What's up newgrow15 ! Not sure about your spots, otherwise she looks great, is the plant outside, u see any bugs? and are you doing any type of pest management or prevention?
check on the underside of the leaves with a loup for bugs or eggs, i always feed veg nutes till the end of week 3 until the stretch is over as their still using a lot of N, what are you ph ing at
looks like your soil is on the acidic side, if its not bugs could be MG def
most people use dolamite lime sprinkled on the soil, the sooner the better i would say
1 of my plants has the same problem, started middle fans, now top ones, thinking its mag, leaves are covered in purple blotches and rust spots like yours, let me know if your leaf tips on the affected leaves curl up.Ok I used some dolamite lime so hopefully that will do it. I did just go check them out and used a microscope for under the leaves and saw no bugs just those rusty looking/brownish spots. It's only one out of the 4.(for now) fingers crossed. Ph probe read 6.6. Fed last night so maybe they were hungry
Looks like start of calcium and sulfur deficiency too, similiar too the way my auto started going down hill, got too 54 days without feeding, just ph tap water at 105 ppm and than this happened too my plant 12 days or so in flower, i just fed for the 1st time using gh 3 part, lucas formula with 0.5 ml calmag, all up 240 ppm. My other auto's healthy just one fat hungry oneOk I used some dolamite lime so hopefully that will do it. I did just go check them out and used a microscope for under the leaves and saw no bugs just those rusty looking/brownish spots. It's only one out of the 4.(for now) fingers crossed. Ph probe read 6.6. Fed last night so maybe they were hungry
i second. calcium.Looks like start of calcium
newgrow, what is the temp in the grow space? are you seeing a max temp over 80 degrees F for any long length of time?