Black dots

I have lots of black dots on some of my leaves not sure if its from nutrients or a bug probem i searched all around and i didnt find anything that looks or sounds like this.
 

Attachments

  • 2010-10-08 17.09.24.jpg
    2010-10-08 17.09.24.jpg
    64.1 KB · Views: 50
I have lots of black dots on some of my leaves not sure if its from nutrients or a bug probem i searched all around and i didnt find anything that looks or sounds like this.
Give as much info as possible. Temps, lights, nutes, water, soil or hydro, etc. One of the first things I would recommend is to take a real hard look at the underside of a few of the leaves. Look with a magnifying glass and see if you see any eggs or critters.:leaf:
 
Give as much info as possible. Temps, lights, nutes, water, soil or hydro, etc. One of the first things I would recommend is to take a real hard look at the underside of a few of the leaves. Look with a magnifying glass and see if you see any eggs or critters.:leaf:
temp is around 83; lights i have 2 42 watt CFL and 1 100 watt MH; nutes Schultz 10-15-10; water purified by reverse osmosis; soil orchid potting mix; and ill look again but i didnt see any eggs or critters
 
temp is around 83; lights i have 2 42 watt CFL and 1 100 watt MH; nutes Schultz 10-15-10; water purified by reverse osmosis; soil orchid potting mix; and ill look again but i didnt see any eggs or critters
Are you using any Calcium supplement? My first guess was Calcium and now that you've told me you are using r/o water and orchid mix I believe that's what is going on. Also, orchid mix isn't really good for cannabis IMO. It contains a lot of bark and lacks a lot of goodies cannabis needs. You could try a special orchid food which might help. Also, I recommend a Cal-mag supplement when using r/o water.:weed:
 
i wish i could say the same work has been real slow in these parts
I've gotta hustle but I can't complain. I worked in a lab at the beginning of the economic crisis and was laid off pretty quickly. Best thing that has ever happened to me. It finally got me off of my ass to do something I've always enjoyed. Now I get paid to do one of my hobbies.:mrgreen:


attachment.php
 

Attachments

  • DSC_0157.jpg
    DSC_0157.jpg
    21 KB · Views: 56
Are you using any Calcium supplement? My first guess was Calcium and now that you've told me you are using r/o water and orchid mix I believe that's what is going on. Also, orchid mix isn't really good for cannabis IMO. It contains a lot of bark and lacks a lot of goodies cannabis needs. You could try a special orchid food which might help. Also, I recommend a Cal-mag supplement when using r/o water.:weed:
im using lime to supplement calcium. i had a cal def before thats why i got the lime its just odd in the pic the spots look big but they are really small and many of them on the leaves
 
im using lime to supplement calcium. i had a cal def before thats why i got the lime its just odd in the pic the spots look big but they are really small and many of them on the leaves
What kind of lime and how are you applying it? Lime is fairly slow acting, in fact too slow for most strains of cannabis to be able to meet the high demands, especially in late veg and into flower. Also, unless you are using dolomite lime you are not getting much, if any magnesium. Your fertilizer contains zero mag if I remember correctly. Cannabis uses a lot of Mag as well.:weed:
 
I've gotta hustle but I can't complain. I worked in a lab at the beginning of the economic crisis and was laid off pretty quickly. Best thing that has ever happened to me. It finally got me off of my ass to do something I've always enjoyed. Now I get paid to do one of my hobbies.:mrgreen:


attachment.php

whats that make paper airplains? LOL
 
What kind of lime and how are you applying it? Lime is fairly slow acting, in fact too slow for most strains of cannabis to be able to meet the high demands, especially in late veg and into flower. Also, unless you are using dolomite lime you are not getting much, if any magnesium. Your fertilizer contains zero mag if I remember correctly. Cannabis uses a lot of Mag as well.:weed:
i think i might need more mag and the lime im using is pelletized lime it says its fast acting lol
 
i think i might need more mag and the lime im using is pelletized lime it says its fast acting lol
Yeah, fast acting is in relative terms. Did you mix it into your medium before planting or how are you applying it? Too much of it will wreck your pH so be careful with it.:fire:
 
hey snatch dont mind me in the background here.. your in good hands with the Doc, im just reading along and learning myself..

peace!!
 
im mixing it one tea spoon with one quart of water
That could be contributing to your problem right there. The caclium your plants are able to absorb is trivial, and you are probably doing more harm than good by messing your pH up. If it were my grow, I would immediately stop adding the lime to your water. Get yourself some cal-mag and start using that. Too much Calcium in your medium will lock out other nutrients as well. You may want to consider flushing with nothing more than pH'd r/o water. I think you caught this in time but I'm concerned if you don't act quickly you will start to see these problems only get worse in the coming days. Be patient and don't try to do too much at once. Best of luck my friend and don't hesitate to hit me up if you need anymore help.:weed:
 
Back
Top