3rd Week Flowering Little White Spots All Over the Leaves

Discussion in 'Marijuana Plant Problems' started by turbocivic6776, Jun 1, 2011.

  1.  
    turbocivic6776

    turbocivic6776 Active Member

    Can anyone help me diagnose what this problem is? These plants are 3 weeks one day into 12/12 and they are under a 1kw HPS. I feed them general Hydroponics nutes every 6 days at full strength and every 3rd day i water with plain ph balanced water. I noticed these spots about a month ago and just decided to watch them but they never seem to hurt the plant but they seem to be getting worse so i want to see what it is now. The seeds were just some bag seed that im growing to get better at growing so i can feel comfortable using the carameliscious seeds i bought. Anyway here are the pics i took today some are just of the plants. All help is appreciated.
    IMG_0618.jpg IMG_0611.jpg IMG_0610.jpg IMG_0616.jpg IMG_0617.jpg IMG_0615.jpg IMG_0614.jpg IMG_0613.jpg IMG_0612.jpg
  2.  
    Dr Gruber

    Dr Gruber Well-Known Member

    My first thought was spider mites but if youve had it for a month you would probably see webs all over it. Check the underside of leaves for mites. Other then that maybe some kind of mildew.
    Its very hard to tell from the pics..can you put up some more with the lights turned off?
  3.  
    max316420

    max316420 Well-Known Member

    I was thinking sm too but you might wanna check into powdery mildew
  4.  
    turbocivic6776

    turbocivic6776 Active Member

    Nothing on the underside of leaves and it does not wipe off or feel different just spots idk
  5.  
    turbocivic6776

    turbocivic6776 Active Member

  6.  
    max316420

    max316420 Well-Known Member

    You got a mag def...
  7.  
    turbocivic6776

    turbocivic6776 Active Member

    Also no webs ever seen on any of my plants
  8.  
    turbocivic6776

    turbocivic6776 Active Member

    Thanks is there any reason this is occuring i always seem to have deficiancys with my grows but i feed them well enough i thought could it be my nutrients i am using or do you think im just not feeding enough?
  9.  
    Dr Gruber

    Dr Gruber Well-Known Member

    They are very hard to see. They look like little specks of dirt but they move. I always take a leaf blade and touch them...if they start moving by themselves you got mites.
  10.  
    max316420

    max316420 Well-Known Member

    what kind of soil are you in?
  11.  
    max316420

    max316420 Well-Known Member

    there are a couple of different ways to get it but most common is using RO water without supplementing with calmag, Low soil ph, underfeeding... MJ eats tons of magnesium during flowering and most companies don't put enough in their foods. You can fix this by adding dolomite lime to your soil (to buffer ph), add calmag to your feeding schedule, foliar feed or root drench with epsom salt
  12.  
    wiseguy316

    wiseguy316 Well-Known Member

    I say you have mites. You may not see them but they are there. You may not see webs yet until it is too late, but you will. Act accordingly. Epsom salt will never hurt do it also.
  13.  
    max316420

    max316420 Well-Known Member

    take a close up pic of the underside of a leaf, one that has alot of the spotting on it
  14.  
    ChronicObsession

    ChronicObsession Well-Known Member

    if mag deficiency is right, could be because of water. I used RO water for a few weeks and discovered some deficiencies, but then I found out about Calmag product, should fix it up man
  15.  
    Dr Gruber

    Dr Gruber Well-Known Member

    I dont know much about diagnosing deficiencies but i always thought mag def showed as brown or rust colored spots?

    I thought youre idea of powdery mildew might be the right one...????????
  16.  
    max316420

    max316420 Well-Known Member

    actually it starts out like his pics then ends up like this, first pic is beginning of def and second is at the critical stage of mag def


    P1000701.jpg




    233.jpg
    [​IMG]
  17.  
    max316420

    max316420 Well-Known Member

    and when using ro water it is so pure that it has to be supplemented with calmag
  18.  
    turbocivic6776

    turbocivic6776 Active Member

    I had mites but i killed them or so i thought but i do not see them anywhere on this plant like i did before maybe its just causing the leaves to die now when they were eaten a while ago??? Oh and the soil is miracle gro moisture control but so far ive had much better luck with these plants then the ones i had in happy frog soil. im starting to think im low on nitrogen with and old spider mite problem.
  19.  
    max316420

    max316420 Well-Known Member

    It's almost impossible to get rid of spider mites once you get them so im thinkin you have spidermites and a mag def. But its not a nitrogen issue
  20.  
    turbocivic6776

    turbocivic6776 Active Member

    I do not use RO water i use tap but all the plants are on the same water and only one is showing this problem so i doubt that is it but since that is the only plant in a small ass pot it could be a deficiancy or pest imo if i am wrong please let me know

Share This Page