Defeats the purpose. There are recipes for using milk that has been diluted with water. The idea is that the diluted milk fat does start to sour which means that is is becoming mildly acidic. As it dries on the leaf it leaves an acid layer behind which helps to prevent the spores from attaching...
All three can be used at the same time. Add the dose from the first bottle to the water and shake or stir. Then add the dose from the next bottle and shake or stir. Then the third bottle. As it mentions in the basic instructions do not mix the concentrated fertilizers together all at the same...
When it is nice and sunny out and low humidity it becomes a lot harder for the mold or mildew spores to attach to the leaves and start to grow. That is the good point.
The bad point is that existing mold or mildew on other plants outdoors will release their spores when it is sunny and low...
The natural growing power the sun provides more than makes up for the occasional lower temperatures. Growing indoors is an artificial environment so what works will be somewhat different than outside.
After a couple of days the plants will become "hardened off" which is another way of saying...
Looks like one plant is about 2 weeks into flowering and the other one which is much yellower is about 4 weeks. Is this right?
Cannabis plant leaves starting to turn yellow is very common once they are several weeks into flowering. There are ways to keep it from happening. As @013 mentions...
From what I can see your plants are in pretty good shape. Except for all the red of course;). Really hard to tell how much yellowing is happening and what the shade of yellow is.
Advanced Nutrients has several pH Perfect lines of fertilizers. Tell us which one you are using and which of their...
I think that we can rule out mildews or molds. My experience with Powdery MIldew is that it will start in or on the buds since there are so many small areas there that it can become established. Once established it can be hard to spray for there and it can spread.
You buds look great and I do...
I have been chasing this down for a couple of years as part of looking up and understanding why so many growers encounter yellowing leaves about 2 to 3 weeks after their plants start flowering. It seems to always come back to a lack of enough Nitrogen. Nitrogen is needed for plant cell...
Just about the entire continental US will have the plants going into flower about the 10th-15th of August. Along the Canadian border it might be several days sooner. What might help figure it out is to not think of it as "hours of sun" but to think of the "continuous hours of dark".
Outdoors we...
Definitely looks like something laying on top of the leaf surface.
Can you give us a photo or two of any buds near the leaves? Just a photo or two should help to get a better idea of what is going on.
I have noticed that here in southeast Michigan it is when the listed times result in a 14 hour day. That happens by mid August. The first hour of the day right after listed sunrise and the last hour just before the listed sunset are not enough quality or strong light. Result is only 12 hours of...
I believe that if we were to take each individual sugar leaf and any small 3 finger fan leaf and spread them out we would be surprised just how large of a coverage there is. Multiply that by the number of buds.
The question is how much actual coverage comes from all those buds. And we have to...
Kinda thinking that if it takes a lot of banging around with ice cubes in a solid container to get the trichomes to break off for making ice hash. Tossing the buds around in a paper bag does not leave any noticeable layer of trichomes sitting on the bottom so I stopped worrying.