leaves yellowing/dead growth from bottom up, pictures

Hello,

This is my first grow and I am experiencing some issues, here is a synopsis;

growing 5 plants, using soil medium, and in week 5 of flowering. I am now seeing leaves yellowing at the tips and curling upwards, some leaf discoloration, and dead areas(leaf and bud) from the bottom, progressing upwards. some lower areas of the plant feel crispy/rusted. I was watering with 1/2 strength nutes 5 days a week( too excessive?), and I am now cutting back until I see changes. All of the upper portions of the plant are looking okay, but I am worried about this progression. Also, I have been dealing with powder mildew and I have recently been treating the plants with all types of stuff (copper fungicide, neem, dehumidifier, etc) so maybe they are reacting to the stress from being treated?

-Leaves are now yellowing at tip, usually curling slightly upward.

Only two plants are really affected badly, my crystal chunk looks like it is dying from the bottom up, with the lower leaves yellowing and dropping off.

I spent hours researching and trying to diagnose, I see multiple symptoms present but need more advice. I flushed with water tonight, will check tomorrow. Thanks in advance.


I don't know what else to include now, too tired.

Edit* here is a little more info;


can you answer these questions, need as much detail as possible, do you have pictures?


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*NOTE: Please Cut And Paste only the section that applies and add your response. The more information you can give the better and faster people can help you out.Pictures should be added to every thread to ensure a proper diagnosis, when using pictures please ensure your HPS if using one is not turned on while taking pictures, as the lighting hides the plants problems. Fill out

ARE YOU USING?

SOIL:

How long has this problem been going on? 1 week
What STRAIN are you growing? Crystal Chunk, LA Cantfidential and White Russian
What was the establishing technique? (seed or clone?) Clone
What is the age of your plants? 11 weeks
How long have they been in the soil mixture they are in now? 5 1/2 weeks
How Tall are the plants? 4 feet
What PHASE (seedling, vegetative or flower) are the plants in? Flower week 5
What Technique are you using? (SOG, SCROG etc) Soil, single 5 gallon pots
What substrate/medium are you using? What brand of soil mixture are you using?(percentage of perlite, vermiculite...etc?)Pro Mix and some roots organic with Perlite.
What Nutrient's are you using? AN connoisseur A+B, Bud Factor x, big bud, f1, nirvana, b-52, and now accelerator.
How much of each nutrient are you using with how much water? *Knowing the brand is very helpful* 1/2 strength
How often are you feeding? 5 days/week
What is the TDS/EC/PPM of your nutrients used?
What is the pH of the "RUN-OFF"?
What method of pH test was administered? Using Strips? pH pen?
How often are you watering?
When was your last feeding and how often are you feeding?
What size bulb are you using? 1000 W
What is the distance to the canopy? ~24 inches w/ super spreader

So from your info it looks like.... You have your plants in a soil mix and in addition you are giving 1/2 strength AN connoisseur A+B, Bud Factor x, big bud, f1, nirvana, b-52, accelerator and water 5 days a week all without knowing the Ph of your mix, water or run off. Is this correct?

those plants look to have a few problems going on with them,they look very stressed and over fertilized to me,whats your temp and humidity,the soil ph and run off ph, your water ph. it looks to me that you got your hands full there good luck peace and grow on

You might have a fungus like Powdery mildew or Downy mildew. Spore can spread to other plants quickly. A product like seranade will work. Remove plants from grow room, clean grow room to remove left over spores. Then put treated plants back in the grow room. Use it once a week til the problem goes away. Also Pyrethrin fogger Bomb will kill any thing moving.