Hello experts!
This is my first grow. I’ve been able to spot WPM and treat it, first with Neem oil (didn’t really work completely), then discovered 40/60 milk/water spray paired with increased airflow and ventilation (Added HEPA filtration system and 2 additional oscillating fans). I also reduced humidity to 35-45% for a few days to make sure the WPM will not come back. I’m amazed by the effectiveness of milk/water spray!!
My current issue is probably low soil PH (maybe N toxicity based on google). I have been feeding the plants every 2-3 days once the soil is dry (based on soil meter reaching dry/moist).
I have a homemade organic soil mixture which should be between 5.4 - 6.3 Ph (I used the ph ranges for each product then calculated a weighted average ph based on the soil mixture ratio (See calculations in photo below)
SUPPORT TICKET DETAILS:
-What strain, Seed bank, or bag seed (photo or auto)
Train Wreck, Rocketseeds / Crop King Seeds, auto
-Age of plants
21 days
-Method: Soil w/salt, Organic soil, Hydroponics, Aquaponics, KNF
33% peat moss / 33% Foxfarm Ocean Forest soil / 22% Perlite / 11% Vermiculture / Mycorrhizal Inoculant by DYNOMYCO
-Vessels: Type and capacity of container (fabric, plastic, etc)
12L Smart pot
-PH and TDS of Water, Solution, runoff (if Applicable)
Filtered well water, 6.8 PH in / 5.5 - 5.9 PH in runoff
-PPM/TDS or EC of nutrient solution if applicable
Filtered water - 345ppm
-Method used to measure PH and TDS
PH meter
-Indoor or Outdoor if indoor, size of grow space
Indoor 3x3x6
-Light system List brand and wattage/spectrum
300 watt / Full spectrum Mars Hydro LED (2022 model)
-Actual wattage draw of lights
2.85 µmol/J, High-intensity spectrum with enhanced red(3200-4200K,4800-5000k, 650-665nm)
-Current Light Schedule
20/4
-Temps; Day, Night
Day - 75 - 82 F (78 avg) / Night - 71 - 75F (72 avg)
-Humidity; Day, Night
Day: 40% - 65% (50 - 55% avg) | Night: 50% - 65% (55 - 60% avg)
-Ventilation system; Yes, No, Size
Yes, 4 inch inline duct fan 205 CFM / 2 - 6in fans / 1 - 12in fan / HEPA filtration system
-AC, Humidifier, De-humidifier,
No AC, Yes Humidifier, no Dehumidifier
-Co2; Yes, No
No Co2
The smaller plant (left) has a ph runoff of 5.5 ph. This plant also suffered the most from the WPM (i’m guessing lower soil ph reduced the plants immune system).
The bigger plant (right) has a ph runoff of 5.9 ph. This plant also sprouted twice as big as the smaller plant using paper towel method).
Thanks for your support!!