I have found a few of these in my indoor tent. My medium is a blend of potting soil, steer manure blood meal, vermiculute and perlite, all procured from new, sealed bags. My plants are suffering from spotting on the leaves that eventually turn brown and crispy. I first thought it to be a nutrient issue as this is only my 2nd grow and this time I am trying out Fox Farm’s Grow Big and Big Bloom, in addition to the Masterblend products that worked so well for me last grow. I diligently keep my ph between 6.3 & 6.7. I initially had trouble keeping the temp down in the tent but I’ve since dialed it in due to the addition of 2 inline fans, one that pumps fresh cool Montana air in and another sending the carbon-scrubbed hot air out the chimney. I run 2, 400w HPS in the tent which is strictly for flowering. My veg room is 1 1000w MH and so far these critters haven’t managed to infiltrate that room.
I’ve tried organic soaps as I’m afraid to use anything harsher since I’m about 45 days into flowering. I just purchased a cheesy microscope and this is what I found.(upload://5aSC5AEMG3m3cXrFT90U1tPEZem.jpg)
Strain; Animal Cookies & OG Lemon Kush
Age from Sprout: 61 days
How often do you water and how do you determine when to do so? Approx 1qt every other day, according to a soil moisture tester.
PH of water: 6.3-6.7
What is strength of nutrient mix? ?
Indoor or Outdoor: 5×5×8 flowering tent
Light system, size and height from plants: Veg - one 1000w MH approx 20" above in cool tube. Flower-Two 400w HPS approx 16" above scrog.
Temps; Day, Night: 66-85’
Humidity; Day, Night:16-45
Ventilation system; Yes, No, Size: intake 6", 375cfm outtake 8", 425 cfm w/carbon scrubber.
AC, Humidifier, De-humidifier: None
Co2; Yes, No: No
ps- Sorry. This somehow posted before I was finished. I also included pics of the damaged leaves.