especially with the Fast Cherry Pie, which has proven to be a fast grower. 

An update from week 8:

We had all but written off the possibility of a full recovery of the Jet Fuel/G7. The loss of irrigation for 12 hours right after a massive trim job at a critical stage of growth can be devastating. 

It appears that dosing the plants with Rhiza Nova Great Grass has given all four plants more than enough vigor to bounce back. This is going to be a massive harvest. 

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