Added yellow sticky fly traps to all cubes as a preventative measure to avoid infestation of fungus gnats. So far none have been spotted.
Defoliated and did a little more LST to all the plants to open up the center and give more light to lower shoots.
Blue Dream 3 and Chemdawg 3 started showing some discoloration on the leaves (yellowing around the veins) and also the leaf tips curling down.
Did some research and came up with this...
Possible diagnosis:
- Yellowing around leaf veins could be a sign of Magnesium or Iron deficiency
- Leaf tip curling down could be a sign of Nitrogen Toxicity.
- Both could be caused by improper ph balance in water
Possible solutions:
- Applied Botanicare CalMag+ as a foliar feed and added some to the reservoir. CalMag+ contains Calcium, Magnesium and Iron.
- Diluted nutrients in reservoir to lower amount of nitrogen being fed to plants. Was feeding them at 1300ppm, lowered it to 1050ppm
- Tested runoff and saw it was coming out at 5.4pH so I increased the pH in the reservoir to 6.0. Now the runnoff is testing at 5.7pH, meaning that my rootzone is in the optimal range of 5.5-5.8
Well wait and see how the plants react to these slight tweaks. Hopefully we start to see a nice healthy even green again.
Nice looking tent man. Just a helpful word of advice, When we are dealing with the flowering stage of cannabis temperature can play a big role in terms of how your buds develop. By this I mean through lots of trial and error we have discovered when the tops of the plants are getting temperatures in excess of 82 degrees they will form big monster buds. The only issue is they will be very airy and prone to fox tail. The first 4 to 6 weeks depending on strain of the bud production is the development of the buds themselves. At this stage I personally find it best to run the temps as close to 82 as possible to get some nice big formations. Then as your plants begin to switch from bud formation to filling the buds themselves out slowly dropping the temps down to 77 with lights on and your nighttime temps at least 10 degrees less, they will dense up really hard and you will get the best of both worlds. Crops grown in flower the hole way through in the mid to high 70's will have great looking dense buds but the size can suffer ever so slightly. Keep up the good work man! Also this method will help increase the amount of cake your colas are producing. Post week 4 of flower more than 10 degree temperature variations between day and night will instead of causing your plants to stretch as they would in early flower or in veg, The energy will instead go to signaling the plants to cake up and produce more resin to make as much pollen as possible stick to the buds themselves for reproduction. It is taking advantage of the ability to signal the plant to do what it genetically wants to do to reproduce as much as possible and that is get sticky! sending the plants signals that make it think its life cycle is nearing the end and to do what its gotta do to reproduce. Whether that be make big buds to produce more seed, making more resin to attract more pollen to stick to the buds,etc. All of this can be triggered with Low-stress training and the less stress your plants receive prior to beginning LST, The more responsive they will be to it. You want them like spoiled supermodels up until the moment of LST begins lol. Sorry for the length of this post! I can talk cannabis all day.
Whole lotta bud there π₯¦π₯¦π₯¦π₯¦π₯¦π₯¦π₯¦π₯¦π₯¦π₯¦π₯¦π₯¦π₯¦π₯¦π₯¦π₯¦π₯¦π₯¦π₯¦π₯¦π₯¦π₯¦π₯¦π₯¦π₯¦π₯¦π₯¦π₯¦π₯¦π₯¦π₯¦π₯¦π₯¦π₯¦π₯¦π₯¦ Very nice π