Ok. I have 3 ILGM incredible bulks. I flipped them on Dec 8. That puts them in week 6. I been focused on fungus gnats. I think I won that battle. I don’t think the buds are bulky enough and I don’t like the yellow leaves. It was suggested on this forum to flush them last week. Anyway I finally got around to it today with one plant. What I did was make 5 gallons (my well is hard) of well water that I tested to have a PH of 6.7, PPM of 134 and EC of 282.
So I ran 2.5 gallons through. I tested the runoff. PH of 5.8, PPM of 796 and EC of 1748. I said “oh shit, too high”. So I ran another 2.5 gallons through. Tested again. PH was 6.1, PPM was 323 and EC 736, although an hour later it was 685. Then I set the pot in a tray. I came back in after walking the dog and there was water in the tray. PH was 6.3, PPM was 353 and EC was 751. I’m thinking I need to run another 2.5 gallons through and then let it dry out some before I feed it again. Also flush the other two the same way. The soil is crappy. 5 gallon pots. Half is old miracle grow and half not old enough compost. I inherited these in veg. Fungus gnats galore. I got them finally gone I think, but that’s another story. I was using the GH medium weekly formula in the attached chart. I diluted it a little. What do the experts say?
Yellowing leaves will happen as it goes through finishing stages so I believe that’s ok. I grow hydroponic so I don’t check ppm only ph and flush last week then harvest. Sorry I’m no help but I just wanted to say the the flowers look great. I had the fungus gnats a couple years ago using happy frog soil. I got lady bugs from my hydroponic store and that took care of the pest. Good luck
I’m no expert but you are going to have to flush the MG nutes out before it will stabilize. If it were me, I’d mix lots of nutrients at 800-900 ppm and 6.5 ph and slowly pour a few gallons thru, let it sit ten minutes and pour more through. It may takes 15-20 gallons if they have buildup in your soil. Flush them until your runoff numbers are very close to your feed numbers, that will completely reset your media PPMs and PH to near perfect. Watch your runoff numbers and adjust your next feed based on your last runoff numbers. If ppm/ec starts climbing again, give them plain ph’d water for one watering and recheck runoff. The reset should get you to the finish line.
The friend who gave me these used MGrow that he had used in a previous grow. Hopefully not much left.
Mosquito bits soaked overnight and used to water them will kill knats and larvae!
Another vote for mosquito bits. Super easy to use and super effective.
I tried that and it helped a little. What finally got them was diatomaceous earth on top and underneath the pot between the pot and the tray. I also dried it out a couple times. A couple times I also used a quart of hydrogen peroxide and added water to make a gallon. I divided the gallon among the three plants. I did this twice and put spoonfuls of diatomaceous earth until the entire top of the soil was white. Lots of vacuuming the floor of the tent as well. Sticky traps, as well.
So if my tap water PPM is 132, I use that as the baseline and add to that number?
Correct, all PPMs count towards total feed ppm.
I flushed them all the day before yesterday. I ran 8 gallons of PH 6.7 through each. Last flush was PH 6.1 in runoff. PPM and EC were reasonable. I’ve been letting them dry out last 48 hours. Might be another day before I add something. I’m close to the finish. I’ve only got about three or four weeks left. Since the last week is just flush with water, I’m thinking it would be nice to switch to organic notes. Something I won’t have to flush again. Any suggestion is appreciated! These are today’s pictures.
